Instruction Manual

27
PFC-9000 • 5403535 • REV G • 9/08
ZA-9008 Conventional Zone Wire Terminations
NOTE : MAXIMUM LOOP RESISTANCE SHOULD NOT EXCEED 100 OHMS
4-WIRE Smoke Wiring: The maximum allowable current is 0.2 Amperes. The maximum allowed Voltage Drop is 1 Volt.
Volt drop: Ed = I
t
.
R
1
Ed = starting voltage, I
t
= Total current, R
1
= Resistance
- All jumpers are shipped installed over only 1 pin. If a class A wiring is chosen, the jumper for
the corresponding circuit must be removed over both pins.
- If this is the last circuit adder card installed, move JW5 over both pins.
Note: All devices must be either wired Class A or Class B. The combination of Class A and B wiring is for demonstration purposes only.
Field Wiring Terminals
TYPICAL CLASS B WIRING WITH
END OF LINE RESISTOR
3.9k
EOLR
TYPICAL CLASS A WIRING.
NOTE: EOLR IS NOT USED
FOR CLASS A WIRING.
DWG# PFC-9000-38
INI #1 INI #2 INI #3 INI #4
INI #5 INI #6
INI #7 INI #8
Ω
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)RLE(ECIVEDTSALOT
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2209920190.61
02067405410.01
81065700324.6
610002100630.4
410009100855.2
210040300296.1