Eaton XP-503, Руководство пользователя

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4 Installation
4.8 External connections
XP-503
12/2014 MN048014-EN www.eaton.com
29
4.8.4 Serial interfaces

RS 485/232
One serial interface on a 9-pole SUB-D plug that can be used as an RS 232, RS 422, or RS 485
port, configurable in the BIOS.
1 × SUB-D plug,
9-pole
Pin RS 232 RS 422 RS 485
1 DCD RX + DATA –
2 RXD RX – DATA +
3 TXD TX + N.C.
4 DTR TX – N.C.
5 GND GND GND
6 DSR N.C. N.C.
7 RTS N.C. N.C.
8 CTS N.C. N.C.
9 RI N.C. N.C.
Tab. 7 RS 485/232

Default setting: half-duplex RS 485

RS 232
One serial interface on a 9-pole SUB-D plug that can be used as an RS 232 port.
1 × SUB-D plug,
9-pole
Pin Signal Description Input/Output
1 DCD Data Carrier Detect I
2 RXD Receive Data I
3 TXD Transmit Data O
4 DTR Data Terminal Ready O
5 GND Signal Ground ---
6 DSR Data Set Ready I
7 RTS Request to Send O
8 CTS Clear To Send I
9 RI Ring Indicator I
Tab. 8 RS 232