Paradyneメーカー3166 DSUの使用説明書/サービス説明書
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ACCULINK 3166 DSU/CSU USER’S GUIDE Document No. 3166-A2-GB20-10 November 1998.
Printed on recycled paper A 3166-A2-GB20-10 November 1998 Copyright 1998 Paradyne Corporation. All rights reserved. Printed in U.S.A. Notice This publication is protected by federal copyright law .
Important Information B 3166-A2-GB20-10 November 1998 Important Safety Instructions 1. Read and follow all warning notices and instructions marked on the product or included in the manual. 2. Slots and openings in the cabinet are provided for ventilation.
Important Information C 3166-A2-GB20-10 November 1998 EMI W arnings ! W ARNING: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules.
Important Information D 3166-A2-GB20-10 November 1998 Government Requirements and Equipment Return Certain governments require that instructions pertaining to CSU connection to the telephone network be included in the installation and operation manual.
Important Information E 3166-A2-GB20-10 November 1998 Canada NOTICE T O USERS OF THE CANADIAN TELEPHONE NETWORK The Industry Canada label identifies certified equipment.
i 3166-A2-GB20-10 November 1998 Contents About This Guide Document Purpose and Intended Audience vii . . . . . . . . . . . . . . . . . . . . . . . . . Document Summary vii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents ii 3166-A2-GB20-10 November 1998 3 SDCP Operation Overview 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using the SDCP 3-1 . . . . . . . . . . . . . . . . . . . . . . .
Contents iii 3166-A2-GB20-10 November 1998 4 Monitoring and T esting Overview 4-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Self-T est Health 4-1 . . . . . . . . . . . . . . . .
Contents iv 3166-A2-GB20-10 November 1998 A SDCP Menu B T echnical Specifications Overview B-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C Configuration Options Overview C-1 . .
Contents v 3166-A2-GB20-10 November 1998 E SNMP MIB Objects Overview E-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MIB II (RFC 1213) E-2 . . . . . . . . . . . . . . . . . . . . .
Contents vi 3166-A2-GB20-10 November 1998 G Fr ont Panel Emulation Overview G-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installing Front Panel Emulation Software G-1 . . . . .
vii 3166-A2-GB20-10 November 1998 About This Guide Document Purpose and Intended Audience This operator ’s guide contains installation, operation, and maintenance information for the ACCULINK 3166 Data Service Unit (DSU)/Channel Service Unit (CSU). It is assumed that you are familiar with the operation of digital data communication equipment.
About This Guide viii 3166-A2-GB20-10 November 1998 Section Description Appendix E SNMP MIB Objects. Lists and describes the MIB support provided by the DSU/CSU. Appendix F IP Network Addressing Scenarios. Shows the use of IP addressing in sample networks.
About This Guide ix 3166-A2-GB20-10 November 1998 Refer ence Documents A T&T T echnical Reference 54016 A T&T T echnical Reference 6241 1 ANSI T1.
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1-1 3166-A2-GB20-10 November 1998 Intr oduction 1 Overview The ACCULINK R 3166 DSU/CSU acts as an interface between the T1 digital network and the customer premises equipment, converting signals received from the DTE (Data T erminal Equipment) to bipolar signals that can be transmitted over T1 lines.
Introduction 1-2 3166-A2-GB20-10 November 1998 Alarm Message Capability The DSU/CSU can be attached, either locally or remotely , to an ASCII terminal or printer to display or print alarm messages. Alarms can also be displayed on a PC that is using a terminal emulation package.
Introduction 1-3 3166-A2-GB20-10 November 1998 Physical Description The Model 3166 DSU/CSU consists of a circuit card with front panel, and a rear connector module.
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496-15104 2-1 3166-A2-GB20-10 November 1998 Installation 2 Important Instructions Read and follow all warning notices and instructions marked on the DSU/CSU or included in this guide. For a complete listing of the safety instructions, see Important Safety Instructions at the beginning of this guide.
Installation 2-2 3166-A2-GB20-10 November 1998 Installation Procedur e T o install the DSU and rear connector module: 1. At the rear of the carrier , set the tab on the rear connector module into one of the slotted grooves on the carrier ’s backplane.
Installation 2-3 3166-A2-GB20-10 November 1998 3. Using a Phillips screwdriver , loosen the screw holding the circuit pack lock and rotate the lock to the open position. Open the latch. Circuit Card Guides Circuit Pack Lock Latch Open (Unlocked) Closed (Locked) 495-14813 4.
Installation 2-4 3166-A2-GB20-10 November 1998 7. Attach a modular cable (not included) to the COM connector of the rear connector module. (See Appendix D, Pin Assignments , for detailed cable and connector information.) Connect the other end to a terminal or PC.
Installation 2-5 3166-A2-GB20-10 November 1998 9. Attach the network cable to the NET connector on the rear connector module. Connect the other end of the network cable to the connection provided by the telephone company . NET DIAGNOSTIC CHANNEL Network 98-16077 10.
Installation 2-6 3166-A2-GB20-10 November 1998 The power-up self-test begins when power is applied. During the power-up self-test, the Fail LED flashes, then all LEDs blink twice. When the test is complete, verify that the DSU/CSU is functional by observing that the OK and NET Sig LEDs are lit.
3-1 3166-A2-GB20-10 November 1998 SDCP Operation 3 Overview This chapter contains information for operating your DSU/CSU using the optional Shared Diagnostic Control Panel of the 3000 Series Carrier . It includes a description of the SDCP and sample procedures for configuring the DSU/CSU.
SDCP Operation 3-2 3166-A2-GB20-10 November 1998 LCD The LCD is used to display two types of data: Messages such as alarms, command/test completion, and action in progress SDCP menu tree infor.
SDCP Operation 3-3 3166-A2-GB20-10 November 1998 Use the Function (F1, F2, F3) keys to make selections from the choices presented on the second line of the LCD. When this line presents choices, it is generally divided into three sections, each displayed directly above one of the Function keys.
98-16081b System LEDs NET DSU/CSU 3166 Po r t 1 OK F ail T est Sig OOF Alrm EER DTR TXD RXD CTS RTS Select In Out Net Mon SDCP Operation 3-4 3166-A2-GB20-10 November 1998 LEDs There are twelve LEDs on the 3166 DSU/CSU front panel. A green LED indicates normal operation.
98-16081c Network Interf ace LEDs NET DSU/CSU 3166 Po r t 1 OK F ail T est Sig OOF Alrm EER DTR TXD RXD CTS RTS Select In Out Net Mon SDCP Operation 3-5 3166-A2-GB20-10 November 1998 T able 3-2. Network Interface (NET) LEDs Name Color Meaning Sig Green Monitors the signal being received from the network.
