26 LDM Series Instruction Manual — P/N 15885:H3 8/12/2019
System 500 (UL 8th) Annunciator Operation
System 500 CPU Annunciator Point Assignments to LDMs
System 500 Option Modules Annunciator Point Assignments to LDMs
System 500 CPU Points LDM Alarm Red LED LDM Trouble/Supv Yellow LED LDM Control Switches
Annunciator Point #1
a
1 If the 8-Point Shift (DIP switch #4 of SW3) is set ON, the eight functions (ACK, SIL, RESET, LAMP TEST, NAC1, NAC2, MUNTIE,
RELAY) will be shifted out of annunciator points 1 through 8. These eight points would then annunciate the status of the first eight zones.
Indicates System Alarm Indicates System Trouble Functions as an
ACKNOWLEDGE
Annunciator Point #2 not used Indicates that signals have been
silenced
Functions as a SIGNAL
SILENCE
Annunciator Point #3 not used not used Functions as a SYSTEM
RESET
Annunciator Point #4 not used Indicates Supervisory Condition not used
Annunciator Point #5 Indicates that Notification Circuit 1
has been activated
Indicates trouble status of circuit Controls Notification Circuit 1
Annunciator Point #6 Indicates that Notification Circuit 2
has been activated
Indicates trouble status of circuit Controls Notification Circuit 2
Annunciator Point #7 Indicates that the Remote Signaling
Municipal Tie has been activated
Indicates trouble status of circuit Controls Remote Signaling
Municipal Tie
Annunciator Point #8 Indicates that the Alarm Relay has
been activated
Indicates Module Trouble, Power
Failure, or Disabled Circuit(s)
Controls Alarm Relay
System 500 CPU Points LDM Alarm LED Red LDM Trouble/Supv LED Yellow LDM Control Switches
a
1 Optional control switches are active only if all of these conditions are met:
a) Receive Only (DIP Switch #5) is set to OFF.
b) Switch Inhibit (DIP Switch #7) is set to OFF.
IZ-4, IZ-4A, IZ-8 Alarm Status per Circuit
b
2 If an IZ-4, IZ-4A or IZ-8 circuit is programmed on the System 500 as a supervisory point, both the red and yellow LEDs will be
illuminated for a supervisory condition. Illumination of the yellow LED alone indicates a trouble condition (open circuit) on the IZ
supervisory circuit.
Trouble Status per Circuit not used
IC-4, ICE-4, CR-4L Indicates Activation Indicates Trouble per Circuit Control Notification Circuit
CR-4, CRE-4, CR-4L Indicates Activation Indicates Trouble per Circuit Controls Relays
TC-2, TC-4 Indicates Activation Indicates Trouble per Circuit Remote Switch Functions
Alarm and Trouble Mode
without 8-Point Shift
Alarm and Trouble Mode
with 8-Point Shift
LDM Switch
Position
LDM-32 1st LDM-E32 LDM Switch
Position
LDM-32
1 ACKCircuit 91Circuit 1
2 SIG. SIL. Circuit 10 2 Circuit 2
3 RESET Circuit 11 3 Circuit 3
4 not used Circuit 12 4 Circuit 4
5 NAC 1 Circuit 13 5 Circuit 5
6 NAC 2 Circuit 14 6 Circuit 6
7 MUN TIE Circuit 15 7 Circuit 7
8 Alarm Relay Circuit 16 8 Circuit 8
9 Circuit 1 Circuit 17 9 Circuit 9
10 Circuit 2 Circuit 18 10 Circuit 10
11 Circuit 3 Circuit 19 11 Circuit 11
12 Circuit 4 Circuit 20 12 Circuit 12
13 Circuit 5 Circuit 21 13 Circuit 13
14 Circuit 6 Circuit 22 14 Circuit 14
15 Circuit 7 Circuit 23 15 Circuit 15
16 Circuit 8 Circuit 24 16 Circuit 16
Table A.1 LDM Series Switch Control Functions
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