Command Reference Guide

3Com Router 5000 Family and Router 6000 Family reverse ● 237
Command Reference
reverse
Purpose Use the reverse command to configure the inversion mode of line signals.
Use the undo reverse command to restore the default value.
Syntax reverse ABCD
undo reverse
Parameters ABCD
Indicates whether to perform the inversion of each
signal bit, with the value of each bit being 0 or 1. The
default ABCD is 0000, that is, the function of inversion
is disabled.
Example reverse the B-bit and D-bit of the R2 line signaling.
[Router-cas1/0/0:0] reverse 0101
View This command can be used in the following views:
■ R2 CAS view
Description This command applies to E1 voice only.
This command can be used to perform the inversion change to A, B, C, and D bits
prior to sending and after receiving the line signal, that is, 0 is changed to 1, and 1 to
0. If the value of one bit is 1, it indicates this bit is needed to invert.
Related Commands ■ cas
■ renew