System 500 (UL 8th)
Figure A.5 illustrates the configuration of LDMs to annunciate alarms and troubles for up to 24 zones with the first eight points (J5: P1
through P8 and J6: P1 through P8) dedicated to System 500 functions.
Figure A.6 illustrates the configuration of LDMs to annunciate alarms and troubles for up to 24 zones.
28
Address #1
LDM-32
System Status Indicators *
1st LDM-E32
9 - 12
Alarm
T rouble
J5
Supervisory (Yellow LED)
not used
Signals Silenced (Yellow LED)
System Trouble (Yellow LED)
not
System Alarm (Red LED)
used
J5
Figure A.5 Alarm and Trouble Points Operation
Address #1
LDM-32
1 - 4
1st LDM-E32
17 - 20
Alarm
T rouble
J5
Figure A.6 Alarm/Trouble Operation with 8-Point Shift
1 - 4
17 - 20
13 - 16
Alarm
T rouble
Alarm
T rouble
Alarm
J6
OUTPUTS
J7
view of LDM-32
* System Status Indicators
NAC Ckt #1 ON (Green LED)
NAC Ckt #2 ON (Green LED)
Municipal Tie ON (Red LED)
Alarm Relay ON (Red LED)
NAC Ckt #1 Trbl (Yellow LED)
NAC Ckt #2 Trbl (Yellow LED)
Municipal Tie Trbl (Yellow LED)
Alarm Relay Trbl (Yellow LED)
J6
OUTPUTS
13 - 16
5 - 8
9 - 12
not used
21 - 24
Alarm
T rouble
Alarm
T rouble
Alarm
J6
OUTPUTS
J7
LDM Series Instruction Manual — P/N 15885:H3 8/12/2019
Annunciator Operation
5 - 8
21 - 24
T rouble
J8
T rouble
J8