98-16081a Data Po r t LEDs NET DSU/CSU 3166 Po r t 1 OK F ail T est Sig OOF Alrm EER DTR TXD RXD CTS RTS Select In Out Net Mon SDCP Operation 3-6 3166-A2-GB20-10 November 1998 T able 3-3.
SDCP Operation 3-7 3166-A2-GB20-10 November 1998 Displaying Unit Identity The identity of the DSU/CSU (serial number , model number , software revision level, hardware revision level, and customer identification) is available through the Status branch of the SDCP menu (see Appendix A, SDCP Menu ).
SDCP Operation 3-8 3166-A2-GB20-10 November 1998 F1 Identity: Cust ID= xxxxxxxx F2 F3 F1 Identity: SRev= xx . xx . xx F2 F3 F1 Identity: CCA1= xxxx - xxx F2 F3.
SDCP Operation 3-9 3166-A2-GB20-10 November 1998 Setting Customer Identification The customer identification is the only identity number you can change. It is used to uniquely identify the DSU/CSU. Procedur e T o change the customer identification (CID): 1.
SDCP Operation 3-10 3166-A2-GB20-10 November 1998 Displaying LED Conditions The same conditions monitored by the front panel LEDs can also be monitored by the LED command. This command is most useful when the DSU/CSU is being accessed remotely (see Appendix G, Front Panel Emulation ).
SDCP Operation 3-1 1 3166-A2-GB20-10 November 1998 If you chose Prt1, the Port 1 LEDs screen lists the LED signals, two at a time, on the second line. A vertical bar at the left of the LED name indicates the condition is ON, while an underscore indicates the condition is Off.
SDCP Operation 3-12 3166-A2-GB20-10 November 1998 The configuration options are divided into functional groups. Appendix C contains a list of the configuration options and defaults.
SDCP Operation 3-13 3166-A2-GB20-10 November 1998 Displaying/Editing Configuration Options Procedur e T o display/edit configuration options: 1. From the top-level menu screen, select Cnfig. F1 D S U E S F Stat T est Cnfig F2 F3 2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key .
SDCP Operation 3-14 3166-A2-GB20-10 November 1998 The configuration options for the selected functional group appear on the SDCP one option at a time. The option name appears on Line 1 with the current value next to it. T o reach other options, use the Next and Previous selections to scroll forward and backward through the group of options.
SDCP Operation 3-15 3166-A2-GB20-10 November 1998 Saving Edit Changes Save edit changes to the Active area when you want those changes to take effect immediately . Save edit changes to the Customer area when you want to overwrite the existing Customer configuration options and store these changes for future use.
SDCP Operation 3-16 3166-A2-GB20-10 November 1998 Enabling the Communication Port Communication between the 3166 DSU/CSU and an external PC, ASCII device, SNMP manager , or async terminal interface (attached either locally or through an external modem) occurs through a communication (COM) port.
SDCP Operation 3-17 3166-A2-GB20-10 November 1998 The set of valid characters for control of the carrier external COM port device is as follows: The numbers: 0 –9 The lowercase letters: a–.
SDCP Operation 3-18 3166-A2-GB20-10 November 1998 T able 3-4. Contr ol Sequence Sequence ASCII HEX ^A or ^a SOH 0x01 ^B or ^b STX 0x02 ^C or ^c ETX 0x03 ^D or ^d EOT 0x04 ^E or ^e ENQ 0x05 ^F or ^f AC.
SDCP Operation 3-19 3166-A2-GB20-10 November 1998 Configuring the DSU/CSU for SNMP or T elnet Access T o configure the DSU/CSU for SNMP or T elnet access: Enable the SNMP agent or T elnet server within the DSU/CSU (see Appendix C, Configuration Options ).
SDCP Operation 3-20 3166-A2-GB20-10 November 1998 Selecting the Port The SNMP manager , T elnet device, external LAN adapter , or network device (e.g., a router) can be directly connected to the communications (COM) port. The COM port can support either synchronous or asynchronous PPP , or asynchronous SLIP at data rates of up to 19,200 bps.
SDCP Operation 3-21 3166-A2-GB20-10 November 1998 Setting the IP Address The IP address is the address used by the SNMP or T elnet system to access the DSU/CSU (see Appendix F, IP Network Addressing Scenarios ). For DSU/CSUs using PPP , the IP address can be negotiated if the network device (e.
SDCP Operation 3-22 3166-A2-GB20-10 November 1998 NOTE: Steps 8 and 9 describe the process for entering an IP address. This process applies to any IP address. 8. Press F2 (Edit) to edit the IP address. Y ou have the option of using F3 (Clear) to reset the IP address to the factory default 000.
SDCP Operation 3-23 3166-A2-GB20-10 November 1998 Selecting the Link Layer Protocol T wo link layer protocols, Point-to-Point Protocol (PPP) and Serial Line Internet Protocol (SLIP), are supported for connection to an external SNMP manager , T elnet device, or network device (e.
SDCP Operation 3-24 3166-A2-GB20-10 November 1998 5. Select Mgmt. F1 Edit: User Alarm Mgmt F2 F3 6. From the Mgmt Config screen, select Gen. F1 Mgmt Config: Gen T rap F2 F3 7. Press F1 (Next) until the Com Link configuration option appears. 8. Press F2 (PPP) or F3 (SLIP).
SDCP Operation 3-25 3166-A2-GB20-10 November 1998 5. Select Mgmt. F1 Edit: User Alarm Mgmt F2 F3 6. From the Mgmt Config screen, select Gen. F1 Mgmt Config: Gen T rap F2 F3 7. Press F1 (Next) until the CommunityName1 configuration option appears. 8. Press F2 (Edit) to edit the community name.
SDCP Operation 3-26 3166-A2-GB20-10 November 1998 12. Press F2 (Read) or F3 (R/W). F1 Access 1: Next Read R/W F2 F3 The Read selection allows read-only access (SNMP “Get”) to the accessible objects in the MIB when community name 1 is used. The R/W selection allows Read/W rite access (SNMP “Get” and “Set”) to the objects in the MIB.
SDCP Operation 3-27 3166-A2-GB20-10 November 1998 7. Press F2 (Enab) to enable trap messages over the SNMP management link. F1 SNMP T r ap: Next Enab Disab F2 F3 Selecting the Number of T rap Managers If you intend to issue traps to an SNMP manager(s) from this device, you must specify the number of SNMP managers that are to receive the traps.
SDCP Operation 3-28 3166-A2-GB20-10 November 1998 Configuring a Destination for SNMP T raps A destination must be configured for each SNMP trap manager specified. This configuration option is displayed for the number of trap managers specified by the Number of T rap Managers configuration option.
SDCP Operation 3-29 3166-A2-GB20-10 November 1998 Allocating Data Ports By using the configuration options, assign a specific port to DS0 channels on the network interface.
SDCP Operation 3-30 3166-A2-GB20-10 November 1998 Procedur e T o select the data port: 1. From the top-level menu screen, select Cnfig. 2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key . Use the scroll keys, if necessary .
SDCP Operation 3-31 3166-A2-GB20-10 November 1998 Block or ACAMI Assignment Method The Assign By configuration option screen appears after you select a port. Procedur e T o assign by the block or ACAMI method: 1. Press F2 for Block or F3 for ACAMI.
SDCP Operation 3-32 3166-A2-GB20-10 November 1998 4. The Start At screen displays the configuration option used to select the starting DS0 channel. The network channels appear on the screen. The following screen shows an example for the network interface.
SDCP Operation 3-33 3166-A2-GB20-10 November 1998 4. Line 1 displays the 24 channels for the network interface. Line 2 displays what is allocated to the DS0 channel shown in Line 1. Pressing the or key scrolls the channels onto the screen in groups of three.
SDCP Operation 3-34 3166-A2-GB20-10 November 1998 Selecting the T iming Source The DSU/CSU provides the ability to select a master clock (timing) source that is used to synchronize all of the T1 and data port interfaces on the DSU/CSU. The clock for each interface is at the appropriate rate for that interface (e.
SDCP Operation 3-35 3166-A2-GB20-10 November 1998 Establishing Access Security on the COM Port Although the password feature is available, it is not required as a factory default. If used, it ensures access security before device control is passed to a device connected to the COM port.
SDCP Operation 3-36 3166-A2-GB20-10 November 1998 Setting a Password In addition to establishing access security on a port (refer to the previous section, Establishing Access Security on the COM Port ) the password itself is set. Unless you specify otherwise, the password is null.
SDCP Operation 3-37 3166-A2-GB20-10 November 1998 Entering a Password to Gain Access Y ou are prompted to enter a password (up to 8 characters) when you are accessing a port whose Password configuration option is set (refer to the previous section, Setting a Password ).
SDCP Operation 3-38 3166-A2-GB20-10 November 1998 Acquiring/Releasing the User Interface Y ou can access the user interface from either the the COM port or the SDCP . The DSU/CSU allows only one user interface to be active at a time. The COM port is the default user interface at power-up or after a reset.
SDCP Operation 3-39 3166-A2-GB20-10 November 1998 The inactive interface displays an interface idle message after control has been released from the previously active interface and another interface has not become active.
SDCP Operation 3-40 3166-A2-GB20-10 November 1998 Resetting the DSU/CSU Use the Reset command to perform a power-on reset of the DSU/CSU. Procedur e T o reset the DSU/CSU: 1. From the top-level menu screen, press the key until the Ctrl selection appears on the screen.
4-1 3166-A2-GB20-10 November 1998 Monitoring and T esting 4 Overview The 3166 DSU/CSU can detect and report faults, and perform diagnostic tests. These features ensure that your DSU/CSU is giving you optimum performance in your network. Self-T est Health Use the Self-T est Health command to display the results of the power-up self-test.
Monitoring and T esting 4-2 3166-A2-GB20-10 November 1998 3. View the results of the last power-up self-test. If no problems were found during power-up, the following message appears. F1 ST est Health: Passed F2 F3 T able 4-1. Self-T est Health Messages Message Description Passed No problems were found during power-up.
Monitoring and T esting 4-3 3166-A2-GB20-10 November 1998 Device Health and Status Use the Device Health and Status branch to view the current health and status messages for the DSU/CSU. T able 4-2 lists these messages in priority order . Procedur e T o display device health and status: 1.
Monitoring and T esting 4-4 3166-A2-GB20-10 November 1998 T able 4-2. Device Health and Status Messages Message Description LOS at Net A Loss Of Signal condition (175 consecutive zeros) has been detected on the network interface. The condition is cleared when the density of ones to zeros received is 12.
Monitoring and T esting 4-5 3166-A2-GB20-10 November 1998 Performance Reports When the network interface is configured for ESF operation, network performance is continuously monitored and maintained in two sets of aggregate registers: Carrier Network Interface Registers (T elco) and User Network Interface Registers (User).
Monitoring and T esting 4-6 3166-A2-GB20-10 November 1998 4. From the User Registers screen: — Press F1 to view current registers (go to Step 5) — Press F2 to view 24-Hour T otals (go to Step 6) — Press F3 to view 15-Minute Interval Registers (go to Step 7) F1 User Registers: Cur 24T ot Intvl F2 F3 5.
Monitoring and T esting 4-7 3166-A2-GB20-10 November 1998 9. When you have selected the number of the interval you want to display , press F3 (Dsply) to display the registers for the interval selected. Use the scroll keys to view additional register information.
Monitoring and T esting 4-8 3166-A2-GB20-10 November 1998 T able 4-3. Performance Registers (2 of 3) Register T otals Description Interval Description SES The number of severely errored seconds for the current interval. A severely errored second is any second with 320 or more CRC errors, or any second with one or more OOF events.
Monitoring and T esting 4-9 3166-A2-GB20-10 November 1998 T able 4-3. Performance Registers (3 of 3) Register T otals Description Interval Description StEvnt (Only valid for User registers.) The status events register records whether one or more of the following events have occurred at least once during the interval.
Monitoring and T esting 4-10 3166-A2-GB20-10 November 1998 Resetting Performance Registers Y ou can reset the performance registers via the ClrReg command in the Control branch of the front panel menu. Procedur e T o clear the performance registers: 1.
Monitoring and T esting 4-1 1 3166-A2-GB20-10 November 1998 Alarms The DSU/CSU can be attached, either locally or remotely , to an ASCII terminal or printer to display or print alarm messages. Alarms can also be displayed on a PC that is using a terminal emulation package.
Monitoring and T esting 4-12 3166-A2-GB20-10 November 1998 SNMP T raps SNMP traps are unsolicited messages that are sent from the DSU/CSU to an SNMP manager when the DSU/CSU detects certain pre-specified conditions. These traps enable the SNMP manager to monitor the state of the network.
Monitoring and T esting 4-13 3166-A2-GB20-10 November 1998 T able 4-4. Enterprise-Specific T rap Definitions T rap V alue Event enterpriseClockFail(1) The currently configured master clock source has failed. enterpriseSelfT estFail(2) A DSU/CSU hardware failure is detected at self-test.
Monitoring and T esting 4-14 3166-A2-GB20-10 November 1998 T r oubleshooting The DSU/CSU is designed to provide you with trouble-free service. However , T able 4-6 gives you some direction if a problem occurs. For problems other than those listed in the table, please contact your service representative.
Monitoring and T esting 4-15 3166-A2-GB20-10 November 1998 T able 4-6. T roubleshooting (2 of 2) Symptom Solutions Possible Cause A failure message appears followed by an 8-digit code ( x x x x x x x x ) Internal DSU/CSU problem. Record the 8-digit code, then contact your service representative.
Monitoring and T esting 4-16 3166-A2-GB20-10 November 1998 Remote Loopback T ests The Remote Loopback tests enable you to troubleshoot your circuit by sending the following to a far-end device: For Ne.
Monitoring and T esting 4-17 3166-A2-GB20-10 November 1998 Sending a Line Loopback Up or Down Procedur e T o send a Line Loopback Up or Down sequence on the network to a far-end DSU/CSU: 1. From the top-level menu screen, select T est. 2. From the T est screen, select Rlpbk.
Monitoring and T esting 4-18 3166-A2-GB20-10 November 1998 Sending a V .54/ANSI FT1 Activation/Deactivation Procedur e T o send a V .54 or ANSI FT1 Activation or Deactivation loopback sequence to the far-end DSU/CSU: 1. From the top-level menu screen, select T est.
Monitoring and T esting 4-19 3166-A2-GB20-10 November 1998 Local Loopback T ests The Local Loopback tests enable you to conduct circuit testing and fault isolation for the digital line.
Monitoring and T esting 4-20 3166-A2-GB20-10 November 1998 Starting a Line Loopback The Line Loopback command (LLB) loops the received signal on the network interface back to the network without change. 98-15946 CSU DSU NETWORK INTERF ACE ALL 1s LLB PO RT 1 Procedur e T o perform a Line loopback: 1.
Monitoring and T esting 4-21 3166-A2-GB20-10 November 1998 Starting a Payload Loopback The Payload Loopback command (PLB) loops the received signal on the network interface back to the network after it has passed through the framing circuitry of the DSU/CSU.
Monitoring and T esting 4-22 3166-A2-GB20-10 November 1998 Starting a Repeater Loopback The Repeater Loopback command (RLB) loops the signal being sent to the network back to the data port. The signal is looped back as close to the network interface as possible (after it has passed through the framing circuitry of the DSU/CSU).
Monitoring and T esting 4-23 3166-A2-GB20-10 November 1998 Starting a Data Channel Loopback The Data Channel Loopback command (DCLB) loops the data received from the network interface, for all DS0 channels allocated to Port 1, back to the network.
Monitoring and T esting 4-24 3166-A2-GB20-10 November 1998 Starting a Data T erminal Loopback The Data T erminal Loopback command (DTLB) loops the data received from Port 1, for all DS0 channels allocated to the port, back out of the port. This loopback occurs after the data passes through the port circuitry but before it reaches the T1 framer .
Monitoring and T esting 4-25 3166-A2-GB20-10 November 1998 Aborting Loopbacks The Abort Loopback command stops all loopback tests or any selected loopback test currently active on the DSU/CSU. Procedur e T o abort one or more loopback tests: 1. From the top-level menu screen, select T est.
Monitoring and T esting 4-26 3166-A2-GB20-10 November 1998 T est Patterns Use the T est Pattern commands to send, monitor , and abort test patterns. Available test patterns are: H QRSS – A quasi-random signal source approximating live data that can be monitored for logic errors (on the network and the data ports).
Monitoring and T esting 4-27 3166-A2-GB20-10 November 1998 5. From the Send screen, press the Function key that corresponds to the interface for which you want to send a test pattern. (NET does not appear for the 51 1 pattern.) F1 Send: Name NET Prt1 F2 F3 The T est Started screen appears.
Monitoring and T esting 4-28 3166-A2-GB20-10 November 1998 3. From the Patterns screen, select Mon. F1 Patterns: Abort Send Mon F2 F3 4. From the Patterns Mon screen, press F1 for QRSS or F2 for 51 1.
Monitoring and T esting 4-29 3166-A2-GB20-10 November 1998 3. From the Patterns screen, select Abort. F1 Patterns: Abort Send Mon F2 F3 4. From the Patterns Abort screen, press the desired Function key to abort either All active test patterns, active Send test patterns, or the active Monitor (Mon) test pattern.
Monitoring and T esting 4-30 3166-A2-GB20-10 November 1998 Lamp T est Use the Lamp T est commands to start and stop a test of the DSU/CSU front panel LCD and LEDs. Starting a Lamp T est Procedur e T o start a Lamp test: 1. From the top-level menu screen, select T est.
Monitoring and T esting 4-31 3166-A2-GB20-10 November 1998 6. When you are satisfied that all LEDs are lighting and the LCD is functioning properly , abort the Lamp test from the Lamp T est screen. If there is no activity on the DSU/CSU front panel for five minutes, the Device Health and Status screen appears automatically .
Monitoring and T esting 4-32 3166-A2-GB20-10 November 1998 Displaying DSU/CSU T est Status Use the T est Status command to display the active tests for the DSU/CSU. Status messages that can display on the front panel LCD are listed in T able 4-8 . Procedur e T o display test status: 1.
A-1 3166-A2-GB20-10 November 1998 SDCP Menu A DSU ESF Stat 98-16084a-01 DevHS ST est P erf T Stat LED ID T1 Pr t1 Pr t1 User T elco Cur 24T ot Intvl Fa r Near Cur 8T ot Intvl T est Rlpbk Lpbk Ptrns La.
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B-1 3166-A2-GB20-10 November 1998 T echnical Specifications B Overview The technical specifications for the 3166 DSU/CSU are listed in T able B-1. The fan module cooling requirements for the 3000 Series Carrier are provided in the COMSPHERE 3000 Series Carrier Installation Manual .
T echnical Specifications B-2 3166-A2-GB20-10 November 1998 T able B-1. ACCULINK Model 3166 DSU/CSU T echnical Specifications (2 of 2) Specifications Criteria PORT INTERF ACE Standards Rates EIA-530-A, V .35, RS-449, V .1 1 Nx64 – 64-1.536 Mb Nx56 – 56-1.
C-1 3166-A2-GB20-10 November 1998 Configuration Options C Overview The DSU/CSU configuration option tables contain a list of all configuration options and their available selections.
Configuration Options C-2 3166-A2-GB20-10 November 1998 Port Configuration Options T able C-1. Port Configuration Options (1 of 5) Port T ype: E530 (Factory 1) V .35 (Factory 2) Next E530 V .35 RS449 X.21 Prev Data Port T ype. Allows selection of the data port interface type.
Configuration Options C-3 3166-A2-GB20-10 November 1998 T able C-1. Port Configuration Options (2 of 5) Port LB: Disab (Factory 1) Both (Factory 2) Next Disab DTLB DCLB Both Prev Port (DTE) Initiated Loopbacks.
Configuration Options C-4 3166-A2-GB20-10 November 1998 T able C-1. Port Configuration Options (3 of 5) Tx Clock: Int Next Int Ext Prev Data Port T ransmit Clock.
Configuration Options C-5 3166-A2-GB20-10 November 1998 T able C-1. Port Configuration Options (4 of 5) Err Rate: 10E-4 Next 10E-4 10E-5 10E-6 10E-7 10E-8 10E-9 Prev Port Excessive Error Rate Threshold. Sets the error rate threshold that determines when an Excessive Error Rate (EER) condition is declared for a particular port.
Configuration Options C-6 3166-A2-GB20-10 November 1998 T able C-1. Port Configuration Options (5 of 5) Far-end: Disab Next Disab Maint Prev Far-End Performance Statistics. Specifies whether to monitor for far-end performance report messages (PRMs) and maintain far-end performance registers for a particular port.
Configuration Options C-7 3166-A2-GB20-10 November 1998 Network Interface Configuration Options T able C-2. Network Interface Configuration Options (1 of 3) NET Framing: ESF (Factory 1) D4 (Factory 2) Next D4 ESF Prev Network Line Framing Format. The framing format to be used on the network interface.
Configuration Options C-8 3166-A2-GB20-10 November 1998 T able C-2. Network Interface Configuration Options (2 of 3) NET LLB: Enab Next Enab Disab Prev Network Initiated Line Loopback (LLB). Allows initiation and termination of the LLB to be controlled by the receipt of LLB-Actuate and LLB-Release commands from the network (or remote DSU/CSU).
Configuration Options C-9 3166-A2-GB20-10 November 1998 T able C-2. Network Interface Configuration Options (3 of 3) Circuit Ident: Next Edit Clear Prev Network Circuit Identifier . Specifies the transmission vendor ’s circuit identifier for the purpose of facilitating troubleshooting.
Configuration Options C-10 3166-A2-GB20-10 November 1998 T able C-3. General Configuration Options (2 of 2) T stDuration: 10 Next Up Down Save Prev T est Duration. Specifies the duration (1 to 120 minutes) of user-initiated loopback and pattern tests.
Configuration Options C-1 1 3166-A2-GB20-10 November 1998 T able C-4. User Interface Configuration Options (2 of 6) Com Use: ASCII Next Mgmt ASCII T erm Prev Communication Port Use. Specifies how the communication port is used. Mgmt – Configures the communication port as the link to an SNMP or T elnet system.
Configuration Options C-12 3166-A2-GB20-10 November 1998 T able C-4. User Interface Configuration Options (3 of 6) ComConnected: Next Edit Clear Prev Carrier Communication Port Connect Indication String. Specifies the communication port’s connect indication string.
Configuration Options C-13 3166-A2-GB20-10 November 1998 T able C-4. User Interface Configuration Options (4 of 6) ComDisconnect: Next Edit Clear Prev Carrier Communication Port Disconnect String. Specifies the communication port’s disconnect string.
Configuration Options C-14 3166-A2-GB20-10 November 1998 T able C-4. User Interface Configuration Options (5 of 6) Ignore DTR: No Next Y es No Prev Communication Port Ignore DTR State. Specifies whether the DSU/CSU ignores the state of the Data T erminal Ready (DTR) input to the communication port.
Configuration Options C-15 3166-A2-GB20-10 November 1998 T able C-4. User Interface Configuration Options (6 of 6) TnDiscTm: 5 Next Up Down Save Prev T elnet Disconnect Time. Specifies the period of time (1 to 60 minutes) before the T elnet session disconnects due to inactivity .
Configuration Options C-16 3166-A2-GB20-10 November 1998 Alarm Configuration Options T able C-5. Alarm Configuration Options (1 of 3) Alrm Msg: Disab Next Disab Com Prev Alarm Messages. Controls the generation of alarm messages, which are routed to an ASCII terminal or printer attached to the communication port and/or the modem port.
Configuration Options C-17 3166-A2-GB20-10 November 1998 T able C-5. Alarm Configuration Options (2 of 3) DialOut: Disab Next Enab Disab Prev Alarm and T rap Dial Out. Controls whether generated alarm or trap messages initiate a call if the external communication port device connection has not already been established.
Configuration Options C-18 3166-A2-GB20-10 November 1998 T able C-5. Alarm Configuration Options (3 of 3) Err Rate: 10E-4 Next 10E-4 10E-5 10E-6 10E-7 10E-8 10E-9 Prev Excessive Error Rate Threshold. Sets the error rate threshold that determines if an Excessive Error Rate (EER) condition is declared.
Configuration Options C-19 3166-A2-GB20-10 November 1998 Management Configuration Options The Management configuration options are divided into two tables as follows: General Management Configuration Options ( T able C-6 ) Management T rap Configuration Options ( T able C-7 ) T able C-6.
Configuration Options C-20 3166-A2-GB20-10 November 1998 T able C-6. General Management Configuration Options (2 of 4) NMS n Acs: Read Next Read R/W Prev NMS Manager n Access T ype. Specifies the allowable type of access for an SNMP manager attempting to access the DSU/CSU’s MIB using community name 1.
Configuration Options C-21 3166-A2-GB20-10 November 1998 T able C-6. General Management Configuration Options (3 of 4) Access 1: Read Next Read R/W Prev Access 1. Specifies the type of access allowed for Community Name 1. This is the type of access allowed for external SNMP managers accessing objects in the MIB using Community Name 1.
Configuration Options C-22 3166-A2-GB20-10 November 1998 T able C-6. General Management Configuration Options (4 of 4) Com NetMask: Next Edit Clear Prev Subnet Mask for the Communication Port. Specifies the subnet mask for the communication port if the Com Use configuration option is set to Mgmt.
Configuration Options C-23 3166-A2-GB20-10 November 1998 T able C-7. Management T rap Configuration Options (1 of 2) Num T rap Mgrs: 1 Next 1 2 3 4 5 6 Prev Number of T rap Managers. Specifies the number of SNMP trap managers that are to receive traps for this unit.
Configuration Options C-24 3166-A2-GB20-10 November 1998 T able C-7. Management T rap Configuration Options (2 of 2) Entp T rap: Enab Next Enab Disab Prev Enterprise Specific T raps. Specifies whether enterpriseSpecific traps are enabled. Enab – Sends trap messages for enterpriseSpecific events to the currently configured trap manager(s).
D-1 3166-A2-GB20-10 November 1998 Pin Assignments D Overview The DSU/CSU is shipped with a power module and a VF cable. V arious other interconnecting cables are available. For cable feature numbers, refer to Appendix I, Equipment List . This appendix describes connector pin assignments and cables.
Pin Assignments D-2 3166-A2-GB20-10 November 1998 Figure D-1. T1 Line Interface Cable, RJ48C-to-RJ48C Figure D-2. T1 Line Interface Cable, RJ48C-to-DA15P.
Pin Assignments D-3 3166-A2-GB20-10 November 1998 EIA-530-A Port Interface Connector The EIA-530-A Port interface connector information is shown in T able D-2 .
Pin Assignments D-4 3166-A2-GB20-10 November 1998 EIA-530-A-to-RS449 Cable Interface The EIA-530-A-to-RS449 adapter cable ( Figure D-3 ) provides the RS449 interface shown in T able D-3 .
Pin Assignments D-5 3166-A2-GB20-10 November 1998 T able D-3. RS449 Cable Interface Signal Circuit Mnemonic CCITT Number Direction Pin Shield — — — 1 Signal Ground SG 102A — 19 Receive Ground .
Pin Assignments D-6 3166-A2-GB20-10 November 1998 EIA-530-A-to-V .35 Cable Interface The EIA-530-A-to-V .35 adapter cable ( Figure D-4 ) provides the V .
Pin Assignments D-7 3166-A2-GB20-10 November 1998 T able D-4. V .35 Cable Interface Signal CCITT Number Direction Pin Shield — — A Signal Common 102 — B T ransmitted Data 103 T o DSU/CSU P (A) S.
Pin Assignments D-8 3166-A2-GB20-10 November 1998 EIA-530-A-to-X.21 Cable Interface The EIA-530-A-to-X.21 adapter cable ( Figure D-5 ) provides the X.21 interface shown in T able D-5 . 2 14 3 16 17 9 4 19 8 10 7 24 11 2 9 4 11 6 13 3 10 5 12 8 7 14 TD-A TD-B RD-A RD-B RXC-A RXC-B RTS-A RTS-B RLSD-A RLSD-B SIG.
Pin Assignments D-9 3166-A2-GB20-10 November 1998 COM Port Interface The COM port connects to a PC for front panel emulation, to an ASCII terminal or printer for alarms, to an asynchronous terminal, to a network device (e.g., a router) for SNMP or T elnet applications, or to a LAN Adapter for SNMP or T elnet applications.
Pin Assignments D-10 3166-A2-GB20-10 November 1998 Figure D-6. COM Port-to-PC Cable Figure D-7. COM Port-to-T erminal/Printer Cable.
Pin Assignments D-1 1 3166-A2-GB20-10 November 1998 COM Port to Modem Cable Use a serial crossover cable when connecting the COM port to a modem or other external device. The following shows the pin assignments from the COM port to the external device.
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E-1 3166-A2-GB20-10 November 1998 SNMP MIB Objects E Overview This appendix describes the Management Information Base (MIB) objects that are supported by the DSU/CSU and provides a correlation between front panel commands and MIB objects (T able E-1).
SNMP MIB Objects E-2 3166-A2-GB20-10 November 1998 MIB II (RFC 1213) The objects defined by MIB II are organized into 10 different groups. The DSU/CSU implements only those groups where the semantics of the group are applicable to the implementation of a DSU/CSU.
SNMP MIB Objects E-3 3166-A2-GB20-10 November 1998 System Group – “sysObjectID” Object (system 2) This object provides the authoritative identification of the network management subsystem contained in the unit. This object displays the following object identifier: 3166 [ Company OID ].
SNMP MIB Objects E-4 3166-A2-GB20-10 November 1998 Interface Group – “ifIndex” Object (ifEntry 1) This object provides the index into the ifT able and typically into tables in other MIBs also. The values of the ifIndex object do not vary between models even though not all indexes are supported for a particular model.
SNMP MIB Objects E-5 3166-A2-GB20-10 November 1998 Interface Group – “ifSpeed” Object (ifEntry 5) This object provides the interface’s current bandwidth in bits per second. The value of this object for each interface is specified as follows: T1 Interfaces: 1,544,000 bps.
SNMP MIB Objects E-6 3166-A2-GB20-10 November 1998 Interface Group – Input Counters (objects ifEntry 10 to ifEntry 15) These objects collect statistics on the data received by the COM port when it is configured as an SNMP management link.
SNMP MIB Objects E-7 3166-A2-GB20-10 November 1998 IP Group – “ipForwarding” Object (ip 1) This object specifies whether the unit is acting as an IP gateway in respect to the forwarding of a datagram received by , but not addressed to, this unit.
SNMP MIB Objects E-8 3166-A2-GB20-10 November 1998 The following objects are defaulted if not specified in the set PDU used to add a route. ipRouteMetric1 – Defaulted to 1 hop. ipRouteMetric2 – Defaulted to current slot for carrier devices and –1 for standalone devices.
SNMP MIB Objects E-9 3166-A2-GB20-10 November 1998 IP Group – “ipRouteMetric2” Object (ipRouteEntry 4) The following values are displayed for the ipRouteMetric2 object.
SNMP MIB Objects E-10 3166-A2-GB20-10 November 1998 T ransmission Gr oup, MIB II Objects in the transmission group are supported on the network interface, the COM port, and the synchronous data port. The objects in the transmission group are not defined within MIB II, but rather through other Internet standard MIB definitions.
SNMP MIB Objects E-1 1 3166-A2-GB20-10 November 1998 Near End Group, DS1/E1 MIB The DS1 Near End Group consists of the following four tables: DS1 Configuration DS1 Current DS1 Interval .
SNMP MIB Objects E-12 3166-A2-GB20-10 November 1998 Near End Group – “dsx1LoopbackConfig” Object (dsx1ConfigEntry 9) This object specifies the loopback state of the T1 interface. Only the following values are supported by the DSU/CSU. dsx1NoLoop(1) – The T1 interface is not in a loopback state.
SNMP MIB Objects E-13 3166-A2-GB20-10 November 1998 Near End Group – “dsx1T ransmitClockSource” Object (dsx1ConfigEntry 12) This object specifies the timing source for the transmit clock for this T1 interface. This object differs from the MIB definition in that it is “read-only” (not read/write) for DSU/CSUs.
SNMP MIB Objects E-14 3166-A2-GB20-10 November 1998 Near End Group – The DS1 Interval T able Objects (dsx1IntervalEntry) The following DS1 interval table objects are provided for the network interface only . Objects in the table that are not listed are not supported and will return an error status if access is attempted.
SNMP MIB Objects E-15 3166-A2-GB20-10 November 1998 DS1 Fractional Group, DS1/E1 MIB The DS1 Fractional Group consists of the DS1 fractional table. This table (dsx1FracT able) is fully supported by the DSU/CSU and allows channel (time slots) to be mapped between the T1 interface and data port.
SNMP MIB Objects E-16 3166-A2-GB20-10 November 1998 General Port T able – “rs232PortT ype” Object (rs232PortEntry 2) This object is used to identify the port’s hardware type. Only the following values are supported by the DSU/CSU. rs422(3) – Used to identify a synchronous data port that is configured as EIA-530A or RS-449.
SNMP MIB Objects E-17 3166-A2-GB20-10 November 1998 Asynchronous Port T able, “rs232AsyncPortStopBits” (rs232AsyncPortEntry 3) This object specifies the number of stop bits supported. Only the following values are supported by the DSU/CSU. one(1) – One stop bit.
SNMP MIB Objects E-18 3166-A2-GB20-10 November 1998 Input Signal T able, RS-232-like MIB This table contains entries for the input signals that can be detected by the unit for each of the synchronous data ports. Input Signal T able – “rs232InSigName” (rs232InSigEntry 2) This object contains the identification of a hardware input signal.
SNMP MIB Objects E-19 3166-A2-GB20-10 November 1998 Generic-Interface MIB Extensions (RFC 1229) This generic-interface MIB is an experimental MIB that provides extensions to the generic interface group defined in MIB II.
SNMP MIB Objects E-20 3166-A2-GB20-10 November 1998 testSendV54Up – Sends a V54 up code to the remote unit. Only supported for the data ports. testSendV54Down – Sends a V54 down code to the remote unit. Only supported for the data ports. testSendFT1Up – ends a FT1 up code to the remote unit.
SNMP MIB Objects E-21 3166-A2-GB20-10 November 1998 Generic Interface T est T able – “ifExtnsT estCode” Object (ifExtnsT estEntry 6) This object contains a code that contains more specific information on the test result. This object is defined as an object identifier .
SNMP MIB Objects E-22 3166-A2-GB20-10 November 1998 Corr elation between Menu Commands and SNMP Objects T able E-1 provides a correlation between how a function is performed or status is displayed on the front panel and how the same function is accomplished using access to the SNMP database.
SNMP MIB Objects E-23 3166-A2-GB20-10 November 1998 T able E-1. SNMP MIB to Front Panel Command Cr oss-Reference (2 of 4) Front Panel Command SNMP MIB Object Stat–>T stat LLB T est Active PLB T e.
SNMP MIB Objects E-24 3166-A2-GB20-10 November 1998 T able E-1. SNMP MIB to Front Panel Command Cr oss-Reference (3 of 4) Front Panel Command SNMP MIB Object T est–>Lpbk–>DCLB–>Prt n T .
SNMP MIB Objects E-25 3166-A2-GB20-10 November 1998 T able E-1. SNMP MIB to Front Panel Command Cr oss-Reference (4 of 4) Front Panel Command SNMP MIB Object Cnfig–>Activ–>Edit–>User–.
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F-1 3166-A2-GB20-10 November 1998 IP Networking Addr ess Scenario F Overview This appendix describes a means of configuring 31xx Series devices in an Internet Protocol (IP) network to provide SNMP or T elnet connectivity .
IP Networking Address Scenario F-2 3166-A2-GB20-10 November 1998 The choice of a host address within a given subnet is completely arbitrary . Choose any legal host address for a given subnet, without regard to the local or remote devices.
IP Networking Address Scenario F-3 3166-A2-GB20-10 November 1998 Scenario 2 The second scenario ( Figure F-2 ) is a carrier communicating with standalone remotes. This scenario is similar to the previous one, treating the carrier devices as the daisy-chained devices.
IP Networking Address Scenario F-4 3166-A2-GB20-10 November 1998 Scenario 3 This third scenario ( Figure F-3 ) shows a local carrier connected to remote carriers that have remote standalones. Each carrier must be on a separate subnet but, as in the previous scenario, the carrier-remote combination can share a common subnet.
IP Networking Address Scenario F-5 3166-A2-GB20-10 November 1998 Scenario 4 An alternative addressing scheme, for the network is shown in Figure F-4 . This example uses a subnet mask of FF .FF .00.00 for the COM port in the central-site carrier (only), with all of the remaining subnet masks set to FF .
IP Networking Address Scenario F-6 3166-A2-GB20-10 November 1998 Scenario 5 Figure F-5 illustrates multiple COM ports on the same carrier connected to different NMSs.
G-1 3166-A2-GB20-10 November 1998 Fr ont Panel Emulation G Overview The 3166 DSU/CSU offers functionality through Front Panel Emulation software that is similar to that provided by the SDCP or the front panel of standalone 31xx DSU/CSUs. The 3166 DSU/CSU can either be locally or remotely attached to a 386 or higher PC that has at least 4 MB of RAM.
Front Panel Emulation G-2 3166-A2-GB20-10 November 1998 Procedur e T o install Front Panel Emulation software: 1. Insert the diskette into the appropriate drive. 2. Select F ile → Run from Program Manager menu (Windows 3.x) or R un... from the Start menu (Windows 95 or above) 3.
Front Panel Emulation G-3 3166-A2-GB20-10 November 1998 Starting Fr ont Panel Emulation If the DSU/CSU selected is not locally attached to the PC, you must first dial to the remote DSU/CSU before starting front panel emulation.
Front Panel Emulation G-4 3166-A2-GB20-10 November 1998 6. If you chose a Local destination, click on the Execute button. If you chose a Remote destination, enter the telephone number of the far-end DSU/CSU in the Phone Number field, then click on the Dial button.
H-1 3166-A2-GB20-10 November 1998 Asynchr onous T erminal Interface Operation H Overview Y ou can configure and manage the 3166 DSU/CSU from an asynchronous terminal that is configured for 9.
Asynchronous T erminal Interface Operation H-2 3166-A2-GB20-10 November 1998 Initiating an A TI Session Once the appropriate configuration option changes have been made and access is established, the Main Menu screen appears (unless a password is required).
Asynchronous T erminal Interface Operation H-3 3166-A2-GB20-10 November 1998 Menu Organization A TI menus differ from SDCP menus in that they typically do not use abbreviations and, in some cases, provide a more direct access to an option or function.
Asynchronous T erminal Interface Operation H-4 3166-A2-GB20-10 November 1998 Using A TI Scr eens There are three types of A TI screens. Menu screens list selections available through the menu system. Input screens allow you to edit or change information on a screen using screen function keys (T able H-1) or keyboard keys (T able H-2).
