Beijer Electronics MT 223 EN - Manual (Page 29)

© Elektronik-Systeme LAUER GmbH & Co. KG • 2007 29
DIP-Switch 1:
Schalter Mode
ON RS 485
OFF RS 232 (default)
7.9. Serial connection
(9) COM A SUB-D (male) (8) COM B SUB-D (female)
RS 232 Mode
PIN 9pol Designation Function In / Out
Pin 1 + 5 V Out
Pin 2 TxD,TX,TD Transmit Data Out
Pin 3 RxD,RX,RD Receive Data In
Pin 5 GND Ground
Pin 9 GND Ground
RS 485 Mode
PIN 9pol Designation Function In / Out
Pin 1 + 5 V Out
Pin 2 Data + Data In/Out
Pin 3 Data - Data In/Out
Pin 5 GND Ground
Pin 9 GND Ground