Allied Telesis AT-AR020 PRI E1/T1 Application guide

Port Interface Card

Hardware Reference

AT-AR020 PRI E1/T1

AT-AR021 (S) BRI- S/T

AT-AR021 (U) BRI-U

AT-AR022 ETH

AT-AR023 SYN

AT-AR024 ASYN4

AT-AR026 4ETH

AT-AR027 VoIP-FXS

Port Interface Card Hardware Reference

AT-AR020 PRI E1/T1

AT-AR021 (S) BRI-S/T

AT-AR021 (U) BRI-U

AT-AR022 ETH

AT-AR023 SYN

AT-AR024 ASYN4

AT-AR026 4ETH

AT-AR027 VoIP-FXS

Download the complete document set from

www.alliedtelesis.com/support/software

Port Interface Card Hardware Reference

Document Number C613-03023-00 REV N.

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 incidental, special, indirect, or consequential

damages whatsoever, including but not limited to lost profits, arising out of or

related to this manual or the information contained herein, even if Allied

Telesis, Inc. has been advised of, known, or should have known, the possibility

of such damages.

Allied Telesis and AlliedWare are trademarks or registered trademarks in the

United States and elsewhere of Allied Telesis, Inc. Adobe, Acrobat, and Reader

are either registered trademarks or trademarks of Adobe Systems Incorporated

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products mentioned herein may be trademarks of their respective companies.

Contents

Devices Covered By This Document ................................................................... 4

Compatible Switches and Routers ..................................................................... 4

Hardware Overview .......................................................................................... 5

Common Features ...................................................................................... 5

AT-AR020 PRI E1/T1 PIC ............................................................................. 6

AT-AR021(S) BRI-S/T PIC ............................................................................. 8

AT-AR021(U) BRI-U PIC ............................................................................. 10

AT-AR022 ETH PIC .................................................................................... 11

AT-AR023 SYN PIC ................................................................................... 12

AT-AR024 ASYN4 PIC ............................................................................... 13

AT-AR026 4ETH PIC .................................................................................. 14

AT-AR027 VoIP-FXS PIC ............................................................................ 17

PIC Interfaces .................................................................................................. 19

Asynchronous Interface ............................................................................ 19

Synchronous Interface .............................................................................. 20

Ethernet Interface ..................................................................................... 20

Basic Rate ISDN Interface .......................................................................... 20

Primary Rate ISDN Interface ...................................................................... 21

VoIP FXS Interface .................................................................................... 22

Cables and Loopback Plugs for PICs ................................................................ 23

Transition Cables for the AT-AR023 PIC ..................................................... 23

ISDN Interface Cables ............................................................................... 31

BT Adaptor Cable for the AT-AR027 PIC ................................................... 32

Terminal and Modem Cables .................................................................... 32

Ethernet Transceivers and AUI Cables ....................................................... 34

Loopback Plugs for Testing Interfaces ....................................................... 35

Hot Swapping the AR040 NSM with PICs Installed .......................................... 38

Behaviour of Hot Swapped Interfaces ....................................................... 38

PIC Testing and Verification ............................................................................. 40

Test Facility ..................................................................................................... 42

Troubleshooting .............................................................................................. 44

Obtaining Documentation and Resources ........................................................ 45

4Port Interface Card

C613-03023-00 REV N

Devices Covered By This Document

This Hardware Reference contains information on the following Port Interface

Cards (PICs):

■AT-AR020 PRI E1/T1, a single ISDN Primary Rate E1/T1 interface

■AT-AR021 (S) BRI- S/T, a single ISDN Basic Rate S/T interface

■AT-AR021 (U) BRI-U, a single ISDN Basic Rate U interface

■AT-AR022 ETH, a dual Ethernet 10BASE-T/AUI port

■AT-AR023 SYN, a single 2Mbps synchronous interface

■AT-AR024 ASYN4, four asynchronous ports

■AT-AR026 4ETH, four Ethernet 10BASE-T ports

■AT-AR027 VoIP-FXS, two Foreign Exchange Voice over IP ports

You can download the complete document set for PICs, and for your switch or

router, from www.alliedtelesis.com/support/software. For more information

about the document set and other resources, see “Obtaining Documentation

and Resources” on page 47.

