Specifications

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 AT-AR040 or AT-AR040-B NSM with PICs Installed ............. 38
Behaviour of Hot Swapped Interfaces ....................................................... 38
PIC Testing and Verification ............................................................................. 40
Test Facility ..................................................................................................... 43
Troubleshooting .............................................................................................. 45
Obtaining Documentation and Resources ........................................................ 46