J7 Transformer 
     Connector
120 VAC, 2.3A
Earth
Neutral
Hot
(supervised,
nonpower-limited)
J8 Battery Connector
(supervised, nonpower-limited)
 18 Amp Hour max.
Charger Fault LED
Battery Fault LED
Earth Fault LED
SW1, SW2 and SW3
Programming DIP Switches
Note: Factory-installed cover 
removed for illustration 
purposes only!
24 VDC Special Application
Resettable Power
500 mA max. (nonsupervised, 
power-limited)
- 24 VDC
+ 24 VDC
NAC (4.7KW, ½ watt ELR)
2.5A max. 
(supervised, power-limited)
B-
B+
IDC (4.7 KΩ, ½ watt ELR)
(supervised, power-limited)
Zone 2 B-
Zone 2 B+
Zone 1 B-
Zone 1 B+
Trouble Relay (fail-safe)
2 amps @ 30 VDC
 
(nonsupervised)
Common
Trouble (Normally Open)
Normal (Normally Closed)
Alarm Relay
2 amps @ 30 VDC
(nonsupervised)
Common
Normally Closed
Normally Open
ms2bord.wmf
JP3 - Cut to disable 
Ground Fault 
detection (only with 
approval of AHJ)
J3 and J5
4XTMF Option 
Module 
Connectors
Module Placement Supervision (if installed)
JP1 - cut to supervise module on J3 & J5