Unit installation
Chapter 6 Troubleshooting and Diagnostics FCD-E1 Installation and Operation Manual
6-10 Handling Alarms
Table 6-3. FCD-E1 Alarm Messages (Cont.)
Terminal Message LCD Message Alarm
Number
Description Corrective Actions Severity Type
CLOCK WAS
CHANGED TO
MASTER
CLK CHANG TO MST
09 The FCD-E1 switched back to the
clock source selected as the master
source
Normal state - no action required MINOR ON
CRC-4 ERROR CRC ERROR: X
32 CRC-4 errors detected in the main or
sublink receive signal. Updated once
per second
1. Have the link checked.
2. Perform the power-up self-test and replace the
FCD-E1 if a failure is detected
MINOR ON
DATABASE
CHECKSUM ERROR
DB CHKSUM ERR
11 FCD-E1 technical failure (the database
currently stored in the non-volatile
memory of FCD-E1 is corrupted)
1. Use the supervision terminal to enter the INIT DB
command.
2. Turn the FCD-E1 off for a few minutes, and then
turn it back on and read the alarm messages
generated during the power-up self-test. Rplace
the FCD-E1 if a failure is detected
MAJOR ON/OFF
DB SWITCH IS ON DB DW IS ON
06 The DB section 3 of DIP switch S1 is
set to ON (the changes made to the
database will be lost if the unit is
turned off or reset).
1. Remove FCD-E1 cover.
2. Set section 3 on DIP switch S1 to OFF.
MINOR ON
DP ALTERNATE
CALL FAILED
DP ALT CALL FAIL
16 The call attempts to the alternate dial-
out number failed
If the number is not busy, check the modem
connected to the CONTROL DTE connector. If the
called number is often busy, you may also increase the
number of call retries
MAJOR ON
DP DIAL CYCLE
FAILED
DIAL CYCLE FAIL
10 The current cycle of call attempts
failed
Check the modem connected to the CONTROL DTE
connector. If the called numbers are often busy, you
may also increase the number of call retries
MAJOR ON
DP PRIMARY CALL
FAILED
DP PRM CALL FAIL
15 The call attempts to the primary dial-
out number failed
If the number is not busy, check the modem
connected to the CONTROL DTE connector. If the
called number is often busy, you may also increase the
number of call retries
MAJOR ON