Monitoring the DSU
4-5
7510-A2-GB20-00
March 1997
Test Status Messages
The
Test Status Messages
in the following table appear in the rightmost column
of the System and Test Status screen.
Table 4-4.
Test Status Messages
Test Status Message
Meaning
No Test Active
Status message, indicating no local, remote, or network test in
progress.
CSU Loopback Active
A CSU Loopback toward the network is currently active.
Network-init. CSU LB
Active
A CSU Loopback initiated by the network is currently active.
DSU Loopback Active
A DSU Loopback toward the network is currently active.
Network-init. DSU LB
Active
A DSU Loopback initiated by the network is currently active.
If the network service is 56 kbps, the network loopback is
non-latching. A non-latching loopback ends when the
network activation codes stop.
If the network service is 64 kbps CC, the network loopback
is latching. This condition can only occur when the Network
Interface option Network-initiated DSU Loopback (64K CC)
is enabled. Refer to
Network Interface Options
, Table A-2.
V.54-initiated DSU LB
Active
A DSU loopback is active that was initiated by the detection of
a V.54 sequence originated by the remote unit. This condition
can only occur when V.54 Initiated DSU Loopback is enabled.
Refer to
Network Interface Options
, Table A-2.
Local Loopback Active
A local loopback toward the DTE is currently active.
Sending 511 on Port
A 511 test pattern is being sent over the DTE port.
Monitoring 511 on Port
DSU is monitoring a 511 test pattern over the DTE port.
Sending 511 on
Network
A 511 test pattern is being sent over the network interface.
Monitoring 511 on
Network
DSU is monitoring a 511 test pattern on the network interface.
Lamp Test Active
The Lamp Test is active, causing the LEDs on the front panel to
light.