ADTRAN MX2800 M13 User Manual page 137

Notification
AID
Code
301 MN
REPT
ALM
T3
302 CR
(CTRL A)
303
(CTRL B)
302 CR
(CTRL A)
303
(CTRL B)
302 MJ
(CTRL A)
303
(CTRL B)
302 MN
(CTRL A)
303
(CTRL B)
Table 9-3. MX2800 Alarm Events (Continued)
Condition Service
Location
Type Affecting
EXT-DS1 NSA FEND
LOS SA NEND
OOF SA NEND
RAI SA FEND
ISD SA FEND
Description Recommended Action
FEND DS1 Equipment Failure Examine far-end M13 multiplexer to determine the reason it has
NSA signaled this condition.
DS3 Loss Of Signal Check DS3 facility entering the MX2800 for a valid signal.
DS3 Out Of Frame Check The provisioning of the DS3 framing type (M13 OR C-
Bit) to make sure it matches the facility. If this is correct, check
the DS3 facility entering the MX2800 for valid DS3 framing.
DS3 Remote Alarm Check the DS3 facility entering the far-end M13 multiplexer for
Indication AIS or severely-errored frames.
DS3 idle Check the far-end M13 multiplexer and any intermediate devices
for reasons why they might be sending DS3 idle toward the
MX2800.