Product specifications
WuT 66201
RS422/RS485 Isolator, 1kV isolation voltage
The Isolator model 66201 enables galvanically isolated connection between RS422 devices and RS485 bus systems.
Problem of compensating currents:
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.
Product properties:
Electrical isolated connection of RS422 devices and RS485 bus systems.
Automatic control in RS485 operation
No re-configuration of transmission parameters required
High transmission speeds of up to 3 Mbaud
Supply voltage 12..24V AC/DC
Careful circuit design and generous component dimensioning ensure more than 25 years of service life
Related products:
RS422/RS485 Isolator with integrated overvoltage protection, Model 66203
Connections and displays:
- Serial ports: RS422/RS485 interfaces, selectable, 9-pin SUB-D adapter
- 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)
- Termination: Connectable termination network for RS485 operation
- Baud rate: 0..3 Mbaud
- Data format: any format
- Galvanic isolation: min. 1kV DC between all terminals
- Supported signals: RxD, TxD, CTS, DTR
- Supply voltage: 12..24V AC/DC (±10%)
- Current consumption: typ. 70mA @12V DC, 35mA @24V DC
- Supply connection: Plug-in screw terminal, 5.08mm spacing, Labeled "L+" and "M"
- Displays: 1 LED Power, 1 LED Data
Housing and other data:
- Housing: Plastic housing for top hat rail installation, 105 x 22 x 75mm (L x W x H)
- Weight: approx. 100g
- Ambient temperature: Storage: -40..+70°C, Operating in non-rowed installation: 0..+60°C, Operating in rowed installation 0..+50°C
- Permissible relative humidity: 5..95% RH (non-condensing)
- MTBF: 486.382h @25°C per MIL-HDBK-217
- Life expectancy: > 25 years at 25°C ambient temperature
- Scope of delivery: RS422/RS485 isolator, Industry
**Please order power supplies separately as accessories**
- Wiesemann & Theis product -
