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Wiring Requirements
Appendix E
Connecting external system accessories to the FIRE•COMMAND•25/50 main circuits must be carefully considered
to ensure proper operation. It is important to use the correct type of wire, wire gauge and wire run length per each cir-
cuit. Refer to the following table to specify wire requirements and limitations.
NOTE: If an SLC loop is to be run in conduit with FIRE•COMMA ND•25/50 Notification A ppliance Circuits, the risk
of encountering problems can be greatly reduced by using twisted, shielded cable on the SLC and NACs.
FIRE•COMMAND•25/50 Wiring Requirements
TABLE E-1:
CIRCUIT CONNECTIONS
Circuit Type
AC Power
FC-PSM(E) Module
TB1 (nonpower-limited)
DC Power (use only if
FC-PSM(E) is not
installed) Main Board
TB3
(power-limited)
Audio Output
FCAAM25 Module TB1
(power-limited)
CMD1 and CMD2
Main Board TB2 and
TB5
(nonpower-limited)
Main Board TB6
Master Command Bus
Reverse Polarity (power-
limited)
Trouble Relay Main
Board TB1
(nonpower-limited)
AC Los Relay
FC-PSM(E) Module
TB2 (nonpower-limited)
1. Refer to NEC Standards.
2. Twisted, shielded wire is recommended for maximum protection against EMI and AFI emissions and susceptibility.
3. Must also meet NFPA 72 Standards for minimum and maximum sound levels.
48
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Wiring Requirements
Wire Type &
Circuit Function
Limitations
Primary Power Input to
FC-PSM(E) Module,
AC Voltage
Regulated, Power-limited
Untwisted,
DC power to Main Board,
unshielded or
4.2 amps maximum,
19.1 - 26.4 volts
Untwisted,
Notification Appliance
unshielded or
Circuit
Untwisted,
Triggers
unshielded or
FIRE•COMMAND
Output Trigger for
Multiple
Untwisted,
FIRE•COMMAND
unshielded
configurations
Trouble Output
Current 2 amps
AC Loss Output
Current 2 amps
Document #50580
firealarmresources.com
WIRE REQUIREMENTS
Recommended Maximum
Distance (Feet)
Power Supplied must be 120 VAC,
60 HZ, 1.0 amps for FC-PSM and
1
See Note
220/240 VAC, 50 Hz, 0.5 amp for
FC-PSME (see Note
1
See Note
Determined by Voltage range in
Standby and Alarm
twisted,
shielded
2
See Note
See Note
twisted,
shielded
Depends on Output (trigger)
1
See Note
Circuit
9 - 32 VDC, 1.6 mA for polarity
twisted,
reversal relay must be rated at 0.5
shielded
amp, 24 VDC
130 ohms maximum
Maximum
Depends on Input Circuit
Maximum
Depends on Input Circuit
Rev.C
8/12/97
P/N 50580:C
Wire Gauge
Terminals Support
12-18 AWG
1
(see Note
)
1
)
Terminals support
12-18 AWG
1
(See Note
)
3
12 - 18 AWG
12 - 18 AWG
12 - 18 AWG
12 - 18 AWG
12 - 18 AWG
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