Command Reference Guide

3Com Router 5000 Family and Router 6000 Family dl-bits ● 135
Command Reference
dl-bits
Purpose Use the dl-bits command to configure the bit value of all the signals of R2 line
signaling.
Use the
undo dl-bits command to restore the values to defaults.
Syntax dl-bits { answer | blocking | clear-back | clear-forward | idle | seize
| seizure-ack | release-guard } { receive | transmit } ABCD
undo dl-bits { answer | blocking | clear-back | clear-forward | idle |
seize | seizure-ack | release-guard } { receive | transmit }
Parameters answer
Answer signal of R2 line signaling.
blocking
Blocking signal of R2 line signaling.
clear-back
Clear-back signal of R2 line signaling.
clear-forward
Clear-forward signal of R2 line signaling.
idle
Idle signal of R2 line signaling.
seize
Seizure signal of R2 line signaling.
seizure-ack
Seizure acknowledgement signal of R2 line signaling.
release-guard
Release guard signal of R2 line signaling.
receive
Signal of receiving R2 line signaling
transmit
Signal of sending R2 line signaling
ABCD
Value of signal bits of receiving/sending R2 line
signaling, ranging from 0000 to 1111.
Example Configure ABCD bits value of the idle signal of receiving R2 signaling to 1101, and
that of the idle signal of transmitting R2 signaling to 1011.
[3Com -cas1/0/4:0] dl-bits idle receive 1101
[3Com -cas0:0] dl-bits idle transmit 1011
Table 1 Default values of R2 line signaling
Signal Default rx-bits ABCD Default tx-bits ABCD
Answer 0101 0101
Blocking 1101 1101
Clear-back 1101 1101
Clear-forward 1001 1001
Idle 1001 1001
Seize 0001 0001
Seizure-ack 1101 1101
Release-guard 1001 1001