Fire-Lite ECC-FFT Firefighters Telephone - Manual (Page 8)

8 ECC-FFT Instruction Manual — P/N LS10031-000FL-E:B 9/4/2013
Product Description ECC-FFT Board Layout
1.4 ECC-FFT Board Layout
Figure 1.1 above shows the circuit board that attaches to the cabinet. If you should need to remove
the board assembly for repair, remove the seven mounting nuts which hold the assembly in the cab-
inet. Then lift the control board out of the cabinet.
ON 1
234
5
6
S
L
C
OU
T
S
L
C
IN
P
H
O
N
E
OUT
P
H
ONE
IN
-
+
- +
- +
-
+
-
+
A
B
TROUBLE
NO
C
O
M
NC
1
2
3
4
Autoprogram Accept Status LEDs
Local Handset
piezo
Phone In
Phone Out
SLC IN
SLC Out
mounting stud
mounting studs
Supervised,
Power-Limited
All circuits are inherently power-limited
except the trouble relay
Not
Used
DC
Power
System Trouble Relay
Non Power-Limited
mounting studs
mounting stud
mounting stud
Figure 1.1 Back view of ECC-FFT
DIP Switch
fft
b
rd
.w
m
f
Power Status LED