Compatible Switches and Routers

You can install a PIC into a PIC bay on the base unit of your switch or router, or

into a PIC bay on an AT-AR040 NSM (Network Service Module) installed in your

switch or router.

The following table shows which PICs are appropriate for different expansion

bays and models of switch and router.

The AT-AR021(S) V3 hardware revision, identified by the label “AR021v3” on

the board, requires a switch or router running AlliedWare®Operating System

version 2.9.1-13 or later.

Table 1: Compatible switches and routers for Port Interface Cards (PICs)

This expansion bay ... Accepts ...

PIC bays in the AR415S, AR440S, AR441S,

AR442S, AR725, and AR745 router

All PICs.

PIC bays in the AR750S, AR750S-DP, and

AR770S router

AT-AR020, AT-AR021, AT-AR023, and

AT-AR024.

AT-AR040 NSM in the AR745 router,

Rapier 16fi and Rapier 24i switch

All PICs except AT-AR022 and

AT-AR026.

AT-AR040 NSM in the Rapier 48w switch AT-AR020, AT-AR021v3, and AT-AR024.

Hardware Reference 5

C613-03023-00 REV N

Hardware Overview

This section provides an overview of the hardware features of PICs. PICs

provide a cost effective and flexible mechanism for adding new or additional

network interfaces to your switch or router. By adding or changing PICs,

network interface capabilities can be upgraded without replacing the switch or

router. A PIC can provide additional network interfaces, or can be replaced

with a different PIC to provide alternative interface types.

Hardware descriptions for your switch or router, Uplink Modules, and

Network Service Modules (NSMs) can be found in their respective Hardware

References. These documents can be downloaded from

www.alliedtelesis.com/support/software.

Common Features

The following hardware features are common to all PIC models.

Environmental

conditions

■Operating temperature range: 0 ºC to 40 ºC (32 ºF to 104 ºF)

■Storage temperature range: -25 ºC to 70 ºC (-13 ºF to 158 ºF)

■Relative humidity range: 5% to 95% non-condensing

Regulatory

Standards

■Emissions: EN55022 class A, FCC class A, and VCCI class A,

AS/NZS CISPR22

■Immunity: EN55024

■Safety: UL60950-1, CAN/CSA-C22.2 No. 60950-1-03, EN60950-1,

AS/NZS60950.1

6Port Interface Card

C613-03023-00 REV N

AT-AR020 PRI E1/T1 PIC

The AT-AR020 PRI E1/T1 PIC provides a single G.703/Primary Rate ISDN

WAN port with an RJ-45 connector.

The front panel of the AT-AR020 PRI E1/T1 PIC is shown in Figure 1, and the

functions of the LEDs are listed in Table 1.

Figure 1: AT-AR020 PRI E1/T1 PIC

The AT-AR020 supports both E1 and T1 operation. A jumper selects the

required mode. A second jumper selects NT (Network Terminator) or TE

(Terminal Equipment) mode, and the current mode is displayed by the NT LED.

This jumper is factory set to TE mode for normal operation and should not be

changed without contacting your ISDN service provider, or authorised Allied

Telesis distributor or reseller. Earlier versions of this card also have a J3 jumper.

If present, this jumper must be installed for E1 mode and removed for T1

mode.

Jumper locations are shown in Figure 2 on page 7, and jumper functions are

listed in Table 2 on page 7.

Table 1: AT-AR020 PRI E1/T1 PIC LED functions

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 packets are being exchanged between the switch or

router and another end system device (normally another switch or router)

over any of the B (data) channels.

Active Lit whenever operational (i.e., no RAI or AIS) frames are being received.

NT [ISDN mode only] Lit when the PRI1 is operating in NT mode. This LED

should not be lit during normal operation.

Active

LEDs

PRI E1/T1 (RJ45 connector)

D Data

B Data

LEDs

AR020FP

PRI E1/T1

Hardware Reference 7

C613-03023-00 REV N

Figure 2: Location of jumpers on the AT-AR020 PRI E1/T1 PIC board

Warning

Do not attempt to install or remove the PIC, or change any jumpers on

the PIC, 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 WAN port of the PIC. Dangerous voltages may be

present on some parts of the PIC board, even if the switch or router is powered off.

