PRELIMINARY: TR-FFT Fire Fighter’s Telephone Manual — LS10309-001TR-E:A 04/28/2021
27
Wiring Requirements for the Audio Telephone Circuit
Audio Phone Circuit Installation
5.3.5 Telephone Jack Only Audio Circuit
The TR-FFT can be configured using only the Fire Fighter’s Phone Jack (TR-FPJ). In this configuration, the TR-MINIMON
module is not required for the System operation. To configure the TR-FFT for only the Telephone Jack, the DIP Switch posi-
tion One must be set to OFF (SLC Devices not Installed). See Table 3.1.
See Figure 5.6 and Figure 5.7 to view the detail of the Audio wiring for this configuration.
Figure 5.6 Telephone Jack Only Audio Circuit Wired in Class B
Figure 5.7 Telephone Jack Only Audio Circuit Wired in Class A
Caution!
For System Supervision-
For Terminals 2 and 3,
do not use looped wire under the
terminals. Break wire run to provide
supervision of communications.
4.7K W, 1/2 watt ELR
(Install on the last device
for Class B telephone
circuit only).
TR-FFT
TR-FPJ
TR-FPJ
TR-FPJ
TR-FPJ
TR-FPJ
TR-FPJ
TR-FFT
Summary of Contents for TR-FFT
Page 33: ...Cut Along the Dotted Line ...
