Honeywell Farenhyt Series Manual page 26

Firefighter's telephone
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Audio Phone Circuit Installation
IFP-FFT
26
+ audio in
- audio in
+ audio out
- audio out
Figure 5.7 Telephone Jack Only Audio Circuit Wired in Class A Configuration
Wiring Requirements for the Audio Telephone Circuit
1 3
2 2
3 1
Do not loop wire under the terminals.
TB1
TB2
Break wire run to provide proper
supervision of communications.
FFT-FPJ
1 3
2 2
3 1
TB1
TB2
FFT-FPJ
1 3
2 2
3 1
TB2
TB1
FFT-FPJ
IFP-FFT Manual — P/N 54708:B3 10/28/2021
Class A wiring

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