RS232 - RS422/RS485 Converter
CNV 1413
Highlights
- Low-cost converter
- Easy installation
- Flexible power supply 8 to 36 VDC
- Communication distance up to 1000 m
- Data rate max. 120 kBaud
Technical Data
Configuration of the Module
The configuration can be setup at factory or by the user by soldering little connections. So the user should have some experience in soldering for changing the configuration.
- Operation mode RS485 or RS422
- Operation as 2-wire RS485 or as 4-wire RS422
- Transmitter control DTR or RTS of RS232
- Transmitter control permanent, high- or low-active
- Receiver control permanent on or only when transmitter is off
- Pinning DCE or DTE (DCE: direct connection to DTE/PC/notebook; DTE: direct connection to DCE, TxD and RxD exchanged)
Bus Termination
The module consists of 2 termination resistors of 120 Ohm each. These resistors can be separately activated by external wires. One resistor is to be used for the receiver, the other for the transmitter. Only one of these resistors is to be used in RS485 applications.
Technical Specifications
| Max. Baud Rate | max. 120 kBaud |
|---|---|
| RS232 | |
| – Used signals | TxD, RxD, DTR/RTS, GND |
| – Shorted signals | RTS + CTS, DTR + DSR + DCD |
| RS485/RS422 | |
| – Transmitter control | over DTR/RTS of RS232 or permanent |
| – Termination resistors | 2× 120 Ohm, separately switchable |
| Supply voltage | 8 to 36 V DC |
| Power consumption | 70 mA at 8 VDC, 20 mA at 36 VDC (maximal) |
| Connection | on SUB-D connector of RS422/485 |
| CE | EMC 2014/30/EU RoHS 2011/65/EU + 2015/863 LVD 2014/35/EU |
| Operating temperature | 0–50 °C |
| Storage temperature | -20 to +70 °C |
| Dimensions | 55 × 18 × 62 mm |