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COMSPHERE 3900 SERIES MODEMS MODELS 3910 AND 391 1 POINT -T O-POINT/MUL TIPOINT INST ALLA TION AND OPERA TION MANUAL Document No. 3910-A2-GN32-30 November 1996.
COMSPHERE 3900 Series Modems A November 1996 3910-A2-GN32-30 COMSPHERE 3900 Series Modems Models 3910 and 391 1 Point-to-Point/Multipoint Installation and Operation Manual 3910-A2-GN32-30 4th Edition (November 1996) Changes and enhancements to the product and to the information herein will be documented and issued as a new release to this manual.
Safety Instructions B 3910-A2-GN32-30 November 1996 Important Safety Instructions 1. Read and follow all warning notices and instructions marked on the product or included in the manual. 2. This product is intended to be used with a three-wire grounding type plug – a plug which has a grounding pin.
COMSPHERE 3900 Series Modems C November 1996 3910-A2-GN32-30 Notices .
i 3910-A2-GN32-30 November 1996 T able of Contents Preface Objectives and Reader Assumptions vii . . . . . . . . . . . . . . . . . . . . . . . . . How to Use this Manual vii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Related Documents viii .
COMSPHERE 3900 Series Modems ii November 1996 3910-A2-GN32-30 3. DCP Operation Overview 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diagnostic Control Panels 3-2 . . . . . . . . . . . . . . . . . . .
T able of Contents iii 3910-A2-GN32-30 November 1996 Appendices A. Menu T ree A-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B. T roubleshooting B-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3900 Series Modems iv November 1996 3910-A2-GN32-30 List of Figures Figure Page 1-1 Model 3910 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Model 391 1 1-4 . . . . . . .
T able of Contents v 3910-A2-GN32-30 November 1996 List of T ables T able Page 1-1 . . . . . . . .
COMSPHERE 3900 Series Modems vi November 1996 3910-A2-GN32-30 T able Page D-2 V .25bis Response Messages D-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1 ASCII Characters E-1 . . . . . . . . . . . . . . .
vii 3910-A2-GN32-30 November 1996 Preface Objectives and Reader Assumptions This manual describes how to install and operate the COMSPHERE r 391x Series standalone and carrier -mounted modems. This manual assumes that you have a basic understanding of modems and their operation.
COMSPHERE 3900 Series Modems viii November 1996 3910-A2-GN32-30 Related Documents 3000-A2-GA31 COMSPHERE 3000 Series Carrier , Installation Manual 3610-A2-GZ45 3600 Hubbing Device Featur e Number 3600.
1-1 3910-A2-GN32-30 November 1996 Introduction Overview 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Features 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3900 Series Modems 1-2 November 1996 3910-A2-GN32-30 • Mixed inbound rates for multipoint applications. • Convenient migration to new or optional features through software downloading.
Introduction 1-3 3910-A2-GN32-30 November 1996 Standalone Model 3910 4-Wire/2-Wire Modem The standalone Model 3910 modem (Figure 1-1) is capable of either 4-wire/2-wire leased-line or dial operation. The modem is controlled using either A T commands or the diagnostic control panel (DCP).
COMSPHERE 3900 Series Modems 1-4 November 1996 3910-A2-GN32-30 Model 391 1’ s faceplate has 16 LED status indicators for displaying modem activity and an audio speaker jack for the carrier’ s optional speaker . The Model 391 1 modem’ s rear has two edge card connectors that mount into a connector plate located on the rear of the carrier .
Introduction 1-5 3910-A2-GN32-30 November 1996 manner similar to the DCP on the Model 3910. For a better understanding of DCP operation, refer to Chapter 3, DCP Operation .
COMSPHERE 3900 Series Modems 1-6 November 1996 3910-A2-GN32-30 7. If you experience trouble with this equipment, please contact your sales or service representative (as appropriate) for repair or warranty information.
Introduction 1-7 3910-A2-GN32-30 November 1996 Canada NOTICE T O THE USERS OF THE CANADIAN PUBLIC SWITCHED TELEPHONE NETWORK The Canadian Department of Communications label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational and safety requirements.
COMSPHERE 3900 Series Modems 1-8 November 1996 3910-A2-GN32-30 T echnical Specifications T able 1-1 shows the technical specifications for the 391x Series modems.
Introduction 1-9 3910-A2-GN32-30 November 1996 T able 1-1 (2 of 3) T echnical Specifications for 391x Series Modems Specifications Description ENVIRONMENT Operating T emperature 32 ° F (0 ° C) to 12.
COMSPHERE 3900 Series Modems 1-10 November 1996 3910-A2-GN32-30 T able 1-1 (3 of 3) T echnical Specifications for 391x Series Modems Specifications Description DA T A RA TES Leased Line 19200, 16800, 14400, 12000, 9600, 7200, 4800, 2400 1200 bps Dial Line 19200, 16800, 14400, 12000, 9600, 7200, 4800, 2400, 1200, 600, 300 bps ERROR CONTROL CCITT V .
2-1 3910-A2-GN32-30 November 1996 Modem Installation Overview 2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391x Series Modem Package 2-1 . . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3900 Series Modems 2-2 November 1996 3910-A2-GN32-30 For the carrier-mounted model • Installation instructions • Model 391 1 modem • Rear connector plate with two DB-25-S edge card connectors If any hardware components are damaged, notify your service representative.
Modem Installation 2-3 3910-A2-GN32-30 November 1996 The rear panel of the Model 3910 modem (Figure 2-1) has the following switches and connectors: • An ON/OFF power switch. • An 8-pin DIN type power receptacle (PWR) for the dc power supply . • An 8-pin modular keyed jack (LEASED) for 4-wire/2-wire leased lines.
COMSPHERE 3900 Series Modems 2-4 November 1996 3910-A2-GN32-30 DTE Connection Use the following procedures to connect the EIA-232-D cable from the modem to the DTE: 1.
Modem Installation 2-5 3910-A2-GN32-30 November 1996 Network Management System Connection For the Model 3910, use the following procedures to connect the modem to the network management system interface: 1. Insert the sub-miniature, 4-conductor modular plug of the 3600 Hubbing Device into the jack labeled NMS (Figure 2-1).
COMSPHERE 3900 Series Modems 2-6 November 1996 3910-A2-GN32-30 Selecting Factory Configuration Options After the modem passes the power -up self-test, configure it for operation using one of the six factory preset configurations.
Modem Installation 2-7 3910-A2-GN32-30 November 1996 6. Press the key until the appropriate configuration area appears on the LCD, then press the corresponding function key to select your choice. (Saving configuration options to the Active (Saved) configuration area automatically saves them to the Active (Operating) configuration area.
COMSPHERE 3900 Series Modems 2-8 November 1996 3910-A2-GN32-30 T o change a factory template using A T commands, perform the following steps. For more information on changing factory templates using A T commands, refer to Chapter 5, A T Command Set and S-Registers .
Modem Installation 2-9 3910-A2-GN32-30 November 1996 Removing and Replacing Model 3910 Modems T o remove and replace a Model 3910 modem, perform the following steps: 1. Make sure the modem is of fline, and press the modem’ s rear panel power switch to the OFF position.
COMSPHERE 3900 Series Modems 2-10 November 1996 3910-A2-GN32-30 Figure 2-2. Installing a Model 391 1 Modem 2. At the front of the carrier , hold the modem vertically , with the latch on its faceplate in the open position, and insert it into the top and bottom card guides of one of the slots numbered 1–16 (Figure 2-2).
Modem Installation 2-1 1 3910-A2-GN32-30 November 1996 5. Press the Select key to place the SDCP in direct communication with the selected modem. The LCD displays the T op-Level menu for the selected modem. In addition, the Front Panel LED on the modem’ s faceplate and the OK LED on the SDCP light.
COMSPHERE 3900 Series Modems 2-12 November 1996 3910-A2-GN32-30 Removing and Replacing Model 391 1 Modems CAUTION If the Model 391 1 is removed from the carrier , always use a ground strap when handling the modem. Always store the Model 391 1 in an antistatic bag when it is removed from the carrier .
