Allied Telesis AT-AR042 - Manual

6 Network Service Module C613-03022-00 REV K Hardware Overview This section provides an overview of the hardware features of NSMs. NSMs are expansion options for switch and router models with an NSM bay. NSMs slot into a base-unit switch or router and either directly provide additional WAN interface...

Hardware Reference 7 C613-03022-00 REV K AT-AR040 NSM The AT-AR040 provides four Port Interface Card (PIC) expansion bays for installing PICs. The front panel of the AT-AR040 NSM is shown in Figure 2 . The AT-AR040 NSM does not have LEDs. Figure 2: AT-AR040 NSM with three PICs installed Supported Po...

8 Network Service Module C613-03022-00 REV K ■ If an AT-AR020 PIC is installed in an AT-AR040 NSM, and operating in E1 mode, you can not install an AT-AR021(S) or AT-AR021(U) PIC in the same row of the NSM. ■ You can install a maximum of four AT-AR027 PICs in an AR745 router fitted with an AT-AR040 ...

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. User-configurable jumpers provide...

Hardware Reference 11 C613-03022-00 REV K If you are unsure of whether to terminate the line or not, contact your ISDN service provider or your authorised Allied Telesis distributor or reseller. Warning Do not attempt to change any jumpers on the NSM while the switch or router is connected to a powe...

Hardware Reference 13 C613-03022-00 REV K Figure 8: Example output from the show test command For more complete testing, connect the BRI interface to an external ISDN test device or NT mode device and use the enable bri ctest command and the disable bri ctest command from the Integrated Services Dig...

14 Network Service Module C613-03022-00 REV K AT-AR048 NSM The AR048 NSM provides a single unchannelised DS3 interface with two BNC connectors for transmit and receive. The front panel of the AT-AR048 NSM is shown in Figure 9 and the functions of the LEDs are described in Table 4 . Figure 9: AT-AR04...

Hardware Reference 15 C613-03022-00 REV K DS3 Interface Cables Use 75 Ω RG59 coaxial cables with BNC connectors. Two cables are required, one for transmit and one for receive. Neither cable should exceed 135 m (455 feet) in length. Testing an AT-AR048 NSM The Test Facility is built into the AlliedWa...

16 Network Service Module C613-03022-00 REV K Figure 11: Example output from the show test interface counter command for a DS3 interface Board ID Bay Board Name Rev Serial number ---------------------------------------------------------------------------- Base 114 AT-RP24i Rapier 24i M2-0 41376726 N...

Hardware Reference 17 C613-03022-00 REV K LEDs and What They Mean The following LEDs report operations and faults on NSMs and related hardware: The AT-AR040 NSM has no independent LEDs. See Table 5 for information about related LEDs found on the base switch or router. Switch and Router LEDs for NSMs...

18 Network Service Module C613-03022-00 REV K PIC LEDs The following LEDs report operations and faults on PICs, and may be helpful when diagnosing possible AT-AR040 NSM operational faults. The LEDs are located on the faceplate of the respective PIC. The AT-AR024 ASYN4 PIC does not have LEDs. Table 6...

20 Network Service Module C613-03022-00 REV K Hot Swapping Hot swapping is the installation or removal of a component such as an NSM without powering down or restarting the switch or router. NSMs can be hot swapped in and out of switches and routers that are running Software Version 2.3.1 or later. ...

22 Network Service Module C613-03022-00 REV K Troubleshooting This section provides information on how to detect and resolve problems with NSMs. Performing the following tasks will eliminate the most common faults. 1. Check that the NSM is correctly installed. See the Network Service Module Installa...

Hardware Reference 23 C613-03022-00 REV K Obtaining Documentation and Resources Document set The complete document set for Network Service Modules includes: ■ this Hardware Reference, which contains detailed information on the hardware features of Network Service Modules ■ the Network Service Module...

24 Network Service Module C613-03022-00 REV K Contacting us With locations covering all of the established markets in North America, Latin America, Europe, Asia, and the Pacific, Allied Telesis provides localized sales and technical support worldwide. To find the representative nearest you, visit us...