Appendix B Alarms
MX-2100/2104
Installation and Operation Manual
B-2
Alarm Messages
Table B-1. LCD Alarm Messages (Cont.)
Code Message - LCD
Message - Terminal
Alarm
Type
Description
7
PS-B 12V FAIL
PS-B 12V FAILURE
State
One or both of the ±12V voltages
provided by the KPS-B module is
missing or is out of the allowable limits.
Replace the module
8,9
DB 1 CHKSUM ERR
DB 2 CHKSUM ERR
DB 1 CHKSUM ERROR
DB 2 CHKSUM ERROR
Event
The checksum of one of the data bases
stored by the KCL module does not
match the checksum calculated after
power-up. The default data base must
be loaded
10 BANDWIDTH
OVF
BANDWIDTH
OVERFLOW
State
The total bandwidth required for the
active channels exceeds the main link
data rate. Change channel configuration
as required, or increase the main link
data rate
11
ALM BUF OVF
ALARM BUFFER
OVERFLOW
State
The number of alarms stored in the
MX-2100 alarm buffer exceeds the
maximum allowable number (100).
New alarms are now written over
previous alarms
12
FALLBACK CLK USE CLOCK WAS
CHANGED TO
FALLBACK
State
The fallback timing reference source has
been selected for use
13
INTERNAL CLK USE CLOCK WAS
CHANGED TO
INTERNAL
State
The internal oscillator is now used as a
timing reference source, as a result of
the simultaneous failure of both the
master and fallback clock sources
14
CL HDR FAILURE
CL HARDWARE
FAILURE
State
A technical failure has been detected in
the KCL module circuits. Replace the
module
15
REM SYNC LOSS
REMOTE SYNC LOSS,
SLOT i
State
The KML module installed in the
specified slot (ML-A, ML-B) of the
remote MX-2100 unit lost
synchronization. This message is
displayed only when downloading is
enabled
16
DOWNLOAD ERROR DOWNLOAD ERROR
State
Errors are detected in the data received
through the management channel
17
I/O SYNC LOS
I/O SYNC LOSS,
SLOT i
State
The KLS.2 module installed in the
specified I/O slot (1 through 12) of the
local MX-2100 unit lost synchronization