3-1 3910-A2-GN32-30 November 1996 DCP Operation Overview 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diagnostic Control Panels 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3900 Series Modems 3-2 November 1996 3910-A2-GN32-30 Call Setup Branch 3-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dial 3-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DCP Operation 3-3 3910-A2-GN32-30 November 1996 Model 3910 Diagnostic Control Panel The diagnostic control panel (DCP) of the Model 3910 modem (Figure 3-1) contains status indicators, pushbutton-type keys, an LCD, and speaker grill.
COMSPHERE 3900 Series Modems 3-4 November 1996 3910-A2-GN32-30 Status Indicators The 391x Series modems’ status indicators continuously provide information on the modem’ s operating condition.
DCP Operation 3-5 3910-A2-GN32-30 November 1996 The standalone Model 3910 modem’ s DCP has 13 light-emitting diodes (LEDs), and the carrier-mounted Model 391 1 has 16 LEDs. These LEDs are listed and described in T able 3-1. LEDs specific to one model type have the appropriate model number shown in the table.
COMSPHERE 3900 Series Modems 3-6 November 1996 3910-A2-GN32-30 The SDCP LEDs are listed and described in T able 3-2. T able 3-2 SDCP LEDs Label Color Indicates OK green Power is ON and the modem is capable of operating. Alarm red The modem has detected a problem with its operation.
DCP Operation 3-7 3910-A2-GN32-30 November 1996 Hidden Choice Indicators The hidden choice indicators serve as an alert that other choices are available besides what is currently displaying on the LCD.
COMSPHERE 3900 Series Modems 3-8 November 1996 3910-A2-GN32-30 These keys also allow you to move the cursor one character to the left or right on data entry displays; for example, to allow entry of one digit at a time. F1 F2 F3 Keys Function keys select the LCD choice that appears above the function key; they are labeled F1, F2, and F3.
DCP Operation 3-9 3910-A2-GN32-30 November 1996 All menu tree branches are discussed later in Chapter 3 except for Configure, which is discussed in Chapter 4, and Security , which is discussed in Chapter 6. Functions that appear on the LCD vary depending upon the type of model installed, its operating mode, and software configuration.
COMSPHERE 3900 Series Modems 3-10 November 1996 3910-A2-GN32-30 T able 3-3 (2 of 4) T op-Level Menu Status Status Indicates Message Dial Backup or Ld B k Standby: MR* The modem is operating in Dial Standby mode. p Leased Backup DialBckUp: MR* The modem is operating in Dial Backup mode at the displayed data rate and is configured for Direct mode.
DCP Operation 3-1 1 3910-A2-GN32-30 November 1996 T able 3-3 (3 of 4) T op-Level Menu Status Status Indicates Message Call Failure Cont. No Dial–DTR The modem cannot dial because DTR is OFF . No Dial–T est The modem cannot dial because it is running a T est.
COMSPHERE 3900 Series Modems 3-12 November 1996 3910-A2-GN32-30 T able 3-3 (4 of 4) T op-Level Menu Status Status Indicates Message Firmware Download Result Cont. Remote Clone OK A remote cloning of firmware was successful. This message appears on the local modem’s LCD.
DCP Operation 3-13 3910-A2-GN32-30 November 1996 Messages listed in T able 3-5 are dial access security messages. T able 3-5 Dial Access Security Messages Dial Access Security Message Indicates Get VF PsWd The answering modem is waiting for the originating caller to transmit a VF password.
COMSPHERE 3900 Series Modems 3-14 November 1996 3910-A2-GN32-30 Quick Configuration Display The Quick Configuration display indicates the basic operational characteristics of the modem. F1 Leased:19.2 Status Configure F2 F3 T o access the Quick Configuration display from the T op-Level display , press the key .
DCP Operation 3-15 3910-A2-GN32-30 November 1996 Status Branch The Status branch of the T op-Level menu allows you to view the current status of the leased-line or dial connection, the identity (for example, serial number and model number) of your equipment, and the DTE interface.
COMSPHERE 3900 Series Modems 3-16 November 1996 3910-A2-GN32-30 Device Health and Status (DeviceHS) DeviceHS provides a ‘ ‘snapshot” of current modem alarms which are active at the time the DeviceHS function is selected.
DCP Operation 3-17 3910-A2-GN32-30 November 1996 T able 3-6 (1 of 2) Health and Status Messages T ype Message Indicates Major Device Failure A device/self test has failed. The probable cause is a modem hardware problem or diagnostic memory failure. Facility Fault A severe data transport problem is occurring due to poor line conditions.
COMSPHERE 3900 Series Modems 3-18 November 1996 3910-A2-GN32-30 T able 3-6 (2 of 2) Health and Status Messages T ype Indicates Message Dial Make Busy Mode The modem is in a Make Busy condition. Service Line (Model 391 1 only) The modem installed in a COMSPHERE 3000 Series Carrier has been switched to a service line.
DCP Operation 3-19 3910-A2-GN32-30 November 1996 VF VF displays the condition of the leased or dial connection. T o access VF from the Status branch, make the following selection: F1 Status: > DeviceHS VF F2 F3 Select VF .
COMSPHERE 3900 Series Modems 3-20 November 1996 3910-A2-GN32-30 NonLnearDist Non-Linear Distortion displays distortion which is usually associated with pulse-code modulation (PCM) compandor noise on the phone line. This value appears for T rellis Multipoint modulation.
DCP Operation 3-21 3910-A2-GN32-30 November 1996 DTE DTE displays the state and/or activity of the following interface leads: LSD, DTR, DSR, T st, TXD, RXD, R TS, and CTS.
COMSPHERE 3900 Series Modems 3-22 November 1996 3910-A2-GN32-30 To access Backup from the Status branch, make the following selection: Press the key until Backup appears.
DCP Operation 3-23 3910-A2-GN32-30 November 1996 T able 3-7 Backup Status Screens Active Line 1st Screen Display Inactive Line 2nd Screen Display Possible Inactive/Backup Line Condition Line=Pri 4w APL or Line=Pri 2w APL Bckup:2wAPL=XXXX or Bckup : Dial =(blank) Good indicates that line continuity is detected.
COMSPHERE 3900 Series Modems 3-24 November 1996 3910-A2-GN32-30 F1 Options:Status > V .29 V .33 F2 F3 If optional features are installed in the modem, they appear on the LCD’ s bottom line. If other features are installed, press the key to scroll other features into view .
DCP Operation 3-25 3910-A2-GN32-30 November 1996 The LCD displays the first sequence fault field. (Sequence fault fields range from 1 to 8 and are identified by a number in the upper right corner .) Press the key to view the remaining fields. The message Modem O.
COMSPHERE 3900 Series Modems 3-26 November 1996 3910-A2-GN32-30 T o access PList from the T op-Level menu, make the following selections: F1 Leased:19.
DCP Operation 3-27 3910-A2-GN32-30 November 1996 If there are modems in the poll list when you select Display , xxx Displays the network management address of the modem in the poll list. yyyyyy Displays either Active or Skip to indicate the poll list in which the network management address is included.
COMSPHERE 3900 Series Modems 3-28 November 1996 3910-A2-GN32-30 F1 Poll List:Chang > Active Delete F2 F3 T o implement Change, select the appropriate function (Active, Delete, or Skip).
DCP Operation 3-29 3910-A2-GN32-30 November 1996 F1 Poll List:Add Command Complete F2 F3 The message Command Complete appears on the LCD to indicate that the tributary modem will be added to the control modem’ s poll list. T o exit this function and remain in the PList branch, press the key .
COMSPHERE 3900 Series Modems 3-30 November 1996 3910-A2-GN32-30 The number field (yyy) indicates the total number of devices that responded to the modem’ s polls. These devices have been acquired for the poll list. Select Abort or allow the function to complete.
DCP Operation 3-31 3910-A2-GN32-30 November 1996 Speaker Speaker allows you to make temporary adjustments to the modem’ s speaker volume. Upon a reset, speaker volume returns to its configured setting. For more information on speaker settings, refer to the Misc section in Chapter 4.
COMSPHERE 3900 Series Modems 3-32 November 1996 3910-A2-GN32-30 T o access Reset from the Control branch, make the following selection: F1 Control: > Speaker Reset F2 F3 Select Reset. The message Reset appears momentarily before the modem performs the power -up diagnostic test sequence.
DCP Operation 3-33 3910-A2-GN32-30 November 1996 T o exit this function and remain in the Control branch, press the key . T o exit and return to the T op-Level menu, press the key . EIA LEDs Use the EIA LEDs function to change the port that controls the front panel LEDs.
COMSPHERE 3900 Series Modems 3-34 November 1996 3910-A2-GN32-30 Make Busy/Remove Make Busy The Make Busy function forces the modem of f-hook so it cannot answer a call. This is often used with PBX systems to permit the busy out of a PBX port for rotary or hunt groups.
DCP Operation 3-35 3910-A2-GN32-30 November 1996 Service Line/Disconnect Service Line The Service Line function allows you to switch a specific Model 391 1 installed in a COMSPHERE 3000 Series Carrier from normal leased or dial operation to service-line operation.
COMSPHERE 3900 Series Modems 3-36 November 1996 3910-A2-GN32-30 Selecting Clone Remote NOTE Clone Remote operations are not supported unless both local and remote modems are 391x Series modems. (The 3800 or 392x Series modems cannot be used in cloning operations with 391x Series modems.
DCP Operation 3-37 3910-A2-GN32-30 November 1996 Clone Remote in Broadcast Configurations A tributary modem configured for extended diagnostics (Diagnostic Connection configuration option set to Modem(DC)) can perform two types of Remote Clone operations.
COMSPHERE 3900 Series Modems 3-38 November 1996 3910-A2-GN32-30 Viewing DC Broadcast Clone Results F1 Choose DLL T ype > DC_CloneResults F2 F3 From the Choose DLL T ype screen, press the key until DC_CloneResults appears to view the results of the last DC_Broadcast clone operation.
DCP Operation 3-39 3910-A2-GN32-30 November 1996 • For Multiple download configurations, ensure that the control modem’ s active poll list contains all the network management addresses for the rem.
COMSPHERE 3900 Series Modems 3-40 November 1996 3910-A2-GN32-30 Cloning a Multiple TMp Remote F1 Choose DLL T ype > Single Multiple F2 F3 Press the F3 key to select Multiple Clone Remote. After completing this action, proceed to the next section, Implementing a Clone Remote Operation .
DCP Operation 3-41 3910-A2-GN32-30 November 1996 F1 W arning:Download Abort_Download F2 F3 At this point, if you do not want to continue this process, abort the transfer by selecting any function key . This returns the modem to the DwnLoadSoftware menu.
COMSPHERE 3900 Series Modems 3-42 November 1996 3910-A2-GN32-30 F1 RemClone Status Bank1:xxxx/yyyy F2 F3 As data banks are transferred, the local and remote LCD’ s bottom line displays the status of the download process, and the number of records sent versus the total number of records for that bank.
DCP Operation 3-43 3910-A2-GN32-30 November 1996 F1 RSL High (- dBm) N x t 0 9 F2 F3 In the example shown above, 09 is the upper (High) RSL threshold (in - dBm).
COMSPHERE 3900 Series Modems 3-44 November 1996 3910-A2-GN32-30 To save the edited threshold(s): F1 RSL High (- dBm) N x t 10 F2 F3 Press the key to scroll up to the Edit/Save screen. F1 VF Thresholds Edit Save Reset F2 F3 Select Save. If the edited VF thresholds are valid, the Save command stores them into nonvolatile memory .
DCP Operation 3-45 3910-A2-GN32-30 November 1996 T able 3-8 V alid Ranges for VF Thresholds VF Thresholds V alid Ranges Default V alues Receive Signal Level High 0 dBm to –15 dBm Above –9 dBm Rece.
COMSPHERE 3900 Series Modems 3-46 November 1996 3910-A2-GN32-30 T est Branch The T est branch of the T op-Level menu allows you to initiate various modem tests. Use these tests if you are having data communication problems, such as periodic character loss, random errors, or constant format errors.
DCP Operation 3-47 3910-A2-GN32-30 November 1996 T o access Abort from the T est branch, make the following selection: F1 T est: > Abort Self F2 F3 Select Abort. F1 T est:Abort Command Complete F2 F3 The modem stops all tests currently in progress and displays the Command Complete status message on the LCD.
COMSPHERE 3900 Series Modems 3-48 November 1996 3910-A2-GN32-30 NOTE For tributary modems only , the test is delayed 30 seconds to allow any outstanding network management messages to propagate upstream before the VF channel is interrupted by the test.
DCP Operation 3-49 3910-A2-GN32-30 November 1996 F1 T est:Local Loop Started F2 F3 NOTE For tributary modems only , the test is delayed 30 seconds to allow any outstanding network management messages to propagate upstream before the VF channel is interrupted by the test.
COMSPHERE 3900 Series Modems 3-50 November 1996 3910-A2-GN32-30 T o access Rem Digital Loop from the T est branch, make the following selections: F1 T est: Rem_Digital_Loop F2 F3 Press the key until Rem_Digital_Loop appears. Press any function key to start this test.
DCP Operation 3-51 3910-A2-GN32-30 November 1996 T o access Loc Digital Loop from the T est branch, make the following selections: F1 T est: Loc_Digital_Loop F2 F3 Press the key until Loc_Digital_Loop appears. Press any function key to start this test.
COMSPHERE 3900 Series Modems 3-52 November 1996 3910-A2-GN32-30 Figure 3-8. Pattern T est and Digital Loopback T est Figure 3-9. End-to-End Pattern T est T o access Pattern from the T est branch, make the following selections: F1 T est: < Pattern F2 F3 Press the key until Pattern appears.
DCP Operation 3-53 3910-A2-GN32-30 November 1996 BlksErrd=xxxxxxx displays the number of blocks of data found in error (block size is 1000 bits per block). BlksRcvd=xxxxxxx displays the total number of blocks of data received. The message NoSync appears as a value for BlksErrd while the modem’ s receiver is synchronizing.
COMSPHERE 3900 Series Modems 3-54 November 1996 3910-A2-GN32-30 F1 Sub-network HS Nxt xxx yyyyyy F2 F3 When you select SubHS, xxx Displays the network management address of the downstream modem selected. yyyyyy Displays the status of the downstream modem.
DCP Operation 3-55 3910-A2-GN32-30 November 1996 Call_Setup “Status” Status Configure PList Control T est SubHS Tlk/Data Security Remote Dial Disconnect Answer Dial_Standby or Return_to_Dial Chang.
COMSPHERE 3900 Series Modems 3-56 November 1996 3910-A2-GN32-30 F1 DialDirectory: Nxt 01:5551234 F2 F3 T o view other directory locations, select Nxt. F1 DialDirectory: Nxt 02:5461879 F2 F3 Once the directory location you want appears on the LCD, press the F2 or F3 key to dial the number .
DCP Operation 3-57 3910-A2-GN32-30 November 1996 For dial backup applications, the modem goes on-hook (hangs up) and the call is disconnected. The Command Complete status message appears. T o exit this function and remain in the Call Setup branch, press the key .
COMSPHERE 3900 Series Modems 3-58 November 1996 3910-A2-GN32-30 496-13081-01 MODEM MODEM LEASED-LINE F AILURE XX DIAL BACKUP LINE DIAL ST ANDBY RETURN TO DIAL Figure 3-10. Dial Backup Under normal backup conditions, when a problem occurs on the primary leased line, the modems establish a connection over the backup network.
DCP Operation 3-59 3910-A2-GN32-30 November 1996 F1 Dial Standby Command Complete F2 F3 If the modem is operating in a Dial Backup mode, the Dial Standby function forces the modem to primary leased lines and the LCD displays the status message Command Complete .
COMSPHERE 3900 Series Modems 3-60 November 1996 3910-A2-GN32-30 Entering T elephone Numbers and Dial Command Modifiers into Directory Locations The following example uses an empty directory location for describing how to enter a telephone number .
DCP Operation 3-61 3910-A2-GN32-30 November 1996 T able 3-9 V alid Dial Command Modifiers Dial command modifiers are parameters entered in the dial command string which specify how , when, and what number to dial. The following is a list of parameters the 391x Series modems recognize: T — T one (DTMF) dial.
COMSPHERE 3900 Series Modems 3-62 November 1996 3910-A2-GN32-30 F1 Number Status Nxt 01:Allowed F2 F3 Select Nxt to display other directory locations. The status of a directory location can be: No Number The directory location is empty . Allowed The number in this directory location may be dialed at this time.
DCP Operation 3-63 3910-A2-GN32-30 November 1996 The following sections describe three uses of the T alk/Data function. Manual Dialing When the Remote Modem is Configured for Auto-Answer NOTE On the remote modem, the Line Current Disconnect configuration option (refer to the Line Dialer section in Chapter 4) must be set to Disable.
COMSPHERE 3900 Series Modems 3-64 November 1996 3910-A2-GN32-30 Manual Dialing When the Remote Modem is Configured for Manual Answer NOTE On both modems, the Line Current Disconnect configuration option (refer to the Line Dialer section in Chapter 4) must be set to Disable .
DCP Operation 3-65 3910-A2-GN32-30 November 1996 Remote Branch The Remote branch of the T op-Level menu allows you to control the remote modem’ s DCP using the local modem’ s DCP . This function allows you to change configuration options and control test functions in a remote modem.
COMSPHERE 3900 Series Modems 3-66 November 1996 3910-A2-GN32-30 NOTE When initiating a Remote function from a TMp tributary modem, primary channel operation is not available. Also, if the tributary modem is not on the control modem’ s poll list, the error message No T rib Session appears when the function is executed.
DCP Operation 3-67 3910-A2-GN32-30 November 1996 For T rellis Multipoint (TMp) modems (control or tributary), you must specify the remote access password of the modem that will be accessed by the Remote function. The following display does not appear in point-to-point modems.
COMSPHERE 3900 Series Modems 3-68 November 1996 3910-A2-GN32-30 Status “Status” Configure PList Control T est SubHS Call_Setup ExitRem The T op-Level menu of the remote 391x Series modem is similar to the local 391x Series modem with the following exceptions: • The T alk/Data and Security branches do not appear .
DCP Operation 3-69 3910-A2-GN32-30 November 1996 Diagnostic Control Panel Access NOTE This page of the manual is self supporting and can be removed to prevent unwanted knowledge of the DCP security access selections. Use the DCP security access function to “lock” the DCP of any 391x Series modem and prevent unwanted user access.
4-1 3910-A2-GN32-30 November 1996 DCP Configuration Overview 4-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Configure Branch 4-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3900 Series Modems 4-2 November 1996 3910-A2-GN32-30 NOTE If you are using A T commands, a period of time can exist in which the contents of Active (Operating) and Active (Saved) dif fer . Once you issue an A T&W0 (write) command, however , the two storage areas are identical.
DCP Configuration 4-3 3910-A2-GN32-30 November 1996 Active ( Saved) (A TZ0, A TZ3) Customer1 (A TZ1) Customer2 (A TZ2) Factory US E AT & W COMMAND TO SA VE CHANGE S T O Activ e ( Saved), Customer1.
COMSPHERE 3900 Series Modems 4-4 November 1996 3910-A2-GN32-30 Configure Branch The Configure branch of the T op-Level menu contains all of the modem’ s configuration options (straps) which determine how the modem operates. These configuration options are accessed by scrolling down and across various levels of the Configure branch.
DCP Configuration 4-5 3910-A2-GN32-30 November 1996 The Configure branch consists of the following three levels: • Ld EditAr ea frm . Allows the selection of the Active (Operating), Active (Saved), Customer 1, Customer 2, and Factory configuration areas.
COMSPHERE 3900 Series Modems 4-6 November 1996 3910-A2-GN32-30 F1 Ld Fact Preset: > Sync_Leased F2 F3 Select Sync_Leased. F1 Choose Mode: Answer Originate F2 F3 Select Answer .
DCP Configuration 4-7 3910-A2-GN32-30 November 1996 F1 StrapsWhenDisc > Nxt No_Change F2 F3 F1 RemAccssPasswrd: N x t 0 0000000 F2 F3 Select Nxt until RemAccssPasswrd appears. F1 RemAccssPasswrd: N x t 1 0000000 F2 F3 Select the F2 ( ) key to increment password values.
COMSPHERE 3900 Series Modems 4-8 November 1996 3910-A2-GN32-30 T o save the new password to a configuration area, make the following selections: F1 RemAccssPasswrd: N x t 12345678 F2 F3 Press the key to scroll up (twice). F1 Choose Function Edit Save F2 F3 Select Save.
DCP Configuration 4-9 3910-A2-GN32-30 November 1996 Configuration T ables The modem’ s configuration options are arranged into nine groups based on functionality: DTE Interface (T able 4-1), DTE Dialer (T able 4-2), Line Dialer (T able 4-3), Dial Line (T able 4-4), Leased Line (T able 4-5), V .
COMSPHERE 3900 Series Modems 4-10 November 1996 3910-A2-GN32-30 T able 4-1 (1 of 10) DTE Interface Configuration Options Async/Sync Mode: Sync Nxt Sync Async Asynchronous/Synchronous Mode. Determines whether the modem operates in Asynchronous mode or Synchronous mode.
DCP Configuration 4-1 1 3910-A2-GN32-30 November 1996 T able 4-1 (2 of 10) DTE Interface Configuration Options Asyn Parity Bit: None Nxt None Even Odd Mark Space This configuration option only appears if Async/Sync Mode is configured for Async. Asynchronous Parity Bit.
COMSPHERE 3900 Series Modems 4-12 November 1996 3910-A2-GN32-30 T able 4-1 (3 of 10) DTE Interface Configuration Options DTR Action: Ignore Nxt Ignore Stndrd_RS232 CntrlsOnHook CntrlsTxMute Data T erminal Ready Action. DTR is a signal from the DTE to the modem indicating that the DTE is connected and ready for operation.
DCP Configuration 4-13 3910-A2-GN32-30 November 1996 T able 4-1 (4 of 10) DTE Interface Configuration Options DSR Control: Stndrd_RS232 Nxt Stndrd_RS232 Forced_On WinkWhenDisc Follows_DTR On_Early Delay_T oData Data Set Ready Control. DSR is a signal from the modem to the DTE indicating the modem is connected and ready for operation.
COMSPHERE 3900 Series Modems 4-14 November 1996 3910-A2-GN32-30 T able 4-1 (5 of 10) DTE Interface Configuration Options RTS Action: Stndrd_RS232 Nxt Stndrd_RS232 Ignore Sim_Cntl_Car Cntl_Car Request-to-Send Action. R TS is a signal from the DTE indicating the DTE has data to send.
DCP Configuration 4-15 3910-A2-GN32-30 November 1996 T able 4-1 (6 of 10) DTE Interface Configuration Options CTS Control: Stndrd_RS232 Nxt Stndrd_RS232 Forced_On WinkWhenDisc Follows_DTR Follows_R TS40 Clear-to-Send Control. CTS is a signal from the modem to the DTE indicating that it can accept data from the DTE.
COMSPHERE 3900 Series Modems 4-16 November 1996 3910-A2-GN32-30 T able 4-1 (7 of 10) DTE Interface Configuration Options LSD Control: Stndrd_RS232 Nxt Stndrd_RS232 Forced_On WinkWhenDisc Follows_DTR Sim_Cntl_Car =DTR/DiscOFF Line Signal Detect Control.
DCP Configuration 4-17 3910-A2-GN32-30 November 1996 T able 4-1 (8 of 10) DTE Interface Configuration Options TX Clock Source: Internal Nxt Internal External RXC_Loop This configuration option only appears if Async/Sync Mode is configured for Sync. T ransmit Clock Source.
COMSPHERE 3900 Series Modems 4-18 November 1996 3910-A2-GN32-30 T able 4-1 (9 of 10) DTE Interface Configuration Options CT1 1 1_Rate Cntl: Disable Nxt Disable Fallback1 Fallback2 CT1 1 1 Rate Control. Allows the DTE to control modem rate via Pin 23 of the EIA-232-D interface.
DCP Configuration 4-19 3910-A2-GN32-30 November 1996 T able 4-1 (10 of 10) DTE Interface Configuration Options Extend Main Ch.: Disable Nxt Disable Enable Primary data can only be extended one link. Extend Main Channel. This configuration option supports extended diagnostics.
COMSPHERE 3900 Series Modems 4-20 November 1996 3910-A2-GN32-30 T able 4-2 (1 of 5) DTE Dialer Configuration Options DTE Dialer T ype: Disable Nxt Disable A T V25bis_Async V25bis_Bsync V25bis_HDLC DTR=Direct1 A T&T_Exclusv Data T erminal Equipment Dialer T ype.
DCP Configuration 4-21 3910-A2-GN32-30 November 1996 T able 4-2 (2 of 5) DTE Dialer Configuration Options A T Escape Char: 043 ASCI Nxt 043 ASCI This configuration option only appears if DTE Dialer T ype is configured for A T . A T Escape Character .
COMSPHERE 3900 Series Modems 4-22 November 1996 3910-A2-GN32-30 T able 4-2 (3 of 5) DTE Dialer Configuration Options CarriageRtn Char: 013 ASCI Nxt 013 ASCI This configuration option only appears if DTE Dialer T ype is configured for A T . Carriage Return Character .
DCP Configuration 4-23 3910-A2-GN32-30 November 1996 T able 4-2 (4 of 5) DTE Dialer Configuration Options ExtendResltCode: Enable Nxt Enable Disable Add/EC Add/V42,MNP Use_DTE_Rate This configuration option only appears if DTE Dialer T ype is configured for A T .
COMSPHERE 3900 Series Modems 4-24 November 1996 3910-A2-GN32-30 T able 4-2 (5 of 5) DTE Dialer Configuration Options A T Cmnd Mode: Normal Nxt Normal No_ERROR NoStrapOrERR This configuration option only appears if DTE Dialer T ype is configured for A T .
DCP Configuration 4-25 3910-A2-GN32-30 November 1996 Line Dialer The Line Dialer configuration options establish parameters used by the modem to answer or originate calls.
COMSPHERE 3900 Series Modems 4-26 November 1996 3910-A2-GN32-30 T able 4-3 (2 of 5) Line Dialer Configuration Options Blind Dial Pause: 2sec Nxt 2sec 4sec 6sec 8sec 10sec 20sec This configuration option only appears when Dial T one Detect is configured for Disable.
DCP Configuration 4-27 3910-A2-GN32-30 November 1996 T able 4-3 (3 of 5) Line Dialer Configuration Options Fast Disconnect: Disable Nxt Disable Enable Fast Disconnect. Allows the modem to disconnect immediately after receiving a disconnect command from a local DTE or its own diagnostic control panel.
COMSPHERE 3900 Series Modems 4-28 November 1996 3910-A2-GN32-30 T able 4-3 (4 of 5) Line Dialer Configuration Options No Carrier Disc: 2sec Nxt 2sec Disable 5sec 10sec 20sec No Carrier Disconnect. If the modem no longer receives carrier from the remote modem, it disconnects the call.
DCP Configuration 4-29 3910-A2-GN32-30 November 1996 T able 4-3 (5 of 5) Line Dialer Configuration Options MakeBusyV ia DTR: Disable End Disable Enable Make Busy V ia DTR. Determines if the modem goes of f-hook when DTR is OFF . Enable this setting if the DTE normally keeps DTR ON and turns DTR OFF when the DTE cannot accept a call.
COMSPHERE 3900 Series Modems 4-30 November 1996 3910-A2-GN32-30 Dial Line The Dial Line configuration options are used to configure the modem for operation over dial lines.
DCP Configuration 4-31 3910-A2-GN32-30 November 1996 T able 4-4 (2 of 3) Dial Line Configuration Options V32bis Automode: Enable Nxt Enable Disable System 85 This configuration option only appears when Dial Line Rate is configured for V .32 terbo, V .
COMSPHERE 3900 Series Modems 4-32 November 1996 3910-A2-GN32-30 T able 4-4 (3 of 3) Dial Line Configuration Options V22b Guard T one: Disable Nxt Disable 550Hz 1800Hz This configuration option only appears when Dial Line Rate is configured for V .22bis or V .
DCP Configuration 4-33 3910-A2-GN32-30 November 1996 Leased Line The Leased Line configuration options only appear when the Sync Leased factory preset template is selected.
COMSPHERE 3900 Series Modems 4-34 November 1996 3910-A2-GN32-30 T able 4-5 (2 of 6) Leased Line Configuration Options LeasedLine Rate: 19200(V32t) Nxt 19200(V32t) 16800(V32t) 14400(V32b) 12000(V32b) 9.
DCP Configuration 4-35 3910-A2-GN32-30 November 1996 T able 4-5 (3 of 6) Leased Line Configuration Options V32bis Autorate: Enable Nxt Enable Disable This configuration option only appears when Leased Line Rate is configured for V .32 terbo or V .32bis data rate.
COMSPHERE 3900 Series Modems 4-36 November 1996 3910-A2-GN32-30 T able 4-5 (4 of 6) Leased Line Configuration Options AutoDialStandby: Disable Nxt Disable 15min 1hr 4hr T est(2min) Adv 15min Adv 30min.
DCP Configuration 4-37 3910-A2-GN32-30 November 1996 T able 4-5 (5 of 6) Leased Line Configuration Options V .27bis T rain. Controls the train time for V .
COMSPHERE 3900 Series Modems 4-38 November 1996 3910-A2-GN32-30 T able 4-5 (6 of 6) Leased Line Configuration Options Dual_Leased_Ln: Disable Nxt Disable Enable This configuration option is only available when the Dual Leased Line device option is installed.
DCP Configuration 4-39 3910-A2-GN32-30 November 1996 T able 4-6 (1 of 8) V .42/MNP/Buffer Configuration Options Err Contrl Mode: V42/MNPorBfr Nxt V42/MNPorBfr V42/MNPorDsc MNP_or_Buf fr MNP_or_Disc Buf ferMode DirectMode LAPM_or_Disc LAPM_or_Bufr This configuration option is only available if Async/Sync Mode is configured for Async.
COMSPHERE 3900 Series Modems 4-40 November 1996 3910-A2-GN32-30 T able 4-6 (2 of 8) V .42/MNP/Buffer Configuration Options Err Contrl Mode (Continued) Nxt V42/MNPorBfr V42/MNPorDsc MNP_or_Buf fr MNP_or_Disc Buf ferMode DirectMode LAPM_or_Disc LAPM_or_Bufr The A T command for Buffer Mode is N0.
DCP Configuration 4-41 3910-A2-GN32-30 November 1996 T able 4-6 (3 of 8) V .42/MNP/Buffer Configuration Options EC Negotiat Bfr: Disable Nxt Disable Enable Disab&Switch This configuration option is only available if Async/Sync Mode is configured for Async, and Error Control Mode is configured for V42/MNPorBfr , MNP_or_Buffr , or LAPM_or_Bufr .
COMSPHERE 3900 Series Modems 4-42 November 1996 3910-A2-GN32-30 T able 4-6 (4 of 8) V .42/MNP/Buffer Configuration Options Flw Cntl of DTE: CTS_to_DTE Nxt CTS_to_DTE Disable XON/XOFF This configuration option is only available if Async/Sync Mode is configured for Async, and Error Control Mode is not configured for DirectMode.
DCP Configuration 4-43 3910-A2-GN32-30 November 1996 T able 4-6 (5 of 8) V .42/MNP/Buffer Configuration Options XON/XOFF Psthru: Disable Nxt Disable Enable This configuration option is only available if Async/Sync Mode is configured for Async, and Flow Control of Modem is configured for XON/XOFF .
COMSPHERE 3900 Series Modems 4-44 November 1996 3910-A2-GN32-30 T able 4-6 (6 of 8) V .42/MNP/Buffer Configuration Options Break Buf fr Ctl: Keep_Data Nxt Keep_Data Discard_Data This configuration option is only available if Async/Sync Mode is configured for Async, and Error Control Mode is not configured for DirectMode.
DCP Configuration 4-45 3910-A2-GN32-30 November 1996 T able 4-6 (7 of 8) V .42/MNP/Buffer Configuration Options BuffrDiscDelay: 10sec Nxt 10sec Disable 60sec This configuration option is only available if Async/Sync Mode is configured for Async, and Error Control Mode is not configured for DirectMode.
COMSPHERE 3900 Series Modems 4-46 November 1996 3910-A2-GN32-30 T able 4-6 (8 of 8) V .42/MNP/Buffer Configuration Options RdcdAsyncBufSiz: Disable End Disable Enable This configuration option is only.
DCP Configuration 4-47 3910-A2-GN32-30 November 1996 T able 4-7 (2 of 2) T est Configuration Options T est Timeout: Disable Nxt Disable 30sec 60sec 240sec T est Time-out. Determines how long a test runs before aborting. H Disable Allows a test to run indefinitely .
COMSPHERE 3900 Series Modems 4-48 November 1996 3910-A2-GN32-30 Misc The Miscellaneous configuration options determine specifics for various functions, including network management parameters and remote modem access.
DCP Configuration 4-49 3910-A2-GN32-30 November 1996 T able 4-8 (2 of 4) Miscellaneous Configuration Options Speaker V olume: Medium Nxt Medium Low High Speaker V olume.
COMSPHERE 3900 Series Modems 4-50 November 1996 3910-A2-GN32-30 T able 4-8 (3 of 4) Miscellaneous Configuration Options NMS_Call_Msgs: CallCnct&Prg Nxt CallCnct&Prg Disable CallCnctOnly CallProgOnly NMS Call Messages. Determines if the modem status and/or call summary information is sent to the NMS.
DCP Configuration 4-51 3910-A2-GN32-30 November 1996 T able 4-8 (4 of 4) Miscellaneous Configuration Options Diag Connection: Modem(DC) Nxt Modem(DC) NMS(CC) Disable This configuration option is not available if the LeaseLine Rate is configured for TMp and the NetworkPosition is configured for T ributary .
5-1 3910-A2-GN32-30 November 1996 A T Command Set and S-Registers Overview 5-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Modes 5-1 . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3900 Series Modems 5-2 November 1996 3910-A2-GN32-30 Escape Sequence and Escape Guard Time The escape sequence is only issued when the modem is online and in Data mode. The 391x Series modem uses three consecutive plus ( + ) characters as the escape sequence.
A T Command Set and S-Registers 5-3 3910-A2-GN32-30 November 1996 Result Codes T able 5-1 lists all valid result codes for the 391x Series modem. T able 5-1 (1 of 2) Result Codes Numbers (1) Numbers (.
COMSPHERE 3900 Series Modems 5-4 November 1996 3910-A2-GN32-30 T able 5-1 (2 of 2) Result Codes Numbers (1) Description Word Numbers (2) 26 15 CONNECT 7200/ EC*** Connection at 7200 bps with error con.
A T Command Set and S-Registers 5-5 3910-A2-GN32-30 November 1996 T able 5-2 (1 of 3) 391x Series A T Commands AT Command Description DCP LCD Command Sequence A/ Repeat Last Command. Reexecutes last command string. (Not to be preceded with A T or followed by pressing the Return key .
COMSPHERE 3900 Series Modems 5-6 November 1996 3910-A2-GN32-30 T able 5-2 (2 of 3) 391x Series A T Commands AT Command DCP LCD Command Sequence Description D n (cont.) @ — Quiet answer . W ait for five seconds of silence after dialing the number . If the silence is not detected, the modem sends either a NO ANSWER result to the DTE.
A T Command Set and S-Registers 5-7 3910-A2-GN32-30 November 1996 T able 5-2 (3 of 3) 391x Series A T Commands AT Command DCP LCD Command Sequence Description O Return to Online or Data Mode. Returns modem to Data mode from Online Command mode. None P Pulse Dial.
COMSPHERE 3900 Series Modems 5-8 November 1996 3910-A2-GN32-30 T able 5-3 (2 of 8) 391x Series A T Commands AT Command DCP LCD Command Sequence Description X n Extended Result Code, Dial T one Detect, and Busy T one Detect Configuration Options.
A T Command Set and S-Registers 5-9 3910-A2-GN32-30 November 1996 T able 5-3 (3 of 8) 391x Series A T Commands AT Command DCP LCD Command Sequence Description Z n Reset and Load Active. Z0 Loads configuration options from Active (Saved) to Active (Operating).
COMSPHERE 3900 Series Modems 5-10 November 1996 3910-A2-GN32-30 T able 5-3 (4 of 8) 391x Series A T Commands AT Command DCP LCD Command Sequence Description &F n Select Factory Default Configuration Options. Loads factory configuration options into Active (Operating) area.
A T Command Set and S-Registers 5-1 1 3910-A2-GN32-30 November 1996 T able 5-3 (5 of 8) 391x Series A T Commands AT Command DCP LCD Command Sequence Description &M n and &Q n Async/Sync Mode and DTE Dialer T ype. &M0, &Q0 Modem operates in Asynchronous mode and uses A T Command protocol.
COMSPHERE 3900 Series Modems 5-12 November 1996 3910-A2-GN32-30 T able 5-3 (6 of 8) 391x Series A T Commands AT Command DCP LCD Command Sequence Description &V n View Configuration Options.
A T Command Set and S-Registers 5-13 3910-A2-GN32-30 November 1996 T able 5-3 (7 of 8) 391x Series A T Commands AT Command DCP LCD Command Sequence Description D n CTS Control. D0 Forced On. Forces CTS to always ON. D1 Standard RS232. D2 Wink When Disconnect.
COMSPHERE 3900 Series Modems 5-14 November 1996 3910-A2-GN32-30 T able 5-3 (8 of 8) 391x Series A T Commands AT Command DCP LCD Command Sequence Description T n No Data Disconnect T imer . T0 Disable. Tn Where n is a value from 1 to 255 in 1-minute increments.
A T Command Set and S-Registers 5-15 3910-A2-GN32-30 November 1996 S-Register Format S-Registers can be displayed and/or modified when the modem is in Command mode. T o display the value of an S-Register , issue the following command: TYPE: AT S n ? Where: n is the register number .
COMSPHERE 3900 Series Modems 5-16 November 1996 3910-A2-GN32-30 T able 5-4 (2 of 13) 391x Series S-Registers S-Register DCP LCD Command Sequence Description S5 Backspace Character . Register determines ASCII value used as the backspace (Backspace key).
A T Command Set and S-Registers 5-17 3910-A2-GN32-30 November 1996 T able 5-4 (3 of 13) 391x Series S-Registers S-Register DCP LCD Command Sequence Description S40 Auto Make Busy . Register determines if the modem goes of f-hook under certain conditions.
COMSPHERE 3900 Series Modems 5-18 November 1996 3910-A2-GN32-30 T able 5-4 (4 of 13) 391x Series S-Registers S-Register DCP LCD Command Sequence Description S44 Leased-Line Rate. Register determines the modem’s data rate and modulation scheme for operation on either 2-wire or 4-wire leased lines in either Answer or Originate mode.
A T Command Set and S-Registers 5-19 3910-A2-GN32-30 November 1996 T able 5-4 (5 of 13) 391x Series S-Registers S-Register DCP LCD Command Sequence Description S47 Auto Dial Standby . Register determines if the modem performs an automatic dial standby if in Dial Backup mode.
COMSPHERE 3900 Series Modems 5-20 November 1996 3910-A2-GN32-30 T able 5-4 (6 of 13) 391x Series S-Registers S-Register DCP LCD Command Sequence Description S53 V .54 Address. Identifies the address of the modem to be placed in a loopback test. Register has the following values: 0 = Disable 1–34 = Modem address The factory setting is Disable.
A T Command Set and S-Registers 5-21 3910-A2-GN32-30 November 1996 T able 5-4 (7 of 13) 391x Series S-Registers S-Register DCP LCD Command Sequence Description S61 CT1 1 1 Rate Control. Register determines if CT1 1 1 Rate is disabled, set for Fallback 1 or Fallback 2.
COMSPHERE 3900 Series Modems 5-22 November 1996 3910-A2-GN32-30 T able 5-4 (8 of 13) 391x Series S-Registers S-Register DCP LCD Command Sequence Description S66 NMS Call Messages.
A T Command Set and S-Registers 5-23 3910-A2-GN32-30 November 1996 T able 5-4 (9 of 13) 391x Series S-Registers S-Register DCP LCD Command Sequence Description S72 RTS Antistreaming.
COMSPHERE 3900 Series Modems 5-24 November 1996 3910-A2-GN32-30 T able 5-4 (10 of 13) 391x Series S-Registers S-Register DCP LCD Command Sequence Description S82 V .32bis Autorate (Leased Line). Register determines if Autorating is used on leased lines when connected in V .
A T Command Set and S-Registers 5-25 3910-A2-GN32-30 November 1996 T able 5-4 (1 1 of 13) 391x Series S-Registers S-Register DCP LCD Command Sequence Description S89 V .42 Automatic Request for Retransmission (ARQ) Window Size Increase. Register allows the ARQ window size to be set to a value from six frames to fifteen frames.
COMSPHERE 3900 Series Modems 5-26 November 1996 3910-A2-GN32-30 T able 5-4 (12 of 13) 391x Series S-Registers S-Register DCP LCD Command Sequence Description S92 V .29 Train On Data. When enabled, the modem receiver can train based upon the incoming data or a training sequence from the distant modem.
A T Command Set and S-Registers 5-27 3910-A2-GN32-30 November 1996 T able 5-4 (13 of 13) 391x Series S-Registers S-Register DCP LCD Command Sequence Description S97 Reduced Asynchronous Buffer Size. Register limits the modem’ s buffer size to a maximum of 20 characters.
6-1 3910-A2-GN32-30 November 1996 Dial Access Security Chapter 6, Dial Access Security , is not available for viewing online because it contains security-sensitive information.
A-1 3910-A2-GN32-30 November 1996 Menu T ree Overview A-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3900 Series Modems A-2 November 1996 3910-A2-GN32-30 J J JJ J Displays current status of modem along with data rate and error control mode. “Status” Status Configure PList Ld EditArea fr.
Menu T ree A-3 3910-A2-GN32-30 November 1996 Y z z Y Y Y Y Y Y Y Y Y Y Y z Y F F J J J J J from previous page Control SubHS Call_Setup Tlk/Data Remote Security T est (Dial Backup only) Dial Answer Cha.
B-1 3910-A2-GN32-30 November 1996 T roubleshooting Overview B-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview This appendix points out basic problems that can occur when operating a 391x Series modem.
COMSPHERE 3900 Series Modems B-2 November 1996 3910-A2-GN32-30 T able B-2 Leased-Line Operation Symptom Action The modems do not train-up on leased lines. V erify that the correct cabling is used for your application. Refer to Chapter 2, Modem Installation .
T roubleshooting B-3 3910-A2-GN32-30 November 1996 T able B-4 Modem — DTE Connection Symptom Action The modem does not accept or echo back A T commands. V erify that the cable between the Async port of the DTE and the modem is a standard RS-232 cable.
COMSPHERE 3900 Series Modems B-4 November 1996 3910-A2-GN32-30 T able B-5 (1 of 2) Modem — VF Connection Symptom Action The modem does not receive a dial tone. Attach a telephone directly to the telephone line to verify that a dial tone exists. Make sure the VF line is connected to the modem’ s rear jack labeled DIAL.
T roubleshooting B-5 3910-A2-GN32-30 November 1996 T able B-5 (2 of 2) Modem — VF Connection Symptom Action The modem dials but does not connect. If the modem is operating behind a PBX, determine if a 9 and comma are needed before the telephone number .
C-1 3910-A2-GN32-30 November 1996 Pin Assignments Overview C-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EIA-232-D Pin Assignments C-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3900 Series Modems C-2 November 1996 3910-A2-GN32-30 EIA-232-D Pin Assignments T able C-1 lists the EIA-232-D pin assignments for the modem. T able C-1 EIA-232-D Pin Assignments Pin Name EIA.
Pin Assignments C-3 3910-A2-GN32-30 November 1996 VF Connector Pin Assignments T able C-2 lists the connector pin assignments for Model 3910 modular jacks as well as the pin assignments for the TELCO jacks.
COMSPHERE 3900 Series Modems C-4 November 1996 3910-A2-GN32-30 Auxiliary Cables Not Supplied T o add an external telephone to your modem, use an external “Y” cable to connect the phone line to both the modem and the telephone (Figure C-2). Figure C-2.
Pin Assignments C-5 3910-A2-GN32-30 November 1996 For 2-wire leased-line connections to a JM8 network interface, use an 8-position to 6-position crossover cable (Figure C-3) according to the following.
COMSPHERE 3900 Series Modems C-6 November 1996 3910-A2-GN32-30 T o connect a Model 3910 port to another modem’ s EIA-232-D interface, use a 25-pin crossover cable (Figure C-4).
D-1 3910-A2-GN32-30 November 1996 CCITT V .25bis Dialing Commands and Responses Overview D-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Call Request Commands D-2 . . . . . . . . . . . . . . .
COMSPHERE 3900 Series Modems D-2 November 1996 3910-A2-GN32-30 Call Request Commands Call Request commands are issued from the DTE to the modem and are responsible for initiating dial calls. Call Request commands include Call Request with Number Provided (CRN) and Call Request with Stored Memory Address Provided (CRS).
CCITT V .25bis Dialing Commands and Responses D-3 3910-A2-GN32-30 November 1996 ET is similar to the Call Failure Messages Busy Signal and T runk Busy and the result code BUSY . NS is similar to the Common Operational Message Invalid Number and the result code ERROR.
COMSPHERE 3900 Series Modems D-4 November 1996 3910-A2-GN32-30 Connect Incoming Call (CIC) The CIC command forces the modem to cancel any DIC commands and answer an incoming call. This command is only valid when the DTE issues a DIC command. CIC must be issued within 10 seconds after sending a DIC.
CCITT V .25bis Dialing Commands and Responses D-5 3910-A2-GN32-30 November 1996 Request List of Stored Numbers (RLN) The Request List of Stored Numbers (RLN) command displays telephone numbers stored in the modem’ s directory location.
COMSPHERE 3900 Series Modems D-6 November 1996 3910-A2-GN32-30 Command Response A Command Response indicates that the command entered was a valid or invalid entry . Command Response includes V alid (V AL) and Invalid (INV). V alid (V AL) The V AL response indicates that the modem has accepted the V .
CCITT V .25bis Dialing Commands and Responses D-7 3910-A2-GN32-30 November 1996 T able D-1 V .25bis Commands V .25bis Command Description A T Command/ S-Register Equivalent Call Request Commands CRN C.
COMSPHERE 3900 Series Modems D-8 November 1996 3910-A2-GN32-30 T able D-2 lists V .25bis response messages supported by the 391x Series modems. T able D-2 V .
E-1 3910-A2-GN32-30 November 1996 ASCII Character T able Overview E-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3900 Series Modems E-2 November 1996 3910-A2-GN32-30 T able E-1 (2 of 4) ASCII Characters Hexadecimal ASCII V alue Key Control Character Decimal ASCII V alue 17 023 ETB CTRL-W 18 024 CAN CTR.
ASCII Character T able E-3 3910-A2-GN32-30 November 1996 T able E-1 (3 of 4) ASCII Characters Hexadecimal ASCII V alue Key Control Character Decimal ASCII V alue 3B 059 ; 3C 060 < 3D 061 = 3E 062 &.
COMSPHERE 3900 Series Modems E-4 November 1996 3910-A2-GN32-30 T able E-1 (4 of 4) ASCII Characters Hexadecimal ASCII V alue Key Control Character Decimal ASCII V alue 5F 095 - 60 096 ( 61 097 a 62 09.
F-1 3910-A2-GN32-30 November 1996 Default Configuration Options Overview F-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview T able F-1 in this appendix lists all default configuration options for the factory preset configurations.
COMSPHERE 3900 Series Modems F-2 November 1996 3910-A2-GN32-30 T able F-1 (1 of 7) Factory Default Configuration Options Configuration Option Sync Leased Default Settings Async Leased Default Settings.
Default Configuration Options F-3 3910-A2-GN32-30 November 1996 T able F-1 (2 of 7) Factory Default Configuration Options Configuration Option Sync Dial Default Settings UNIX Dial Default Settings Asy.
COMSPHERE 3900 Series Modems F-4 November 1996 3910-A2-GN32-30 T able F-1 (3 of 7) Factory Default Configuration Options Configuration Option Sync Dial Default Settings UNIX Dial Default Settings Asyn.
Default Configuration Options F-5 3910-A2-GN32-30 November 1996 T able F-1 (4 of 7) Factory Default Configuration Options Configuration Option Sync Dial Default Settings UNIX Dial Default Settings Asy.
