OPTO-4 Serial Opto Isolator

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.
Where To Buy

OPTO-4 NMEA 0183 to RS232 Opto-Isolator

OPTO-4 NMEA 0183 to RS232 Opto-Isolator

OPTO-4 NMEA 0183 to RS232 Opto-Isolator

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

Ordering Information

(Part number/s)

  • OPTO-4

When isolation is required in both directions and/or the PC doesn’t have an RS232 port, the Actisense USG-2 offers bi-directional isolation in a USB to RS422 (NMEA 0183) form.

FEATURES

  • One RS422 OPTO-isolated input
  • One RS422 (NMEA 0183) output
  • Up to 115200 baud
  • Port powered
  • Shielded cable and case

BENEFITS

  • Protects PC input/receiver from damage
  • Water resistant cable.
  • Ruggedized over-moulded case suitable for harsh environment
  • Quick and easy to install
Electrical
NMEA Listener / Input Isolation2kV 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 ThresholdsLogic ‘0’ +2V to +15V, Logic ‘1’-15V to 0V
NMEA Talker / Output Voltage & CurrentDependant on Host RS232 Interface. Typically +/-5V to +/-15V @ 10mA Max
RS232 Voltage on Host+/-7V to +/-15V
RS232 Port Total Current Consumption2mA to 5mA depending on RS232 Voltage
Speed / Baud Rate

 

4800 to 115200 Baud

 

Mechanical
Housing MaterialPVC Black
Thumb Screw MaterialPVC Orange
ScrewSteel, Nickel Plated, M2.8 Thread
DB9 Connector9 Pin Female
Cable Length1.5m
Cable Wire22AWG (17/34AWG) Tinned Stranded Copper
Cable JacketPVC
ShieldInternal Copper Foil Shield
Cable Outer Diameter

 

5.5mm

 

Approvals and Certifications
Operating Temperature-20°C to +70°C
Electrical SpecificationMeets IEC 61162-2
Weight100g
Guarantee3 Years
UL CertificationCable E137250
RoHS Compliant
  • One RS422 OPTO-isolated input to protect your PC from ground loop damage
  • One RS422 (NMEA 0183) output
  • Up to 115200 baud
  • Powered via PC serial port for simple installation
  • Shielded cable and case make it suitable for electrically noisy environments

 

NETWORK DIAGRAM

Here are some Frequently Asked Questions about the OPTO-4.

Need more help? Visit our Support Centre.

Actisense is dedicated to providing up-to-date software and resources for our products. Here are some useful tools and documentation to help you make the most of your product:

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

Ordering Information

(Part number/s)

  • OPTO-4

When isolation is required in both directions and/or the PC doesn’t have an RS232 port, the Actisense USG-2 offers bi-directional isolation in a USB to RS422 (NMEA 0183) form.

FEATURES

  • One RS422 OPTO-isolated input
  • One RS422 (NMEA 0183) output
  • Up to 115200 baud
  • Port powered
  • Shielded cable and case

BENEFITS

  • Protects PC input/receiver from damage
  • Water resistant cable.
  • Ruggedized over-moulded case suitable for harsh environment
  • Quick and easy to install
Electrical
NMEA Listener / Input Isolation2kV 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 ThresholdsLogic ‘0’ +2V to +15V, Logic ‘1’-15V to 0V
NMEA Talker / Output Voltage & CurrentDependant on Host RS232 Interface. Typically +/-5V to +/-15V @ 10mA Max
RS232 Voltage on Host+/-7V to +/-15V
RS232 Port Total Current Consumption2mA to 5mA depending on RS232 Voltage
Speed / Baud Rate

 

4800 to 115200 Baud

 

Mechanical
Housing MaterialPVC Black
Thumb Screw MaterialPVC Orange
ScrewSteel, Nickel Plated, M2.8 Thread
DB9 Connector9 Pin Female
Cable Length1.5m
Cable Wire22AWG (17/34AWG) Tinned Stranded Copper
Cable JacketPVC
ShieldInternal Copper Foil Shield
Cable Outer Diameter

 

5.5mm

 

Approvals and Certifications
Operating Temperature-20°C to +70°C
Electrical SpecificationMeets IEC 61162-2
Weight100g
Guarantee3 Years
UL CertificationCable E137250
RoHS Compliant
  • One RS422 OPTO-isolated input to protect your PC from ground loop damage
  • One RS422 (NMEA 0183) output
  • Up to 115200 baud
  • Powered via PC serial port for simple installation
  • Shielded cable and case make it suitable for electrically noisy environments

 

NETWORK DIAGRAM

Here are some Frequently Asked Questions about the OPTO-4.

Need more help? Visit our Support Centre.

Actisense is dedicated to providing up-to-date software and resources for our products. Here are some useful tools and documentation to help you make the most of your product: