Manual

1-, 2-, and 4-Port T1/E1 HWICs and 8-Port T1/E1 Network Module
How to Configure T1/E1 HWICs and Network Module
9
Cisco IOS Release 12.4(11)XW5, and 12.4(20)T
Step 11
cablelength long db-loss-value
or
cablelength short length
Example:
Router(config-controller)# cablelength short
133
T1 only. cablelength long attenuates the pulse from the
transmitter using pulse equalization and line build-out. This
command applies to cables longer than 660 feet. Loss
values are:
0db
-7.5db
-15db
-22.5db
Default attenuation is 0db.
cablelength short sets transmission attenuation for cable
lengths of 660 feet or less. Cable lengths can be specified as
follows:
110 for cable lengths from 0 to 110 feet
220 for cable lengths from 110 to 220 feet
330 for cable lengths from 220 to 330 feet
440 for cable lengths from 330 to 440 feet
550 for cable lengths from 440 to 550 feet
660 for cable lengths from 550 to 660 feet
There is no default cable length.
Command or Action Purpose