ADTRANメーカーDE-4Eの使用説明書/サービス説明書
ページ先へ移動 of 19
1 Section 61245207L2-5, Issue 2 61245207L2-5C CONTENTS 1. GENERAL .................................................................. 1 2. INSTALLATION ....................................................... 2 3. CONNECTIONS ...........................
2 Section 61245207L2-5, Issue 3 61245207L2-5C C A U T I O N C A U T I O N ! SUBJECT TO ELECTROSTATIC DAMAGE OR DECREASE IN RELIABILITY. HANDLING PRECAUTIONS REQUIRED. The FT1 Digital Subscriber Loop (DSL) local loop operates as an independent subsystem, over a single twisted pair.
3 Section 61245207L2-5, Issue 2 61245207L2-5C Switch Function Description SW1-1 ...... Code Select ............................................ SW1-1 On selects B8ZS line code. SW1-1 Off selects AMI. Off .......... AMI On .......... B8ZS SW1-2 ...... Framing .
4 Section 61245207L2-5, Issue 3 61245207L2-5C Table 3. SW2 and SW3 Option Settings (Default settings are indicated in bold typeface) Switch Function Description SW3-4 ........... A/B Signaling for Channel 1 ....... Enables or Disables A/B Robbed Bit Signaling for Channel 1.
5 Section 61245207L2-5, Issue 2 61245207L2-5C FT1 DP Option Selections Configuration strap P1, illustrated in Figure 2 , selects FT1 DP settings. By selecting -190 V, the FT1 DP can power up to two FT1 repeaters and a locally-powered FNID.
6 Section 61245207L2-5, Issue 3 61245207L2-5C Figure 3. FT1 DP Edge Connector Wiring A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 A27 A28 A29 A30 A31 .
7 Section 61245207L2-5, Issue 2 61245207L2-5C 5. CONTROL PORT OPERATION The FT1 DP provides a faceplate-mounted DB-9 connector that supplies an RS-232 interface for connection to a controlling terminal. The pinout of the DB-9 is illustrated in Figure 5.
8 Section 61245207L2-5, Issue 3 61245207L2-5C space bar characters, which are used by the FT1 DP to determine the speed of the terminal. Once the speed has been determined, an Introductory Menu will appear, as illustrated in Figure 6 . From the Introductory Menu, the Main Menu may be selected.
9 Section 61245207L2-5, Issue 2 61245207L2-5C The Current System Status Screen, illustrated in Figure 8 , provides quick access to FT1 DP status information. The Elapsed Time display indicates the period of time since the unit began collecting performance information.
10 Section 61245207L2-5, Issue 3 61245207L2-5C The Performance History Screen displays 15-minute and 24-hour registers for several points in the circuit.
11 Section 61245207L2-5, Issue 2 61245207L2-5C Figure 11 depicts the Self-Test Options Screen. A test of the FT1-DP and the FNID may be initiated from this screen.
12 Section 61245207L2-5, Issue 3 61245207L2-5C The Troubleshooting Display, shown in Figure 13 , graphically depicts a DSL circuit. The unit monitors red, yellow, and blue alarm conditions in the circuit.
13 Section 61245207L2-5, Issue 2 61245207L2-5C 6. DSL DEPLOYMENT GUIDELINES The ADTRAN FT1 DSL system is designed to provide Fractional DS1 based services over loops designed to comply with Carrier Service Area (CSA) guidelines. CSA deployment guidelines are given below.
14 Section 61245207L2-5, Issue 3 61245207L2-5C 7. MAINTENANCE The ADTRAN FT1 DP requires no routine maintenance. In case of equipment malfunction, use the features supplied with the FT1 DP to help locate the source of the problem. ADTRAN does not recommend that repairs be performed in the field.
15 Section 61245207L2-5, Issue 2 61245207L2-5C Table 8. FT1 DP Product Specifications Loop Interface Modulation Type ............................... 2B1Q Mode ................................................. Full Duplex, Echo Cancelling Number of Pairs .
16 Section 61245207L2-5, Issue 3 61245207L2-5C.
A-1 Section 61245207L2-5, Issue 3 61245207L2-5C Appendix A FT1 Loopbacks GENERAL This Appendix is an overall reference to the loopback capabilities of the ADTRAN Fractional T1 system. Included in this Appendix is a description of the FT1 loopbacks and the methods for activating the FT1 loopbacks.
A-2 Section 61245207L2-5, Issue 3 61245207L2-5C There is one loopback available to the FT1 Repeaters. The FT1 Repeater Network loopback is a digital loopback toward the CO as shown in Figure A-4 . The loopbacks are initiated by the DDS latching loopback codes for NEI Position 1 (N1000001) for FT1 #1 or NEI Position 2 (N100001) for FT1 Repeater # 2.
A-3 Section 61245207L2-5, Issue 3 61245207L2-5C LOOPBACK ACTIVATION/DEACTIVATION This section describes loopback activation and deactivation methods for the ADTRAN Fractional T1 system. Loopback activation and deactivation is controlled with the push-button located on the front panel, through craft interface, or latching loopback codes.
デバイスADTRAN DE-4E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：
ADTRAN DE-4E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ADTRAN DE-4E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。ADTRAN DE-4E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。ADTRAN DE-4E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。
ADTRAN DE-4E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ADTRAN DE-4E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、ADTRAN DE-4E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ADTRAN DE-4E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。
