Aastra AXD Installation And Maintenance Manual page 234

Microswitches CA5 and CA7 are used to configure the line coding, remote alarms, and
distances.
CA5.1 CA5.2 CA5.3 CA5.4
OFF
ON
* Represents the microswitch.
TABLEAU 4.48 CONFIGURATION OF THE CA5 MICROSWITCH ON THE LT2 CARD
AMT/PTD/PBX/0058/4/6/EN
Page 234 01/2011
OFF
ON
OFF
ON
OFF
ON
Description des sous-ensembles
CA5 SWITCH
Line coding = B8ZS
1 2 3 4
ON (Binary 8 zero suppression)
Line coding = AMI
1 2 3 4
ON (Alternate Mark Inversion)
Remote alarm = type A
1 2 3 4
ON
Remote alarm = type B
1 2 3 4
ON
Reception level = 6 dB
1 2 3 4
ON (factory setting)
Reception level = 18 dB
1 2 3 4
ON
Synchronisation with the PCM clock possible
1 2 3 4
ON
Synchronisation with the PCM clock not
1 2 3 4
ON possible
Installation and Maintenance Manual - Aastra 5000
PCM TYPE