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Alarm Settings
Loss of
The DBS activates a loss of signal alarm when the
Signal
incoming ISDN signal is not received for more
than 150 ms.
Note: The LEDs on the ISDN card are normally steadily lit during an alarm condition. However, SLIP
alarms cause the SLIP LED to blink rather than light.
Table 4-2. Alarm-related programs
Parameter
Yellow Alarm Send
Yellow Alarm Counter
Yellow Alarm Relay
Red Alarm Detection
Red Alarm Recovery
Red Alarm Counter
Red Alarm Relay
AIS Relay
Frame Loss Counter
Frame Loss Relay
4-18
Address
Yellow Alarms
FF1 9# 4# 4# 1# 7# (0-1)#
FF1 9# 4# 5# 1# 7# (0-1)#
FF1 9# 4# 4# 3# 6# (0-9000)#
FF1 9# 4# 5# 3# 6# (0-9000)#
FF1 9# 4# 4# 4# 1# (0-1)#
FF1 9# 4# 5# 4# 1# (0-1)#
Red Alarms
FF1 9# 4# 4# 2# 1# (0-15)#
FF1 9# 4# 5# 2# 1# (0-15)#
FF1 9# 4# 4# 2# 2# (0-15)#
FF1 9# 4# 5# 2# 2# (0-15)#
FF1 9# 4# 4# 3# 3# (0-9000)#
FF1 9# 4# 5# 3# 3# (0-9000)#
FF1 9# 4# 4# 4# 2# (0-1)#
FF1 9# 4# 5# 4# 2# (0-1)#
Alarm Indication Signal
FF1 9# 4# 4# 4# 5# (0-1)#
FF1 9# 4# 5# 4# 5# (0-1)#
Frame Loss Alarms
FF1 9# 4# 4# 3# 1# (0-9000)#
FF1 9# 4# 5# 3# 1# (0-9000)#
FF1 9# 4# 4# 4# 4# (0-1)#
FF1 9# 4# 5# 4# 4# (0-1)#
DBS-EX23-530
Programming Reference
FF key (after the counter is exceeded)
CFA LED on the ISDN card
OOF LED on the ISDN card
Function
Determines whether the DBS sends a yellow
alarm to the CO.
Error counter for the Yellow Alarm FF key.
Determines if the alarm relay on the ISDN
MDF card closes in the event of yellow
alarms.
The red alarm value is determined by network
requirements. This value should not be
changed.
When a red alarm occurs, the CFA LED on
the ISDN card lights, and the alarm relay on
the ISDN MDF card closes.
Determines how long the DBS tries to recover
from a red alarm before it re-syncs the ISDN
trunk.
Error counter for the Red Alarm FF key.
Determines if the alarm relay on the ISDN
MDF card closes in the event of red alarms.
Determines if the alarm relay on the ISDN
MDF card closes in the event of an alarm indi-
cation signal. An alarm indication signal is
comprised of all 1's and is unframed.
Error counter for the Frame Loss FF key.
Determines if the alarm relay on the ISDN
MDF card closes in the event of frame loss
alarms.
Revised April 2000
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