RS422/RS485 Isolator with integrated overvoltage protection, Model 66203
Background information: Control circuits are often electrically isolated. If the controllers are grounded over the control bus and the PC, the entire control circuit might be disrupted by equalizing currents. It must be ensured that the bus is electrically isolated when connected to the PC, or that the PC is isolated by suitable measures such as UPS.
Technical data:
Operating modes:
RS422 RS485 4-wire with automatic control RS485 2-wire with automatic control
Switching time:
approx. 10µs for switching from data send to receive for RS485 automatic control (can be changed on request)
Baud rate:
0..3 Mbaud
Data format:
any format
Signal lines:
RxD A/B, TxD A/B, CTS A/B, DTR A/B
Termination:
Connectable termination network for RS485 operation
Serial connections:
9-pin SUB-D adapters
Galvanic isolation:
Isolation voltage min. 1 KV DC between all terminals
Power supply:
12..24V DC/AC
Current consumption:
No-load: typ. 100 mA @12V DC, 50mA @24V DC Operating: typ. 140 mA @12V DC, 70mA @24V DC
Supply voltage connection:
Plug-in screw terminal, 5.08mm spacing Labeled "L+" and "M"
Ambient temperature:
Storage: -40..+70°C Operating in non-rowed installation: 0..+60°C Operating in rowed installation 0..+50°C
Permissible relative humidity:
0..95% RH (non-condensing)
Housing:
Plastic compact housing, 105x75x22mm
Weight:
approx. 100 g
Delivery:
1x RS422/RS485 isolator, Industry
Please order power supplies separately as accessories
