Paradyne 7123 User Manual page 37

3. Configuration
Table 3-3. Data Port Physical Interface Options (3 of 3)
Network Initiated Data Channel Loopback
Possible Settings: Disable, V.54, ANSI_FT1, V.54_&_ANSI
Default Setting: Disable
Allows the initiation and termination of the Data Channel Loopback (DCLB V.54 Loop 2) to
be controlled by the receipt of a DCLB-actuate or DCLB-release sequence (either V.54 or
FT1-ANSI compliant) from the network on the DS0s used for the network link. When
enabled and a DCLB-activate sequence is received, the unit initiates a DCLB on the
network interface. When a DCLB-release sequence is received, the DCLB is stopped.
Disable – DCLB-actuate and DCLB-release sequences are ignored.
ANSI_FT1 – DCLB-actuate and DCLB-release sequences compliant with the
ANSI T1.403, Annex B standard are recognized and control initiation and termination of a
DCLB for the network link.
V.54_&_ANSI – DCLB-actuate and DCLB-release sequences that comply with either V.54
or ANSI T1.403, Annex B standard are recognized and control initiation and termination of
a DCLB for the network link. The actuate and release sequences do not need to match
(for example, a DCLB started with a V.54 actuate sequence can be stopped with an FT1
release sequence).
3-15
7123-A2-GB20-00 September 2001