Actisense OPTO-4 Opto-Isolated NMEA 0183 to RS232 Adapter

The Actisense OPTO-4 is a bi-directional NMEA 0183 (RS422) to RS232 interface adapter that provides safe, isolated connectivity between marine navigation systems and computers or devices with standard RS232 9-pin serial ports. Designed to protect against ground loops and voltage spikes, this adapter uses optical isolation to prevent potentially hazardous voltages on the NMEA 0183 bus from damaging connected PC hardware.

Key Features:

• Opto-isolation providing 2000 volt protection on the PC input line
• Full duplex (two-way) communication for simultaneous data transfer
• NMEA 0183 and RS232 compliant with support for all baud rates up to 115200
• Port-powered design draws power directly from the PC serial port for simple installation
• Overmolded waterproof case with narrow profile fits in tight installation spaces
• Fully shielded construction provides superior noise rejection in commercial environments
• Transient protection and reverse voltage protection on PC lines
• Current limited circuitry protects against cable faults

The OPTO-4 is particularly well-suited for commercial vessels and electrically noisy marine environments where equipment protection is critical. The compact, waterproof design and port-powered operation make installation quick and trouble-free without requiring external power supplies.