Asynchronous T erminal Interface Operation H-5 3166-A2-GB20-10 November 1998 T able H-2. Keyboard Keys Keyboard Key Usage Ctrl-a Moves the cursor between the Screen area and the Screen Function Keys area. Esc Returns to the previous screen. Ta b Moves the cursor to the next field.
Asynchronous T erminal Interface Operation H-6 3166-A2-GB20-10 November 1998 Setting Customer Identification The customer identification is used to uniquely identify the DSU/CSU. Procedur e T o change the customer identification (Customer ID): 1. From the Main Menu screen, select Control.
Asynchronous T erminal Interface Operation H-7 3166-A2-GB20-10 November 1998 Displaying LED Conditions The same conditions monitored by the front panel LEDs can also be monitored by the Display LEDs screen. This screen is most useful when the DSU/CSU is being accessed remotely .
Asynchronous T erminal Interface Operation H-8 3166-A2-GB20-10 November 1998 Changing Configuration Options Use the Configuration branch of the main menu to display or change DSU/CSU configuration options. Refer to Changing Configuration Options in Chapter 3, Operation , and Appendix C, Configuration Options .
Asynchronous T erminal Interface Operation H-9 3166-A2-GB20-10 November 1998 2. From the Load Configuration From screen, select a configuration option set to load ( Current , Customer 1 , Customer 2 , Default Factory 1 , or Default Factory 2 ). Y ou cannot edit the Default Factory configuration options, but you can display them.
Asynchronous T erminal Interface Operation H-10 3166-A2-GB20-10 November 1998 Saving Edit Changes Procedur e T o save edit changes: 1. From the last edit screen, select S ave.
Asynchronous T erminal Interface Operation H-1 1 3166-A2-GB20-10 November 1998 Establishing Access Security on a Port Although the password feature is available, it is not required. If used, it ensures access security before control is passed to a device connected to a port.
Asynchronous T erminal Interface Operation H-12 3166-A2-GB20-10 November 1998 Setting a Password In addition to establishing access security on a port (refer to the previous section, Establishing Access Security on a Port ), the password itself is set.
Asynchronous T erminal Interface Operation H-13 3166-A2-GB20-10 November 1998 Entering a Password to Gain Access When access security is required, the Login screen (Figure H-10) appears before you can access the Main Menu screen. The password must be entered.
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I-1 3166-A2-GB20-10 November 1998 Equipment List I Equipment Feature Number Model 3166 DSU/CSU 3166-B3-010 Front Panel Emulation Software 3100-C1-010 T1 Line Interface Cable, RJ48C-to-RJ48C (20 ft) 31.
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GL-1 3166-A2-GB20-10 November 1998 Glossary A test pattern consisting of a one (1) followed by seven zeros (on the network only). A rack-mounted device containing 17 slots in which to place circuit cards.
Glossary GL-2 3166-A2-GB20-10 November 1998 An 8-slot backplane that fit over one half of the open section of the 3000 Series Carrier . This is a passive assembly that provides interconnection capability between 3151 CSUs and 3161 DSU/CSUs and provides all interface connectors.
Glossary GL-3 3166-A2-GB20-10 November 1998 Communications port. A computer ’s serial communications port used to transmit to and receive data from a modem. The modem connects directly to this port. An identification used by an SNMP manager to grant an SNMP server access rights to a MIB.
Glossary GL-4 3166-A2-GB20-10 November 1998 A thin, flexible magnetic disk enclosed in a protective jacket. Download branch of the DSU/CSU menu tree. A process that transfers device firmware and software from a locally-attached PC to a device, or allows the duplication of firmware and software from a local device to a remote device.
Glossary GL-5 3166-A2-GB20-10 November 1998 End of Number . A discrepancy between a measured or computed value or condition and the true or specified value or condition. Errored Seconds. A second with one or more ESF error events (one or more CRC6 error events or OOFs).
Glossary GL-6 3166-A2-GB20-10 November 1998 Internet Protocol address. The address assigned to an internet host. International Standards Organization. International T elecommunications Union. The telecommunications agency of the United Nations, established to provide standardized communications procedures and practices.
Glossary GL-7 3166-A2-GB20-10 November 1998 A compact assembly functioning as a component in a larger system or unit. Maximum Request Unit. A configuration of data processing devices used for information exchange. The T1 network interface connector on the rear panel of the DSU/CSU.
Glossary GL-8 3166-A2-GB20-10 November 1998 A measure of the number of ones (marks, pulses) in relation to the total number of bits transmitted. Quasi-Random Signal Source. A test pattern simulating a random pattern of digital ones and zeros used to simulate normal transmission.
Glossary GL-9 3166-A2-GB20-10 November 1998 Serial Line Internet Protocol. Protocol for serial operation on an internet. Simple Network Management Protocol. Protocol for open networking management. Status branch of the DSU/CSU menu tree. Status Event Register .
Glossary GL-10 3166-A2-GB20-10 November 1998 V olts direct current. V oice Frequency . The part of the audio frequency range used to transmit voice sound (usually 300 Hz to 3400 Hz). This band is used by the modem for its modulated signal. Wide Area Network.
IN-1 3166-A2-GB20-10 November 1998 Index A abort lamp test, 4-31 loopback, 4-25 test patterns, 4-28 ACAMI method of channel allocation, 3-31 Access, Community Name, C-21 Activ (Active) configuration area, functional description, 3-1 1 addressing.
Index IN-2 3166-A2-GB20-10 November 1998 configuration options procedure for changing, 3-1 1 tables Alarm, C-16 General, C-9 Network Interface, C-7 Port, C-2 SNMP , C-19 User Interface, C-10 connector.
Index IN-3 3166-A2-GB20-10 November 1998 G Gen (General) Configuration branch example of use, 3-34 option table, C-9 I ID (Identity) branch, example of use, 3-7 indicators, 3-4 Invert Data, C-4 Invert.
Index IN-4 3166-A2-GB20-10 November 1998 network interface configuration options, C-7 failure message, 4-2 front panel LED indications, 3-5 functional description, 1-3 pin assignments, D-1 troubleshoo.
Index IN-5 3166-A2-GB20-10 November 1998 Shared Diagnostic Control Panel (SDCP), acquiring/releasing the user interface, 3-38 SNMP (Simple Network Management Protocol) agent, 1-2 configuration options.
Index IN-6 3166-A2-GB20-10 November 1998 V V .35 interface, D-7 V .54 Loop 2. See data channel loopback (DCLB) V .54 Loop 3. See data terminal loopback (DTLB) W warmStart trap, 4-12 X X.
デバイスParadyne 3166 DSUの購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Paradyne 3166 DSU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 3166 DSU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 3166 DSU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 3166 DSU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 3166 DSU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 3166 DSU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 3166 DSU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 3166 DSU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。
