Manuale d’uso / di manutenzione del prodotto AT-AR041 del fabbricante Allied Telesis
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Netw ork Ser vice Module Har dwar e Refer ence A T -AR040 A T -AR041 A T -AR042 A T -AR048.
Network Service Module Har dwar e Refer ence AT - A R 0 4 0 AT - A R 0 4 1 AT - A R 0 4 2 AT - A R 0 4 8 Download the complete document set from www .alliedtelesis.
Ne tw or k S e rv ice M od ul e H ard wa re R ef ere nc e Document Number C613-03022-00 REV K. © 2007 Allied T elesis, Inc. All rights r e served. No part of this publication may be repr oduced without prior written pe rmission fr om Allied T elesis, Inc.
Contents Devices Covered By This Docume nt . .................... ................... ................... ........ 4 Compatible Sw itches and Routers ....... ................... ................... .................... .... 4 A T- AR048 Su pport .....
4 Network Service Module C613-03022- 00 REV K Devices Cover ed By This Document This Har dware Reference i ncludes information on the following Network Service Modules (NSMs): ■ A T -AR040, four Por.
Ha rdw a re R e fe ren c e 5 C613-03022 -00 REV K Figure 1: Serial number label on the underside of a Rapier 24i Made in Singapore Model : A T -RP241-10 Part Number: 990-1 1934-10 Product Serial Numbe.
6 Network Service Module C613-03022- 00 REV K Har dware Overview This section provides an overview of th e har dware featur es of NSMs. NSMs are expansion options for switch and route r models with an NSM bay .
Ha rdw a re R e fe ren c e 7 C613-03022 -00 REV K A T -AR040 NSM The A T -AR040 p r ovi des four Port I nterface Card (PIC) expansion b ays for installing PICs. The front panel of the A T- AR04 0 NSM is shown in Figure 2 . The A T- A R040 NSM does not have LEDs.
8 Network Service Module C613-03022- 00 REV K ■ If an A T -AR020 PIC is installed in an A T -AR040 NSM, and operating in E1 mode, you can not install an A T -AR021(S) or A T -AR02 1(U) PIC in the same row of t he NS M. ■ Y ou can install a maximum of four A T -AR027 PICs in an AR745 router fitted with an A T -AR040 NSM.
Ha rdw a re R e fe ren c e 9 C613-03022 -00 REV K A T -AR041 and A T -AR042 NSMs The A T -AR041 NSM pro v ides eight ISDN Basic Rate S/T interfaces. The fr ont panel of the A T- AR0 41 is shown in Figure 3 . Figure 3: A T -AR041 NSM The A T- AR042 NSM provides four ISDN Basic Rate S/T interfaces.
10 Network Service Module C613-03022- 00 REV K Basic Rate ISDN Interfaces Each Basic Rate S/T interface supports two 64 kbit/s B channels and one 16kbit/s D channel, and operates in TE mode only . The switch or router should be configured as a TE for normal operation.
Ha rdw a re R e fe ren c e 11 C613-03022 -00 REV K If you are uns ure of whether to terminat e the line or not, co ntact your ISDN service pr ovider or your authorised Allied T elesis distributor or r eseller . Wa r n i n g Do not attempt to change any jumpers on the NSM while the switch or router is connected to a power suppl y or a live network.
12 Network Service Module C613-03022- 00 REV K T esting an A T- AR041 or A T- AR042 NSM The T est Facility is built into the AlliedW are operating system, and is the best method to verify the correct operation of the BRI interfaces on the A T- AR041 and A T- AR042 NSMs.
Ha rdw a re R e fe ren c e 13 C613-03022 -00 REV K Figure 8: Example output fr om the show te st command For more complete testing, connect the BRI interface to an external ISDN test device or NT mode.
14 Network Service Module C613-03022- 00 REV K A T -AR048 NSM The AR048 NSM provides a single unch annelised DS3 interface with two BNC connectors for transmit and re ceive. The front panel of the A T- AR048 NSM is shown in Figur e 9 and the functions of the LEDs are described in Ta b l e 4 .
Ha rdw a re R e fe ren c e 15 C613-03022 -00 REV K DS3 Interface Cables Use 75 Ω RG59 coaxial cables with BNC co nnectors. T wo cables ar e required, one for transmit and one for r eceive.
16 Network Service Module C613-03022- 00 REV K Figure 11: Example output from the show test inter face counter command for a DS3 interface Board ID Bay Board Name Rev Serial number -------------------.
Ha rdw a re R e fe ren c e 17 C613-03022 -00 REV K LEDs and What They Mean The following LEDs report operations and faul ts on NSMs and related ha rdw are : The A T -AR040 NSM has no independent LEDs. See Ta b l e 5 for information about related LEDs found on the base swit ch or r outer .
18 Network Service Module C613-03022- 00 REV K PIC LEDs The following LEDs report operations and faul ts on PICs, and may be helpful when diagnosing pos sible A T -AR040 NSM operat ional faults. The LEDs are located on the faceplate of the respective PIC.
Ha rdw a re R e fe ren c e 19 C613-03022 -00 REV K T able 9: A T- AR023 SYN PIC LEDs LED Function Tx Lit when data is being transmitted over the synchronous interface. Rx Lit when data is being received on the synchronous interfac e. T able 10: A T - AR026 4ETH PIC LEDs LED Function Left Lit when the port is operating at 100Mbps and full duplex.
20 Network Service Module C613-03022- 00 REV K Hot Swapping Hot swapping is the installation or r e moval of a component such as an NSM without powering down or restarti ng the switch or ro uter . NSMs can be hot swapped in and out of switches and routers that are r unning Software V ersion 2.
Ha rdw a re R e fe ren c e 21 C613-03022 -00 REV K The configuration script is not scanned for commands relating to hot-inserted interfaces u ntil the switch or r outer is rest arted.
22 Network Service Module C613-03022- 00 REV K T r oubleshooting This section prov ides information on how to detect and r esolve problem s with NSMs. Performing the followin g tasks will eliminate the most common faults. 1. Check that the NSM is corre ctly installed.
Ha rdw a re R e fe ren c e 23 C613-03022 -00 REV K Obtaining Documentation and Resour ces Document set The complete document set for Network Service Modules includes: ■ this Hardwar e Reference, whi.
24 Network Service Module C613-03022- 00 REV K Contacting us W ith locations covering all of the esta blished markets in North America, Latin America, Eur ope, Asia, and the Pacific, Allied T elesis provid es localized sales and technical support worldwid e.
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 Allied Telesis AT-AR041 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 Allied Telesis AT-AR041 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Allied Telesis AT-AR041 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Allied Telesis AT-AR041 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Allied Telesis AT-AR041, 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 Allied Telesis AT-AR041.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Allied Telesis AT-AR041. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Allied Telesis AT-AR041 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.
