Installation Power-limited Wiring Requirements
24 MS-2/MS-4 PN 51512:E 01/18/05
2.5 Power-limited Wiring RequirementsPower-limited and nonpower-limited circuit wiring must remain separated in the
cabinet. All power-limited circuit wiring must remain at least 0.25” (6.35 mm) away
from any nonpower-limited circuit wiring. Furthermore, all power-limited and
nonpower-limited circuit wiring must enter and exit the cabinet through different
knockouts and/or conduits. A typical wiring diagram for the MS-4 is illustrated below.
ON
1 2 345678
ON
1 2 345678
ON
1 2 345678
SUPERVISORY
SUPERVISORY
SUPERVISORY
SUPERVISORY
TROUBLE
TROUBLE
TROUBLE
TROUBLE
MAINTENANCE
MAINTENANCE
MAINTENANCE
MAINTENANCE
FIRE ALARM
FIRE ALARM
AC
POWER
NAC
DISABLE
NAC
FAULT SYSTEM
TROUBLE
POWER
TROUBLE
WALK
TEST
ALARM
SILENCE
ZONE
DISABLE
FIRE ALARM
FIRE ALARM
RESETWALKTESTALARMSILENCEACKZONE 1
ZONE 2
ZONE 3
ZONE 4
ZONE
ENABLE/DISABLE
34
2
1
TB1TB2TB3TB5TB6TB7+ - + -
Nonreset ResettableC NC NOALARM SUPVC NC NOJ8J7J9TB8JP1SW1BATTERYHOT NEUT EARTHTRANSFORMER 1TRANSFORMER 2SW2 SW3JP2EARTHBATTC HG
4XLBTB1A+ A- A+ A -
NAC 1 NAC 2CLASS A CLASS A
A+ A- A+ A -
ZONE 1 ZONE 2CLASS A CLASS A
A+ A- A+ A -
ZONE 3 ZONE 4CLASS A CLASS A
SIGNAL TRANSFORMER
XX-XXX-XXXXXX Rev X
SIGNAL TRANSFORMER
XX-XXX-XXXXXX Rev X