Overview
The CON-485-422-EE4 is an industrial grade bi-directional externally powered 2.5K isolated RS232 to RS485/RS422 converter which converts a full-duplex RS232 port to a full-duplex four-wire RS485 or full-duplex four-wire RS422 port. A built-in data direction auto-turnaround feature automatically enables the RS485/RS422 driver when data is present from the RS232 port, eliminating the need for software drivers, making it a true plug-and-play solution for system integrators and maintenance technicians.
Key Features
- 2500V Optical Isolation: The CON-485-422-EE4 is an effective solution for protecting RS232, RS485 and RS422 devices from voltage surges, lightning strikes, ground loop conditions and signal noise problems.
- ESD & Surge Protection: 15KV ESD and 600W surge protection in a 9 pin or RJ45 format.
- External Power Supply: The unit is not reliant on port power so you do not have to worry about the RS232’s ability to power the converter.
- Multiple Connector Options: DB9 female connector on the RS232 serial port, and either a DB9 male connector, RJ45 female connector or terminal block with built-in 120 Ohm termination option.
- Optional 120 Ohm Termination: 120 Ohm termination is recommended if you are exceeding 600 feet in distance, 19.6K baud or in a noisy environment.
Technical Specifications
- Isolation Level: 2500V opto-isolated
- Baud Rate Support: 0 to 115.2K baud
- ESD Protection: 15KV
- Surge Protection: 600W
- RS232 Connector: DB9 female
- RS485/RS422 Connector Options: DB9 male, RJ45 female, or terminal block
- Power Type: Externally powered (not port-powered)
- Operating Mode: Full-duplex RS232 to 4-wire RS485/RS422
- Auto-Turnaround: Yes, built-in data direction sensing
- Distance Extension: Converter can extend the distance of the RS232 for up to 4000 ft (1.2km)
- MTBF: 340,911 Hours
- Housing: Heavy duty steel for industrial mounting
- Temperature Range: -40ÂşF to 185ÂşF (-40ÂşC to 85ÂşC)
Typical Applications
The CON-485-422-EE4 is ideal for:
- Converting legacy RS232 serial devices to RS-485/RS-422 networks in industrial control systems
- Extending serial communication distances in manufacturing and process automation
- Isolating sensitive equipment from electrical noise and ground loop faults
- Retrofit installations requiring long-distance serial communication over twisted-pair cabling
- Integration with PLCs, HMIs, process analyzers, and distributed I/O modules
- Field device communications in harsh environments with ESD and surge threats
Compatibility & Replacements
Compatible With
- Any RS232 serial port (computer, PLC, industrial device)
- 4-wire RS-485 networks and topologies
- 4-wire RS-422 full-duplex systems
- Industrial automation controllers and intelligent devices
- Legacy SCADA and data acquisition systems
- Twisted-pair RS-485/RS-422 field networks
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The CON-485-422-EE4 replaces other SerialComm 4-wire RS485/RS422 converters with similar external power and isolation specifications.
Works With
- RS232 serial communication protocols
- RS-485 (4-wire, full-duplex)
- RS-422 (4-wire, full-duplex)
- Terminal emulation software (HyperTerminal, Putty, etc.)
- Industrial automation software supporting serial devices
- Any SCADA or monitoring application using standard RS232/RS485/RS422 interfaces
