Actisense NMEA 0183 PC Opto-Isolator Cable with RS232 DB9 Female Connector

NMEA 0183 PC OPTO-Isolator Cable, RS232 DB9 Female, Shielded (Isolated to PC)

Add isolation to an RS232 port to protect against ground loops. The OPTO-4 provides a safe and low cost way of connecting an RS422 (NMEA 0183) system to an RS232 (PC COM port) system, or any other device with a standard RS232 9-pin port.

The OPTO-4 provides comprehensive galvanic OPTO-isolation to protect the PC input/receiver, plus important spike suppression to improve the PC output/transmitter protection. Initially designed for systems wishing to receive NMEA 0183 data without the risk of ground loop damage, the flexible OPTO-4 can be used to interface any RS422 and standard RS232 connection, whilst powering itself from the RS232 port, making installation simple and very quick.

The Actisense opto isolator design integrates an over-molded case for excellent water resistance and a small footprint for installation into tight spaces.

Features:

• One RS422 OPTO-isolated input


• One RS422 (NMEA 0183) output


• Up to 115200 baud


• Port powered


• Shielded cable and case


• Protects PC input/receiver from damage


• Water resistant cable.


• Ruggedized over-molded case suitable for harsh environment


• Quick and easy to install

Technical Specifications:

Electrical

• NMEA Listener / Input Isolation - 2kV Opto-Isolation between Red / Black NMEA Input Pair and all other Connections


• NMEA Listener / Input Voltage - +/-15V Continuous Maximum, +/-35V Max < 1 Second


• NMEA Listener / Input Signal Thresholds - Logic 0 +2V to +15V, Logic 1-15V to 0V


• NMEA Talker / Output Voltage Current - Dependent on Host RS232 Interface. Typically +/-5V to +/-15V @ 10mA Max


• RS232 Voltage on Host - +/-7V to +/-15V


• RS232 Port Total Current Consumption - 2mA to 5mA depending on RS232 Voltage


• Speed / Baud Rate - 4800 to 115200 Baud

Mechanical

• Housing Material - PVC Black


• Thumb Screw Material - PVC Orange


• Screw - Steel, Nickel Plated, M2.8 Thread


• DB9 Connector - 9 Pin Female


• Cable Length - 1.5m


• Cable Wire - 22AWG (17/34AWG) Tinned Stranded Copper


• Cable Jacket - PVC


• Shield - Internal Copper Foil Shield


• Cable Outer Diameter - 5.5mm

Approvals and Certifications

• Operating Temperature - -20C to +70C


• Electrical Specification - Meets IEC 61162-2


• Weight - 100g


• Guarantee - 3 Years


• UL Certification - Cable E137250

The Actisense NMEA 0183 PC Opto-Isolator Cable (Part Number: OPTO-4) offers a reliable and cost-effective solution for safeguarding your computer's RS232 port from ground loop issues. Designed with galvanic OPTO-isolation, this cable protects your PC input/receiver from voltage spikes and electrical interference, ensuring data integrity and hardware longevity. Its shielded design and water-resistant case make it suitable for use in challenging environments, including marine and industrial settings.
The cable features a 9-pin female DB9 connector and a 1.5-meter length, allowing flexible installation options. It supports data speeds up to 115200 baud, making it compatible with most NMEA 0183 and RS422 systems. The device is port-powered, simplifying setup by drawing power directly from the RS232 port, and includes an internal copper foil shield to minimize electromagnetic interference. Its rugged over-molded PVC housing enhances durability and water resistance, making it ideal for harsh conditions.
Designed to interface NMEA 0183 systems with standard RS232 ports, the OPTO-4 provides critical spike suppression and isolation between connected devices. It features a robust steel, nickel-plated M2.8 screw for secure connections and is certified to meet IEC 61162-2 standards. With a weight of approximately 3.5 ounces, this cable is lightweight yet durable, and it is backed by a 3-year guarantee for peace of mind. Whether used in marine navigation, industrial automation, or other RS232 applications, this isolator cable ensures reliable data transmission while protecting your equipment from electrical faults.

Features:

• One RS422 OPTO-isolated input for enhanced electrical protection

• One RS422 (NMEA 0183) output for seamless data transfer

• Supports data rates up to 115200 baud for versatile applications

• Port-powered design for simple installation without external power sources

• Shielded cable and water-resistant case for durability in harsh environments

• Protects PC input/receiver from voltage spikes and ground loop damage

• Rugged over-molded PVC housing suitable for industrial use

• Easy to install with standard steel, nickel-plated M2.8 screw

• Meets IEC 61162-2 certification for reliable marine communication