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Monitoring the DSU
6-3
7610-A2-GB20-10
November 1997
Network LEDs
DM – Data Mode:
ON – DSU (DDS network interface) is sending or
receiving data, or is in DMI condition
(all 1’s being received).
OFF – DDS network interface is receiving CMI codes.
OOS – Out of Service:
ON – The network has notified the DSU that
the remote unit is out of service.
Refer to Health and Status Messages,
Table 6-1.
OOF – Out of Frame:
ON – DSU is detecting an out of frame
condition. Refer to Health and Status
Messages, Table 6-1.
NS – No Signal:
ON – DDS network interface detects
no signal. Refer to Health and
Status Messages, Table 6-1.