Fire-Lite ECC-FFT Firefighters Telephone - Manual (Page 21)

ECC-FFT Instruction Manual — P/N LS10031-000FL-E:B 9/4/2013 21
Audio Phone Circuit Installation Installation
Single Phone Jack Audio Circuit in Class B Configuration
Figure 2.11 illustrates a single phone jack configuration wiring the audio circuit and SLC for Class
B Configuration. Audio circuits must be connected to FFT phone out terminals for all Class B
audio configurations.
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
SL
C
PH
O
N E
PH
O
N E
OUT
OU
T
IN
IN
SL
C
-
+
-
+
-
+
-
+
Contact EOL
Connected
+ 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.
4.7K , 1/2 watt ELR
(install on last device for
Style Y [Class B]
telephone circuit only)
Figure 2.11 Single Phone Jack Audio Circuit in Class B
FPJ-F
FPJ-F
FPJ-F
FFT
Connected
Not Connected