EDWARDS SYSTEMS TECHNOLOGY CMDN - Annunciator;Host Communications Failure; IRC-3 and FCC Communication Issues; LSS4 Communication Issues

CMDN Manual 57
Annunciator/Host Communications Failure
IRC-3 and FCC Mode
JAN 01 01:01:01 M001
TROUBLE 000098
LOCAL TROUBLE
PRI FIRE PANEL FAULT
IRC-3 and FCC Troubleshooting
Problem Possible Cause
CMDN-C/SMDN-C
displaying garbled
characters.
1. CMDN(-C)/SMDN-(C) Baud rate not
matched with source.
CMDN-C/SMDN-C Front
panel switches
inoperative.
1. Key switch set to disable.
2. Key switch filter programmed
improperly.
Point is displayed, but no
message.
1. Message not defined in database.
2. Routing set to all messages.
No message at all when
change of state initiated.
1. Display filter set incorrectly.
Incorrect header type,
but correct message.
1. Wrong type selected for message
(IRC-3).
LCD displays internal
database corrupted.
1. Download process interrupted.
LSS4 Mode
Fault Reporting
All communication and component failures on the Remote Alpha-
Numeric Display Network are ONLY indicated on the display having
address 01. The table below lists the annunciator trouble messages and
their causes.
LSS4 Annunciator Trouble Messages
Message # Description
000001 LSS Drill Test
000002 A/C Power Failure
000003 LSS Battery or Fuse Trouble
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