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4 Names and Functions of Parts
Right side panel
Communications connector panel
LINK1
Inter-unit
control wire 1
(LINK1-U2)
LINK2
Inter-unit
control wire 2
(LINK2-U2)
*1
P-COMM
Pulse meter input
Gas flow meter
(Fuel flow meter)
Electricity meter 1
Electricity meter 2
*1 Factory default setting (alterable)
Ground connector
Connect shield line of
10
0
RS-485.
U1
11
1
U2
ADAPT
(RS-485)
12
2
13
DO-COMM
3
U1
14
DO 1
All alarm output
4
U2
All operation
DO 2
15
5
output
DI-COMM
16
6
DI 1
All stop input
17
7
P1
DI 2
All start input
18
P2
8
DI 3
Spare input
19
P3
9
Connect to
communication
adaptor.
12
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