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2. Feature
1) RS485 master port and slave port has 2500V voltage isolation protection.
2) RS485 master port and slave port support 256 slave stations.
3) The back is equipped with guide installation card slot, suitable for guide
installation.
4) 9~24V wide range input.
5) RS485 opposite connection indicator. The CH1~CH4 indicator is always on when
line A and line B are opposite connected.
3. Technical parameter
meet EIA/TIA RS232/RS485 standard
RS232: DB9 (hole); RS485: Terminal
RS485: two-line (A, B); RS232: three line (TXD, RXD, GND)
each RS485 port support up to 256 node
1200m (9600bps); higher rate shorter distance
RS485 isolation voltage: 2500V
half-duplex transparent transmission
normal parallel lines or twisted-pair