Interface converter ICM4
From RS232 to RS485 / RS422
Product discontinuation as of 01.04.2026
The ICM40030 will be replaced by the HD67118.
- Cost-effective converter from RS232 to RS485/RS422
- Power supply from 9 to 32 VDC
- 3 LEDs for RXD, TXD and power supply
- Simple mounting on C-rail or DIN rail
The ICM4 interface converter can be used to connect devices with an RS232 interface to devices with an RS485 or RS422 interface. Both data formats must correspond to each other. 3 LEDs on the front indicate whether the power supply is present (green LED lights up) and whether data is being sent (TXD LED flashes) or received (RXD LED flashes) via the RS232 interface. A voltage supply of 9 to 32 VDC is required. The ICM4 is simply snapped onto a C-rail or DIN rail.
RS232
RXD: max. +/- 30 VDC. logic 1: < 0,8 VDC, logisch 0: > 2.4 VDC.
TXD: logic 1: -8 VDC (typ.), logic 0: +8 VDC (typ.)
RS485
Differential voltage at the output: max. +/-5 VDC (without load).
Differential voltage at the input: max. +/-5 VDC.
Logic 1: < -0,2 VDC, logisch 0: > +0.2 VDC.
Up to 32 RS485 receivers can be operated in parallel.
Maximum cable length
RS232: 15 m. RS485: 1200 m.
Baud rate
min. 9600 baud, max. 19200 baud.
Power supply
9 - 32 VDC, max. 75 mA.
Ambient conditions
Operating temperature: 0°C...+50°C. Above 26 VDC supply: 40°C. Storage temperature: -40...+75°C. 85% relative humidity.
Electromagnetic compatibility CE compliant
- Interference emission: EN 50 081-2
- Immunity: EN 50 082-2.
- UL Recognized: E179259
Connection
via removable screw terminals.
Housing
Sturdy plastic housing.
Dimensions
W 25 mm x H 98 mm x D 79 mm.
Weight
approx. 90 g.
Scope of delivery:
Device, operating instructions.
Customs tariff number:
8504 40 95
Manufacturer:
Red Lion Controls, USA.
Contact
Request form
