Telephone jack only audio circuit – Fire-Lite ECC-FFT Firefighters Telephone User Manual

Page 25

Advertising
background image

ECC-FFT Instruction Manual — P/N LS10031-000FL-E:B 9/4/2013

25

Audio Phone Circuit Installation

Installation

Telephone Jack Only Audio Circuit

The FFT can also be configured using only the Fire Fighters Phone Jack (FPJ-F). In this configura-
tion, the MMF-301 module is not required for system operation. To configure the FFT for Tele-
phone Jack only, the DIP Switch position 1 must be off (SLC Devices not Installed). See Table 2.1
on page 13.

Audio wiring for this configuration is detailed below. See Figures 2.15 and 2.16.

TB1

TB2

3
2
1

1
2

3

TB1

TB2

3
2
1

1
2
3

TB1

TB2

3
2

1

1

2
3

SL

C

PH

O

N

E

PH

O

N

E

OUT

OU

T

IN

IN

SL

C

-

+

-+

-+-

+

+ Audio
- Audio

Caution
For system supervision-
For terminals 2 and 3, do not
use looped wire under
terminals. Break wire run to
provide supervision of
connections.

4.7K

, 1/2 watt ELR

(install on last device for
Style Y [Class B]
telephone circuit only)

Figure 2.15 Telephone Jack Only Audio Circuit in Class B

FPJ-F

FPJ-F

FPJ-F

FFT

Advertising