Instruction/ maintenance manual of the product 239 T1 HDSL4 ADTRAN
Go to page of 20
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 ®.
An important point after buying a device ADTRAN 239 T1 HDSL4 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought ADTRAN 239 T1 HDSL4 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data ADTRAN 239 T1 HDSL4 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, ADTRAN 239 T1 HDSL4 you will learn all the available features of the product, as well as information on its operation. The information that you get ADTRAN 239 T1 HDSL4 will certainly help you make a decision on the purchase.
If you already are a holder of ADTRAN 239 T1 HDSL4, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime ADTRAN 239 T1 HDSL4.
However, one of the most important roles played by the user manual is to help in solving problems with ADTRAN 239 T1 HDSL4. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device ADTRAN 239 T1 HDSL4 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