Table 2: Functions of jumpers on the AT-AR020 PRI E1/T1 PIC board

Jumper Function Default

J1 Selects ISDN NT mode (installed) or TE mode (not installed). Not installed.

J2 Selects T1 mode (installed) or E1 mode (not installed). Installed.

J3 Selects E1 mode (installed) or T1 mode (not installed).

Only present on earlier versions of the PIC.

AR020C

S/N

PIC CONNECTOR

LED

D Data

B Data

LED

Active

RJ45

J2 (E1/T1)

J1 (NT/TE)

PRI

8Port Interface Card

C613-03023-00 REV N

AT-AR021(S) BRI-S/T PIC

The AT-AR021(S) BRI-S/T PIC provides a single Basic Rate ISDN S/T WAN

port. The BRI port has an RJ-45 connector.

The front panel of the AT-AR021(S) PIC is shown in Figure 3 and the functions

of the LEDs are listed in Table 3.

Figure 3: AT-AR021(S) BRI-S/T PIC

In North America, the S/T interface must be supplied from a UL listed

network terminating device such as an NT1, and the cable length between the

AR021(S) PIC and the NT1 device must be less than 1000 metres.

Two user-configurable jumpers provide 100Ωline termination. Jumper

locations on the AT-AR021(S) V3 hardware revision are shown in Figure 4 on

page 9, and jumper functions are listed in Table 4 on page 9. The older V2

hardware revision of the AT-AR021(S) has the same jumpers and functions, but

the positions of the jumpers are reversed. The hardware revision is identified

by the label “AR021 V2” or “AR021v3” printed on the board.

The V3 hardware revision supports TE mode only. The V2 hardware revision

supports both TE and NT mode. Jumper J4, when installed, selects NT mode.

The PIC should be configured as a TE for normal operation.

Table 3: AT-AR021(S) BRI-S/T PIC LED functions

LED Function

B1, B2 For on-demand ISDN, lit when there is a call up over the respective B

channel and flashing when data is being exchanged.

For permanent circuits, lit when HDLC packets are being exchanged

between the switch or router and another TE end system device (normally

another switch or router) over the respective B (data) channel.

Active Lit when the BRI has successfully completed the exchange of INFO 1 and

INFO 2 signals, and INFO 3 and INFO 4 signals are present on the link. This

means that the ISDN interface is correctly connected to a working NT

device.

D Lit when HDLC packets are being exchanged between the switch or

router and the ISDN switch over the D (signalling) channel.

BRI S/T

Active

LEDs

ISDN BRI S/T port (RJ45 connector)

LEDs

AR021SFP

Hardware Reference 9

C613-03023-00 REV N

Figure 4: Location of jumpers on the AT-AR021(S) BRI-S/T PIC board

You should install the termination jumpers (terminate Rx and Tx) if:

■termination is not provided by the building wiring, and

■the device is the only TE device on a Point-to-Point link between the NT

and the TE, or the device is the last device on an S/T bus

You should remove the termination jumpers (not terminate Rx and Tx) if:

■termination is provided by the building wiring, or

■the device is one of a number of devices on an S/T bus, and is not the last

device on an S/T bus

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 install or remove the PIC, or change any jumpers on

the PIC, 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 WAN port of the PIC. Dangerous voltages may be

present on some parts of the PIC board, even if the switch or router is powered off.

Table 4: Functions of jumpers on the AT-AR021(S) BRI-S/T PIC board

Jumper Function Default

J1 100Ωtermination for TX. Not installed.

J2 100Ωtermination for RX. Not installed.

J4 ISDN NT mode (installed) or TE mode (not installed).

Only present on V2 hardware revision of PIC.

Not installed.

PIC CONNECTOR

ISDN RX

TERMINATION ISDN TX

TERMINATION

J2 J1

RJ45

BRI

LED

Active

AR021SC

NT MODE (V2 REV ONLY)

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