ADTRANメーカー239 T1 HDSL4の使用説明書/サービス説明書
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239 T1 HDSL4 Repeater (H4R) Inst allation and Maintenance Practice Part Number - 61223445L1-5D ® 239 H4R 1223445L1 LP1 NET LP2 LP1 LP2 LL RL (Y) (G) / CUST CLEI: T1R6U87D_ _ October 200 4.
ii 61223445L1-5D 239 H4R Installation and Mainten ance Practice T r ademarks Any brand names and p roduct names included in this manual are trademarks, registered trade - marks, or trade names of their respective holders. T o the Holder of the Manual The contents of this publicatio n are current as of the date of publication.
239 H4R Installation and Mainten ance Practice 61223445L1-5D iii Revision History Conventions The following typographical conventio ns are used in this document : This font indicates a cross-reference link. First-time references to tables and figures are shown in this font .
iv 61223445L1-5D 239 H4R Installation and Mainten ance Practice Tr a i n i n g ADTRAN offers trainin g courses on our products . These courses include overviews on product features and functions while covering app lications of ADTRAN’ s product lines.
61223445L1-5D v Content s 1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. Description . . . . . . . . . . . . . . . . . . . .
vi 61223445L1-5D Tables 239 H4R Installation and Maintenance Practice This page is intentionally blank..
61223445L1-5D 1 239 T1 HDSL4 Repeater (H4R) 1. GENERAL This practice is an in stallation and maintenance guide for the ADTRAN ® 239 T1 HDSL4 Repea ter (H4R) (239 H4R). Figure 1 illustrates the 239 H4R (P/N 1223445L1) front panel. Figure 1. HDSL4 239 T1 HDSL4 Repeater (H 4R) 2.
2 61223445L1-5D Description 239 H4R Installation and Maintenance Practice Features The basic features of th e HDSL4 239 T1 HD SL4 Repeater (H4 R), include the following: • TC PAM line coding • Lig.
239 H4R Installation and Maintenance Practice Description 61223445L1-5D 3 to that anomaly. This number will also reflect the high est anomaly count seen, as it is possible to have more than one bad splice per circuit. This screen will report the worst (most frequently detected) anomaly.
4 61223445L1-5D Description 239 H4R Installation and Maintenance Practice Comp atibility The 239 H4 R is used in con junction with any T1.418 compliant span powering H4TU -C and H4TU-R. Compatible ADTRAN HDSL4 transceiver units are listed in Ta b l e 1 .
239 H4R Installation and Maintenance Practice Installation 61223445L1-5D 5 This device complies with Part 15 of the FCC rules. Operation is su bject to the following two conditi ons: 1. This device may not cause harmful interference. 2. This device must acc ept any interference received, in cluding interference that ma y cause undesired operation.
6 61223445L1-5D Connections 239 H4R Installation and Maintenance Practi ce 4. CONNECTIONS All connections are made th rough card edge connectors. Ta b l e 3 provides the card edge pin assignments. CAUTION The H4R dissipates a maximum of 5.4 watts. NOTE Ensure that the chassis ground is securely connected to the apparatus case.
239 T1 HDSL4 Repeater (H4R ) Installation and Maintenance Practice H4R Capacity Guidelines 61223445L1-5D 7 6. H4R CAP ACITY GUIDELINES The ADTRAN 239 H4R is designed for installa tion in a prewired apparatus case, and the capacity guidelines for deployment are de fined in T able 3 and T a ble 4.
8 61223445L1-5D H4R Capacity Guidelines 239 T1 HDSL4 Repeater (H4R) In stallation and Maintenance Practice T abl e 5. 239 H4R Capacit y Guidelines fo r Other Housings Manufacturer De scription Manuf a.
239 H4R Installation and Mainten ance Practice Front Panel LEDs 61223445L1-5D 9 7. FRONT PANEL LEDS The ADTRAN 239 H4 R provides front panel LE Ds to display status information. See Ta b l e 6 for a listing of the front panel LEDs and their indi cations.
10 61223445L1-5D Maintenance 239 H4R Installation and Maintenance Practi ce 8. MAINTENANCE The HDSL4 239 T1 HDSL4 Repeater (H4R) requires no ro utine maintenance for normal operation. In case of equipment malfunction, perform an in-band loopback fro m the Central Office.
239 H4R Installation and Maintenance Practice Specifications 61223445L1-5D 11 T able 7. 239 T1 HDSL4 Repe ater (H4R) S pecifications Specification Description Loop Interface Modulation T ype: Mode: Nu.
12 61223445L1-5D Specifications 239 H4R Installa tion and Maintenance Practi ce This page is intentionally blank..
61223445L1-5D A-1 Appendix A W arranty W ARRANTY AND CUST OMER SERVICE ADTRAN will replace or repair this pr oduct within the warranty period if it does not meet its published specifica- tions or fails while in service. W a rranty information can be found at www .
A-2 61223445L1-5D 239 H4R Installation and Mainten ance Practice ®.
デバイスADTRAN 239 T1 HDSL4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 239 T1 HDSL4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 239 T1 HDSL4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 239 T1 HDSL4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 239 T1 HDSL4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 239 T1 HDSL4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 239 T1 HDSL4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 239 T1 HDSL4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 239 T1 HDSL4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。
