3.0 WIRING THE IDU
See Table 1 for information regarding external wiring, jumpers, LEDs, etc.
3.1 Signaling Line Circuits
A. Class A, Style 6, 4-Wire Wiring Instructions
• Connect an EOL-E End of Line device on Terminals 2 and 3 or 6 and 7, depending on the appropriate
circuit.
• Connect field wiring to the addressable initiating/control devices as shown in Figure 3.
• Be sure to observe polarity.
• Maximum allowable resistance in the field wiring is 40 ohms per circuit including sub-loops and remote
zone modules. Use untwisted, unshielded pair cable.
• Maximum capacitance 0.2 uf.
Designation Description Comments
FIELD WIRING CONNECTIONS
TB1-1 Class B, Style 4 (+) Class B, Style 4, or Class A, Style 6
TB1-2 Class A, Style 6 return (+) Signaling Line Circuit.
TB1-3 Class A, Style 6 return ( - ) (Circuit 1)
TB1-4 Class B ,Style 4 ( - )
TB1-5 Class B, Style 4 (+) Class B, Style 4, or Class A, Style 6
TB1-6 Class A, Style 6 return (+) Signaling Line Circuit.
TB1-7 Class A, Style 6 return ( - ) (Circuit 2)
TB1-8 Class B, Style 4 ( - )
JUMPERS
W1 Factory use. (OUT )
W2 3-pin (2 position) CPM Degrade operation:
Jumper OUT - Modules do not energize
Jump pins 1, 2 - Modules energize, can be silenced
Jump pins 2, 3 - Modules energize, cannot be silenced.
LEDs
Loop 1 Trouble Yellow Lights to indicate trouble in Signaling Line Circuit 1.
Loop 1 Alarm Red Lights to indicate alarm in Signaling Line Circuit 1.
Loop 2 Trouble Yellow Lights to indicate trouble in Signaling Line Circuit 2.
Loop 2 Alarm Red Lights to indicate alarm in Signaling Line Circuit 2.
SWITCHES
SW-1 rotary 16-position address switch
DISCONNECT (SW-2) 2-pos. slide Disconnect/walk test switch for Signaling Line Circuit 1.
DISCONNECT (SW-3) 2-pos. slide Disconnect/walk test switch for Signaling Line Circuit 2.
CONNECTORS
J4 FCINET
®
Communication from J4 of previous unit to J4 of next unit.
J7 4-wire
(rd-blk-yel-gry) Power from J7 of previous unit to J7 of next unit.
Table 1 IDU Wiring, Jumpers, LEDs, etc.
NOTE: Only FC-ID, FCID-X approved modules listed in Section 1.2 can be used on the signaling line
circuits.
9000-0437 8 of 12
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