Supervision Input - Tb1, Terminals 6 & 7; Ul Power-Limited Wiring Requirements - Honeywell NOTIFIER LDM Series Instruction Manual

Lamp driver module
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Wiring Considerations
4.7 Supervision Input - TB1, Terminals 6 & 7
The Supervision Input, which requires a normally-closed condition, can be used for supervising power sources or other devices. It must
be power-limited. If employed, a change in status will be transmitted to the host control panel in the event of device failure or restoral. If
not used, a jumper must be installed across these terminals on TB1. A trouble signal will be registered by the control panel if a short cir-
cuit does not exist across terminals 6 & 7.

4.8 UL Power-Limited Wiring Requirements

Power-limited and nonpower-limited circuit wiring must remain separated in the cabinet. All power-limited circuit wiring must remain at
least 0.25" away from any nonpower-limited circuit wiring. Furthermore, all power-limited circuit wiring and nonpower-limited circuit
wiring must enter and exit the cabinet through different knockouts and/or conduits. A typical wiring diagram for the LDM-R32 is shown
18
EIA-485 IN (-)
EIA-485 OUT (-)
EIA-485 OUT (+)
EIA-485 IN (+)
N.C. Supervision
Common In (-)
Common Out (-)
Power In (24 VDC)
Power Out (24 VDC)
Earth Ground
Host FACP
EIA-485 (-)
EIA-485 (+)
Figure 4.5 Wiring Multiple LDMs - 6,000 ft. (1,800 m) max run
Device to be Supervised
Normally Closed
5VDC @
Trouble Contacts
0.5mA
Figure 4.6 Wiring Supervision Terminals
T B2
4
3
2
1
T B1
7
Inputs
6
5
4
3
2
1
Last LDM
First LDM
T B2
-
-
120W ELR
Part #71244
+
+
When not using the Supervision input,
jumper terminals 6 & 7 together.
T B1
T B1
Supervision
7
Input
6
5
4
3
2
1
LDM Series Instruction Manual — P/N 15885:H3 8/12/2019
Supervision Input - TB1, Terminals 6 & 7
T B2
-
-
+
+
Supervision
7
Input
6
5
4
3
2
1

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