Paradyneメーカー7511の使用説明書/サービス説明書
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TM 1 751 1-A2-GN10-10 January 1999 Model 751 1 Dual DSU Startup Instructions Document Number 751 1-A2-GN10-10 January 1999 Pr oduct Documentation on the W orld W ide W eb We provide complete product documentation online. This lets you search the documentation for specific topics and print only what you need, reducing the waste of surplus printing.
2 751 1-A2-GN10-10 January 1999 Cables Y ou May Need to Order Y ou will need cables to connect your Network Interface Module (NIM) to the network and your 751 1 DSUs to DTEs. For further information refer to the documentation shipped with your NIM, and Appendix A, Cables and Pin Assignments, in the User ’s Guide.
3 751 1-A2-GN10-10 January 1999 S1 97-15396 1 2 3 4 5 6 7 8 ON 1 2 3 4 5 6 7 8 ON 1 2 3 4 5 6 7 8 ON 1 2 3 4 5 6 7 8 ON 1 2 3 4 5 6 7 8 ON S2 S3 S4 S5 Figure 1.
4 751 1-A2-GN10-10 January 1999 T able 1. Configuration Options (2 of 5) Switch Options and Usage Default in Bold TX Timing Source S1-2 & S1-3 (DSU A) S3-2 & S3-3 (DSU B) S1 S2 S3 S4 DSU A DSU B ON ON ON ON The timing source for the DSU. Off Off DDS For DDS, both switches must be Off.
5 751 1-A2-GN10-10 January 1999 T able 1. Configuration Options (3 of 5) Switch Options and Usage Default in Bold 64CC Data Scrambler S1-6 (DSU A) S3-6 (DSU B) S1 S2 S3 S4 DSU A DSU B ON ON ON ON Determines whether the DSU scrambles data to minimize the possibility of the remote DSU falsely recognizing a loopback command.
6 751 1-A2-GN10-10 January 1999 T able 1. Configuration Options (4 of 5) Switch Options and Usage Default in Bold CTS S2-1 & S2-2 (DSU A) S4-1 & S4-2 (DSU B) S1 S2 S3 S4 DSU A DSU B ON ON ON ON Determines the operation of interchange circuit CT106, Clear to Send (CTS).
7 751 1-A2-GN10-10 January 1999 T able 1. Configuration Options (5 of 5) Switch Options and Usage Default in Bold DSR S2-5 (DSU A) S4-5 (DSU B) S1 S2 S3 S4 DSU A DSU B ON ON ON ON Determines the operation of interchange circuit CT107, Data Set Ready (DSR).
8 751 1-A2-GN10-10 January 1999 Installing the Rear Connector Plate Procedur e T o install the rear connector plate: 1. At the rear of the carrier , place the tab on the connector plate in its slot in the carrier ’s backplane. The connector plate must use the same slot position intended for the DSU card.
9 751 1-A2-GN10-10 January 1999 Installing the DSU Card Procedur e T o install the Model 751 1 Dual DSU: 1. Using a Phillips screwdriver , loosen the screw holding the circuit pack lock. Rotate the lock to the open position and open the latch. Circuit Card Guides Circuit Pack Lock Latch Open (Unlocked) Closed (Locked) 495-14813 2.
10 751 1-A2-GN10-10 January 1999 495-14797 3. Slide the circuit card into the slot and press until the connectors are seated firmly into the back of the carrier . 4. If power is applied to the carrier: — All LEDs on the card light up momentarily . — The card completes its power-up self-test.
11 751 1-A2-GN10-10 January 1999 Installing the Network and DTE Cables Procedur e T o install the cables: 1. Note the location of the 751 1 Dual DSU circuit cards in the carrier (Slots 1–8, Slots 9–16, or all slots). 2. Connect network cables to the appropriate NIM and backplane connector according to the following table.
12 751 1-A2-GN10-10 January 1999 T r oubleshooting If the 751 1 Dual DSU does not turn on the OK LED after its power-up self-test, refer to the following table. Symptom Possible Cause Recommendations No power , or LEDs are not solidly lit. The power supply to the carrier has failed.
13 751 1-A2-GN10-10 January 1999 Symptom Recommendations Possible Cause Not receiving data; DSU is not responding. DDS line rate has changed Excessive BPVs Excessive loop loss 1. V erify that your subscriber loop is running at 56 kbps or 64 kbps CC.
14 751 1-A2-GN10-10 January 1999 4. Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous high voltage points or other risks. Refer all servicing to qualified service personnel. 5. General purpose cables are provided with this product.
15 751 1-A2-GN10-10 January 1999 Government Requir ements Certain governments require that instructions pertaining to connection to the telephone network be included in the installation and operation manual. Specific instructions are listed in the following sections.
16 751 1-A2-GN10-10 January 1999 customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations. Repairs to certified equipment should be coordinated by a representative designated by the supplier .
デバイスParadyne 7511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 7511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 7511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 7511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 7511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。
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ですが、ユーザガイドが果たす重要な役割の一つは、Paradyne 7511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 7511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。