Instruction manual

FireForce 8 Installation & Operation Manual P/N 52257:B 09/27/2006 13
Function of Input/Output Connections Installation
2.3.8 Reference EOL Resistor (Power Limited)
To accommodate existing Notification Appliance circuits that have EOL resistors of various values,
provisions are made to attach a reference EOL resistor, matching the existing EOL, within the
range of 2.0K to 25.0K ohms. Normally, a 3.9K resistor should be attached to the Ref.
Terminals. All Style Y (Class B) outputs must have EOL resistors of the same value as the
reference resistor. EOL values outside of the 2.0K – 25.0 K range will cause all of the Style Y NAC
output Trouble LEDs to light steady.
2.3.9 Input signal wiring (Power Limited)
The main FACP notification appliance circuit inputs are +IN, -IN. When polarity is reversed on the
main FACP notification appliance circuit, the output circuits on the FIREFORCE 8 will activate
according to their programming. These inputs restore when the Main FACP circuit is restored. +IN
and -IN are internally connected to +OUT and -OUT for connection to devices beyond the
FIREFORCE 8. Should a trouble condition occur, the circuit is opened. If an alarm is received
during trouble the circuit is restored to allow devices beyond the FIREFORCE 8 to be operated.
Signal 1 always activates output Signal Circuits 1 and 2., and depending on the position of switch
SW1-8 can also control output Signal Circuits 3 and 4. Otherwise, Signal 2 controls output Signal
Circuits 3 and 4.
Ref
TB3 Terminals
REF+ REF-
NOTE: When the Strobe Sync. Added mode is selected, and Ckts. 3 and 4 are controlled by Input
1, and a single input is to control both the Horns and the Strobes, The Output of Input 1 should be
connected to the Input of Input 2, and the signal Ckt. continuation or EOL resistor should be
connected to the output of Input 2.
Signal 1
Terminals
1+IN 1-IN 1+OUT 1-OUT
Signal 2
Terminals
2+IN 2-IN 2+OUT 2-OUT