5: Telephone Jack Only Audio Circuit - Honeywell Farenhyt Series Manual

Firefighter's telephone
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Wiring Requirements for the Audio Telephone Circuit
5.2.5 Telephone Jack Only Audio Circuit
The FFT can also be configured using only the FFT-FPJ. In this configuration, the IFP-MINIMON module is not required for system opera-
tion. To configure the FFT for telephone jack only, DIP Switch position 1 must be off (SLC Devices not Installed). See Table 3.1.
Figure 5.6 and Figure 5.7 show audio wiring for this configuration.
IFP-FFT
IFP-FFT Manual — P/N 54708:B3 10/28/2021
+ audio
- audio
Figure 5.6 Telephone Jack Only Audio Circuit Wired in Class B Configuration
1 3
2 2
3 1
TB1
TB2
Do not loop wire under the terminals.
Break wire run to provide proper
supervision of communications.
FFT-FPJ
1 3
2 2
3 1
TB2
TB1
FFT-FPJ
1 3
2 2
3 1
TB2
TB1
FFT-FPJ
Audio Phone Circuit Installation
4.7kΩ, 1/2 watt ELR
Install on the last
device on a Class B
telephone circuit only.
25

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