Honeywell Q7055A - Page 43

BUILDING NETWORK ADAPTER BNA-1C/2CS/2DN
EN1B-0198GE51 R1004B 43
Figure 7-2 shows how to configure a Null Modem
Cable DB9F.
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
DCD
RxD
TxD
DSR
DTR
GND
RTS
CTS
9 9
RI
DCD
RxD
TxD
DSR
DTR
GND
RTS
CTS
RI
Figure 7-2: Signal connections for DB9F Null Modem Cable