Fire-Lite ECC-125DA/E Distributed Audio Amplifiers - Manual (Page 11)

ECC-50/125DA Instruction Manual — P/N LS10027-000FL-E:B 8/13/2013 11
Installation ECC-50DA Remote Amplifier
1.1.6 Data BUS Wiring
This section contains information on how to connect ECC-50DAs (up to 8) onto the main control
Data BUS. Refer to the ECC-50/100 and/or FACP Manual for Data BUS specifications. Wire the
Data BUS from TB12 on the main control board to the ECC-50DA shown in Figure 1.7 or
Figure 1.8.
ON 123
4
5
OUT
– +
IN
– + – + A B
SBUS
5
ECC-50/100
main control board
Supervised,
Power-limited
Figure 1.7 Data BUS Connections of the ECC-50DA
50
dad
at
aw
ir
e.
w
m
f
ON 12
34
5
OUT
– +
IN
– + – + A B
SBUS
O N 1
2
3
4
5
OUT
– +
IN
– + – + A B
SBUS
Supervised,
Power-limited
To next
ECC-50DA
(max. 8)
Figure 1.8 Connecting Multiple ECC-50DAs to the Data BUS
ECC-50/100
main control board
5
0d
am
ultid
a
ta
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