Manuale d’uso / di manutenzione del prodotto 239 T1 HDSL4 del fabbricante ADTRAN
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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 ®.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il ADTRAN 239 T1 HDSL4 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del ADTRAN 239 T1 HDSL4 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso ADTRAN 239 T1 HDSL4 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul ADTRAN 239 T1 HDSL4 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il ADTRAN 239 T1 HDSL4, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del ADTRAN 239 T1 HDSL4.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il ADTRAN 239 T1 HDSL4. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo ADTRAN 239 T1 HDSL4 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
