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Network Service Module
Hardware Reference
AT-AR040
AT-AR041
AT-AR042
AT-AR048
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Network Service Module Hardware Reference AT-AR040 AT-AR041 AT-AR042 AT-AR048 Download the complete document set from www.alliedtelesis.com/support/software
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Network Service Module Hardware Reference Document Number C613-03022-00 REV K. © 2007 Allied Telesis, Inc. All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc. Allied Telesis, Inc. reserves the right to change specifications and other information in this document without prior written notice. The information provided herein is subject to change without notice. In no event shall Allied Telesis, Inc. be liable for any inc
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Contents Devices Covered By This Document ................................................................... 4 Compatible Switches and Routers ..................................................................... 4 AT-AR048 Support ..................................................................................... 4 Hardware Overview .......................................................................................... 6 Common Features ....................................................
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4 Network Service Module Devices Covered By This Document This Hardware Reference includes information on the following Network Service Modules (NSMs): ■ AT-AR040, four Port Interface Card (PIC) expansion bays ■ AT-AR041, eight ISDN Basic Rate S/T interfaces ■ AT-AR042, four ISDN Basic Rate S/T interfaces ■ AT-AR048, one unchannelised DS3 interface You can download the complete document set for NSMs, and for your switch or router, from www.alliedtelesis.com/support/software. For more informat
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Hardware Reference 5 Figure 1: Serial number label on the underside of a Rapier 24i Model : AT-RP241-10 Part Number: 990-11934-10 N or higher for maximum DS3 performance Product Serial Number: S03K225N J, K, L, or M for less demanding Quantity With Unit of DS3 applications Measure: 1 EA 7 67035 14875 5 Made in Singapore C613-03022-00 REV K
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6 Network Service Module 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 interfaces, or provide expansion slots for Port Interface Cards (PICs). Hardware descriptions for your switch or router, Uplink Modules, and PICs can be found in their respective Hardware References. These documents can be d
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Hardware Reference 7 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 Blank face-plate AT-AR024 ASYN4 PIC 30 SYN Tx D Data Active Rx B Data NT AT-AR023 SYN PIC AT-AR020 PRI E1/T1 PIC nsm4pic3 Supported Port Interface Cards (PICs) The following PICs can be installed in an AT-AR040 NSM: ■ AT-AR020 PRI
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8 Network Service Module ■ 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 NSM. ■ Avoid installing an AT-AR022 or AT-AR026 PIC in an AT-AR040 NSM. Performance of these interfaces may be reduced and packet loss may occur. Interface numbering For each interface type (e.g. BRI, PRI, SYN, ETH,
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Hardware Reference 9 AT-AR041 and AT-AR042 NSMs The AT-AR041 NSM provides eight ISDN Basic Rate S/T interfaces. The front panel of the AT-AR041 is shown in Figure 3. Figure 3: AT-AR041 NSM 75 6 4 312 0 Active Data The AT-AR042 NSM provides four ISDN Basic Rate S/T interfaces. The front panel of the AT-AR042 is shown in Figure 4. Figure 4: AT-AR042 NSM 31 2 0 Active Data The BRI ports use RJ-45 connectors and provide TE interfaces. There are two status LEDs per port. The functions of the LEDs
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10 Network Service Module Basic Rate ISDN Interfaces Each Basic Rate S/T interface supports two 64kbit/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 100Ω line termination. By default, the jumpers are factory set to terminate Rx and Tx, bridging terminals 2 and 3 (Figure 5 on page 10). To remove the line termination, move the jumpers so that they bridge terminals
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Hardware Reference 11 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 power supply or a live network. Disconnect the mains power supply, any redundant power supply, and any cable attached to the ISDN ports of the NSM. Dangerous voltages may be present on some parts of the NSM board, even
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12 Network Service Module Testing an AT-AR041 or AT-AR042 NSM The Test Facility is built into the AlliedWare operating system, and is the best method to verify the correct operation of the BRI interfaces on the AT-AR041 and AT-AR042 NSMs. Testing can be performed while the switch or router is operational, but any interfaces being tested are dedicated to the Test Facility. For more information about the Test Facility, see the Test Facility chapter of the ® AlliedWare Operating System Softwar
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Hardware Reference 13 Figure 8: Example output from the show test command Board ID Bay Board Name Host Id Rev Serial number ------------------------------------------------------------------------------- Base 78 AR740 M1-15 46625812 PIC 38 0 AT-AR023-00 PIC Sync M1-1 5918255 NSM 95 AT-AR041-00 NSM 8BRI P1-3 46624968
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14 Network Service Module 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-AR048 NSM RX TX LOS LOF Loop AIS Activity FERF Table 4: AT-AR048 LEDs LED State Function Active Green Lit when the Line Interface Unit (LIU) is receiving a signal. Loop Green Lit when any loopback is active. LOS Amber Lit w
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Hardware Reference 15 DS3 Interface Cables Use 75Ω RG59 coaxial cables with BNC connectors. Two cables are required, one for transmit and one for receive. Neither cable should exceed 135m (455feet) in length. Testing an AT-AR048 NSM The Test Facility is built into the AlliedWare operating system, and is the best method to verify the correct operation of the DS3 interface on the AT-AR048 NSM. Testing can be performed while the switch or router is operational, but any interfaces being tested
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16 Network Service Module 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 NSM DS3 187 AT-AR048 NSM DS3 M1-1 49986061 Duration Frame Counters Interface State Type (minutes)
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Hardware Reference 17 LEDs and What They Mean The following LEDs report operations and faults on NSMs and related hardware: LEDs on the... Are described in ... Switch and router base unit Table 5 AT-AR041 NSM Table 2 on page 9 AT-AR042 NSM Table 2 on page 9 AT-AR048 NSM Table 4 on page 14 AT-AR020 PRI E1/T1 PIC Table 6 on page 18 AT-AR021(S) BRI-S/T PIC Table 7 on page 18 AT-AR022 ETH PIC Table 8 on page 18 AT-AR023 SYN PIC Table 9 on page 19 AT-AR026 4ETH PIC Table 10 on page 19 AT-AR027 VoIP-
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18 Network Service Module 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: AT-AR020 PRI E1/T1 PIC LEDs LED Function D Data [ISDN mode only] Lit when HDLC packets are being exchanged between the switch or router and the ISDN switch over the D (signalling) channel. B Data Lit when HDLC pack
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Hardware Reference 19 Table 9: AT-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 interface. Table 10: AT-AR026 4ETH PIC LEDs LED Function Left Lit when the port is operating at 100Mbps and full duplex. Right Lit when a link has been established. Flashing when data is being transmitted through the port. Table 11: AT-AR027 VoIP-FXS PIC LEDs LED State Function Off Hook/Ring Off The port is
