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11
Figure 2-9 DB9 Female Connector
2.6.1 RS-232 (DTE) Pin Definition
Table 2-2 RS-232 Pin Definition
2.6.2 RS-485 Pin Definition
Table 2-3 RS-485 Pin Definition
Pin
RS-232
Description
1
NC
No Connect
2
RxD
Receive Data
3
TxD
Transmit Data
4
NC
No connect
5
GND
Ground
6
NC
No connect
7
NC
No connect
8
NC
No connect
9
NC
No connect
Pin
RS-485
Description
1
NC
No Connect
2
Rx+
Receive Data +
3
Tx+
Transmit Data +
4
NC
No connect
5
SHIELD
Shield
6
NC
No connect
7
Rx-
Received Data -
8
Tx-
Transmit Data -
9
NC
No connect