Shanghai ZLAN Information Technology Co., Ltd Tel: +86-17321037177 http://www.zlmcu.com
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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
Interface Standard
meet EIA/TIA RS232/RS485 standard
Physical Interface
RS232: DB9 (hole); RS485: Terminal
Serial Port Type
RS485: two-line (A, B); RS232: three line (TXD, RXD, GND)
Communication Rate
0~200Kbs
(
self-adaptive
)
Support Qty.
each RS485 port support up to 256 node
Communication Distance
1200m (9600bps); higher rate shorter distance
Isolation Voltage
RS485 isolation voltage: 2500V
Static Protection
RS485: 12KV
Operation Mode
half-duplex transparent transmission
Input Voltage
DC 9~30V
Work Temperature
-45
℃
~+85
℃
Environment Humidity
<95%RH
Transmission Medium
normal parallel lines or twisted-pair