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Communication_board_230210.doc
Connections
A more detailed look on the connections between the two Communication boards shows that the T, C and R
has to be connected and only the Communication board in the MASTER is connected to the GSM/PSTN
modem.
T R C
Communication
board
MASTER
Uniflo 1200 no. 1
1
2 3
4 5
6 7
KL 1
KL 2
T R C
Communication
board
SLAVE
Uniflo 1200 no. 2
1 2
3 4
5 6
7
KL 1
KL 2
GSM/PSTN
modem
1
2 3
4
5 6
TL
F1
G
N
D
TL
F
2
Connected to
the GSM/PSTN
modem via the
"Serial to Modem"
cable mounted
on the GSM/PSTN
modem.