CH AP TE R 1 - OVER VIEW
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1.4.7 DB9 (Female) – RS485 Serial Ports
Table 1-13 defines the pin-out of the DB9 female connector used with serial ports on the
DX940 when they are configured for the RS485 interface.
Table 1-13. DB9 RS485 Pin-out
Pin
Signal
1
RX_
In
2
RX+
In
3
TX-
Out
TX+
Out
5
GND
Power
6
Not Used
7
Not Used
8
Not Used
9
Not Used
