BECKWITH ELECTRIC BlueJay M-2911 Manuel d'instructions - Page 10

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M-2911 BlueJay Wireless Data Transceiver
RS-232 Communication
M-2911
DB9S
RX
TX
SGND
RTS
CTS
RS-232 is point-to-point (four wires plus shield) from M-2911 to one IED.
RS-422 Communication
M-2911
6 Pin Terminal
Block P1
SGND
D -
RX
D+
D -
TX
D+
SGND
RS-422 is a dual shielded, twisted pair (four wires plus two shields), from M-2911 to one IED.
1
2
3
4
5
6
7
8
9
Figure 2 RS-232 Pin-out
Shielded Twisted Pair
1
2
3
4
5
6
Figure 3 RS-422 Pin-out
–10–
PC
DB9P
1
2
RX
3
TX
4
5
SGND
6
7
RTS
8
CTS
9
RS-422
Connection
1
SGND
2
D -
TX
3
D+
4
D -
RX
5
D+
6
SGND