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ACCULINK 3163 DSU/CSU
4-4 March 1999 3163-A2-GB20-10
Table 4-2
Health and Status Messages
Message
Description
LOS at Net A Loss Of Signal condition (175 consecutive zeros) has been detected on the network interface.
The condition is cleared when the density of ones to zeros received is 12.5%.
OOF at Net An Out Of Frame condition (2 out of 4 frame synchronization bits in error) has been detected on
the network interface. The condition is cleared when a reframe occurs.
AIS at Net An Alarm Indication Signal (unframed all ones signal) is being received by the network interface.
EER at Net An Excessive Error Rate condition has been detected on the network interface (the bit error rate
has exceeded the configured threshold for ESF framing). The condition is cleared when the error
rate falls below the threshold value.
Yellow at Net A Yellow Alarm signal is being received by the network interface.
PORT
IP Down The IP management link is in a down state for
PORT
(where
PORT
is COM or MODEM). This
condition occurs if the
PORT
is configured for Mgmt, and communication between the
management system and the DSU/CSU is not currently possible for this port.
Selftest failed A failure was detected during the power-on self-test. Select STest (in the Stat branch) to display
more information about the failure.
DevFail
xxxxxxxx
An internal error has been detected by the operating software. An 8-digit code appears for use by
service personnel. The condition is cleared by resetting the device.
Download failed A download attempt was interrupted and failed to complete. The condition is cleared by resetting
the device.
Test in progress A test is currently active. Select Tstat (in the Stat branch) to display more test information.
Modem Connected The integral modem is currently connected. This message is only displayed for standalone
DSU/CSUs.
Master Clk fail The master clock has failed. Timing for the DSU/CSU is provided by the internal clock.
DSU Operational This message only appears if there are no valid alarm or status messages.