COMSPHERE 3900 Series Modems F-6 November 1996 3910-A2-GN32-30 T able F-1 (5 of 7) Factory Default Configuration Options Configuration Option Sync Dial Default Settings UNIX Dial Default Settings Async Dial Default Settings TMp Default Settings Async Leased Default Settings Sync Leased Default Settings V .
Default Configuration Options F-7 3910-A2-GN32-30 November 1996 T able F-1 (6 of 7) Factory Default Configuration Options Configuration Option Sync Dial Default Settings UNIX Dial Default Settings Asy.
COMSPHERE 3900 Series Modems F-8 November 1996 3910-A2-GN32-30 T able F-1 (7 of 7) Factory Default Configuration Options Configuration Option Sync Dial Default Settings UNIX Dial Default Settings Asyn.
G-1 3910-A2-GN32-30 November 1996 Sample Configuration Overview G-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Point-to-Point G-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3900 Series Modems G-2 November 1996 3910-A2-GN32-30 Point-to-Point Figure G-1 shows a sample configuration for point-to-point applications. 3910 A Cable 1 Cable 1 Cable 2 Cable 2 Leased 19200(V32t) 19200(V32t) TX TX DTE (Sync) DTE (Sync) 3910 B Figure G-1.
Sample Configuration G-3 3910-A2-GN32-30 November 1996 Multipoint Figure G-2 shows a sample configuration for multipoint applications. TMp control modems can accept mixed inbound rates from tributary modems. For example, one inbound link may be configured for 14.
COMSPHERE 3900 Series Modems G-4 November 1996 3910-A2-GN32-30 Point-to-Point with Automatic Dial Backup Figure G-3 shows a sample configuration for point-to-point applications with automatic dial backup. Cable 1 Cable 1 Cable 2 Cable 2 Leased 19200(V32t) 19200(V32t) TX TX Cable 3 Cable 3 Dial DTE (Sync) DTE (Sync) 3910 A 3910 B Figure G-3.
Sample Configuration G-5 3910-A2-GN32-30 November 1996 Point-to-Point with Network Management Figure G-4 shows a sample configuration for point-to-point applications with network management.
COMSPHERE 3900 Series Modems G-6 November 1996 3910-A2-GN32-30 Carrier with Network Management Figure G-5 shows a sample configuration for COMSPHERE 3000 Series Carrier applications with network management.
Sample Configuration G-7 3910-A2-GN32-30 November 1996 Extended Multipoint Figure G-6 shows a sample configuration for extended multipoint applications.
COMSPHERE 3900 Series Modems G-8 November 1996 3910-A2-GN32-30 Configuration Options 3920 A Use Sync Leased (Answer) default configuration options with the following exception: Rate at 19.
Sample Configuration G-9 3910-A2-GN32-30 November 1996 Extended Diagnostics Figure G-7 shows a sample configuration for extended diagnostics. Figure G-7. Sample Configuration Extended Diagnostics Configuration Options 3910 A Use Sync Leased (Answer) default configuration options with the following exception: Network position Set to Control.
COMSPHERE 3900 Series Modems G-10 November 1996 3910-A2-GN32-30 3910 D,F ,H Use Sync Leased (Answer) default configuration options with the following exceptions: TX Clock Sour ce Set to RXC_Loop. 3910 E,G Use Sync Leased (Answer) default configuration options with the following exceptions: Diagnostic Connection Set to Modem (DC).
H-1 3910-A2-GN32-30 November 1996 Equipment List Equipment Feature/ Part Number Model 3910 3910-A1-XXX Model 391 1 391 1-B1-XXX 6-position, 4-wire modular cord, 7-foot length 125-0067-0031 8-position, 8-wire modular cord, 14-foot length 125-0053-1431 Universal Power Supply 327-0074-XXXX 3600 Hubbing Device 3600-F3-300 EIA-323-D/V .
GL-1 3910-A2-GN32-30 November 1996 Glossary Active (Operating) A configuration area containing configuration options currently in use by the modem. Anytime a power cycle occurs or a reset is performed or a save is issued using the DCP , this area is updated with the contents of Active (Saved).
COMSPHERE 3900 Series Modems GL-2 November 1996 3910-A2-GN32-30 automatic dial backup When leased-line operation fails, this function forces the modem to dial the telephone number stored in directory location 1.
Glossary GL-3 3910-A2-GN32-30 November 1996 CCITT An advisory committee (Consultative Committee on International T elephone and T elegraph) established by the United Nations to recommend communications standards and policies. CCITT V .22 A standard for modems operating full-duplex over dial networks at 1200 bps.
COMSPHERE 3900 Series Modems GL-4 November 1996 3910-A2-GN32-30 constant carrier mode The modem transmits a carrier signal constantly , regardless of R TS. Control Channel (CC) The diagnostic interface between an NMS and a network device. control modem A control modem polls downstream tributary modems across the analog channel.
Glossary GL-5 3910-A2-GN32-30 November 1996 dial command modifiers A modifier used in the dial string that instructs the modem how to process a dialed telephone number . dial line A communications circuit that is established by a switched circuit connection in the dial network.
COMSPHERE 3900 Series Modems GL-6 November 1996 3910-A2-GN32-30 extended network The extension of a circuit where the tributary DCE is connected to a downstream (extended) control DCE.
Glossary GL-7 3910-A2-GN32-30 November 1996 leased line A private telephone line connection exclusively for the user . No dialing is necessary . LED Light Emitting Diode. A light or status indicator on the DCP that glows in response to the presence of a certain condition (e.
COMSPHERE 3900 Series Modems GL-8 November 1996 3910-A2-GN32-30 NMS Network Management System. A set of diagnostic and configuration management tools for a data communication network, consisting of software programs and dedicated computer hardware. off-hook A telephone or modem is being used.
Glossary GL-9 3910-A2-GN32-30 November 1996 register A part of the modem’ s memory that contains values that determine the modem’ s operating characteristics.
COMSPHERE 3900 Series Modems GL-10 November 1996 3910-A2-GN32-30 Time Division Multiplexer (TDM) A device that enables the simultaneous transmission of multiple independent data streams into a single high-speed data stream by simultaneously sampling the independent data streams and combining these samples to form the high-speed stream.
Index-1 3910-A2-GN32-30 November 1996 Index A Abort (test), 3-46–3-47 ac power requirements, 1-9 Active (Operating) configurations, 4-1 Active (Saved) configurations, 4-1 address, network management.
COMSPHERE 3900 Series Modems Index-2 November 1996 3910-A2-GN32-30 C cables, 2-4, 2-5, H-1 Call Setup branch, 3-8, 3-54–3-62 Canadian government requirements, 1-7 Clone Remote, 3-36–3-42 compatibi.
Index Index-3 3910-A2-GN32-30 November 1996 Dial Line configuration options group, 4-30–4-32 digital loopback, 3-49–3-51 dimensions, 1-9 directory , telephone number , 3-59–3-62 disconnecting a .
COMSPHERE 3900 Series Modems Index-4 November 1996 3910-A2-GN32-30 H handshaking sequence, 3-63, 3-64 hang up, 3-56–3-57 hardware part number (HPt #), 3-20 HDLC, 4-20, D-1 Health and Status definiti.
Index Index-5 3910-A2-GN32-30 November 1996 M Make Busy , 3-34 manual dial. See T alk/Data menu structure, 3-8 quick configuration display , 3-14 tree, A-1–A-3 messages LCD, 3-9–3-14, 3-23–3-24 .
COMSPHERE 3900 Series Modems Index-6 November 1996 3910-A2-GN32-30 R rates automatic control, 4-35 dial line, 1-10, 4-30, 5-17 leased line, 1-10, 4-34, 5-18 rear connector plate, 1-4 rear panel connec.
Index Index-7 3910-A2-GN32-30 November 1996 T T alk/Data branch, 3-8, 3-62–3-64 telephone, external, 3-62, C-4 technical specifications, 1-8–1-10 telephone, external, 3-62, C-4 telephone numbers d.
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Paradyne 3910をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはParadyne 3910の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Paradyne 3910の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Paradyne 3910で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Paradyne 3910を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はParadyne 3910の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Paradyne 3910に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちParadyne 3910デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
