Fire-Lite ECC-FFT Firefighters Telephone - Manual (Page 23)

ECC-FFT Instruction Manual — P/N LS10031-000FL-E:B 9/4/2013 23
Audio Phone Circuit Installation Installation
Multi-Phone Jack Audio Circuit in Class B Configuration
Figure 2.13 illustrates how to wire the Multi-Phone Jack audio circuit (Class B) and SLC for for
Style 4 (Class B) configuration. In the Multi-Phone Jack configuration, the maximum mini-monitor
contact wiring resistance between to first and last FPJ-F must be less than 100 ohms.
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
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
OU
T
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)
FPJ-F FPJ-F FPJ-F
FFT
+ SLC SLC -
FPJ-F FPJ-F FPJ-F
Contact EOL
Connected
Contact EOL
Disconnected
Contact EOL
Disconnected
Contact EOL
Connected
Figure 2.13 Multi-Phone Jack Audio Circuit in Class B