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
