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Monitoring the DSU
6-9
7612-A2-GB20-10
November 1997
Test Status Messages
The Test Status Messages in Table 6-3 appear in the right column of the System
and Test Status screen. For additional information on loopbacks, refer to
Table 7-1, Loopbacks.
Table 6-3. Test Status Messages
Test Status Message
Meaning
CSU Loopback Active A CSU Loopback toward the network is currently active. Only
applies to a test initiated by the user via the ATI or the NMS.
DSU Loopback Active A DSU Loopback toward the network is currently active. Only
applies to a test initiated by the user via the ATI or the NMS.
Lamp Test Active The Lamp Test is active, causing the LEDs on the front panel to
light.
Local Loopback Active A local loopback toward the DTE is currently active.
Monitoring 511 on
Network
DSU is monitoring a 511 test pattern on the network interface.
Monitoring 511 on Port DSU is monitoring a 511 test pattern on the DTE port.
Net-initiated CSU LB
Active
A CSU Loopback initiated by the network is currently active.
H If the network service is 56 kbps, the network loopback is
non-latching. A non-latching loopback ends when the
network activation codes stop.
H If the network service is 64 kbps CC, the network loopback
is latching.
Net-initiated DSU LB
Active
A DSU Loopback initiated by the network is currently active.
H If the network service is 56 kbps, the network loopback is
non-latching. A non-latching loopback ends when the
network activation codes stop.
H 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 Table A-2, Network Interface Options.
No Test Active Status message, indicating no local, remote, or network test in
progress.
Sending 511 on
Network
A 511 test pattern is being sent over the network interface.
Sending 511 on Port A 511 test pattern is being sent over the DTE port.
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 Table A-2, Network Interface Options.