Fire-Lite ECC-FFT Firefighters Telephone - Manual (Page 22)

22 ECC-FFT Instruction Manual — P/N LS10031-000FL-E:B 9/4/2013
Installation Audio Phone Circuit Installation
Single Phone Jack Audio Circuit in Class A Configuration
Figure 2.12 illustrates a phone jack audio circuit (Class A) and SLC for Style 6 & 7 (Class A) con-
figuration.
0
10
11
12
13
14 15 ADDRESS
LOOP
1
2
3
4
TENS ONES
6 7 8 9
5
0 1
2
3
4
6 7 8 9
5
0
10
11
12
13
14 15 ADDRESS
LOOP
1
2
3
4
TENS ONES
6 7 8 9
5
0 1
2
3
4
6 7 8 9
5
0
10
11
12
13
14 15 ADDRESS
LOOP
1
2
3
4
TENS ONES
6 7 8 9
5
0 1
2
3
4
6 7 8 9
5
TB1 TB2
3
2
1 1
2
3
TB1 TB2
3
2
1 1
2
3
TB1 TB2
3
2
1 1
2
3
SLC
PH
O N E
PH
O N
E
OUT
OU
T
IN
IN
SLC
- +
-
+ -
+
-
+
Figure 2.12 Single Phone Jack Audio Circuit in Class A
Contact EOL
Connected
+ Audio
- Audio
+ Audio
- Audio
+ SLC
- SLC
Caution
For system supervision-
For terminals 2 and 3, do not
use looped wire under
terminals. Break wire run to
provide supervision of
connections.
FPJ-F
FPJ-F
FPJ-F
FFT
+ SLC SLC -
Class A
Wiring