OPTO-1 NMEA TO RS232 OPTO-ISOLATOR

The OPTO-1 is no longer in production. Please see the current OPTO-4 for the most advanced serial adaptor cable.

Opto-isolation provides 2000 volts of protection to the vital NMEA devices onboard, and more…

The Actisense OPTO-1 cable is an easy, safe and low-cost method of connecting an NMEA system to a laptop PC (and any other device with a standard RS232 9-pin port).

Actisense retired product 750x750 1 1

Whilst protecting the most vital and expensive devices in the NMEA system, it also converts from the PC standard RS232 9-pin serial communications port to an NMEA 0183 (RS422) marine bus link.

The OPTO-1 cable is a bi-directional NMEA 0183 (RS422) to RS232 interface cable, that utilises full galvanic opto-isolation to protect the PC input, and “Tranzorb” protection for the PC output. This provides comprehensive isolation of expensive PC hardware when connecting to an NMEA 0183 bus that may have picked up potentially hazardous voltages around the electrically noisy environment of a vessel.

Opto-isolation provides 2000 volts of protection to the vital NMEA devices onboard, and more…

The Actisense OPTO-1 cable is an easy, safe and low-cost method of connecting an NMEA system to a laptop PC (and any other device with a standard RS232 9-pin port). Whilst protecting the most vital and expensive devices in the NMEA system, it also converts from the PC standard RS232 9-pin serial communications port to an NMEA 0183 (RS422) marine bus link.

The OPTO-1 cable is a bi-directional NMEA 0183 (RS422) to RS232 interface cable, that utilises full galvanic opto-isolation to protect the PC input, and “Tranzorb” protection for the PC output. This provides comprehensive isolation of expensive PC hardware when connecting to an NMEA 0183 bus that may have picked up potentially hazardous voltages around the electrically noisy environment of a vessel.

No external power supply is required as the cable takes all necessary power from the RS232/PC port. Simple installation requires wiring the open end to the NMEA bus, and plugging the D-type connector into the PC, to start receiving the NMEA data – true plug’n’play functionality.

Supply voltageDerived from computer serial port715V
Supply current

 

Derived from computer serial port

 

2

 

5

 

mA

 

NMEA in/out
Input voltage toleranceContinuous operation

Short term operation (<1 sec)

-15

-35

+15

+35

V

V

Differential input voltageRequired level for data to be detected1.8V
Output voltageDependant on computer serial port+/-5+/-15V
Output currentDependant on computer serial port10mA
Input to output protection

 

Full Galvanic Opto-isolation protection

 

 

2000

 

V

 

RS232 in/out
Input voltage tolerance-15+15V
Input voltage thresholdLogical LOW

Logical HIGH

0.8

1.7

1.2

2.8

V

V

Output voltage range3K ohm load, “V”=RS232 port voltage-V+VV
Output resistance

 

Output voltage swing +/-2V

 

200

 

 

ohms

 

General
Baud rate240057600bps
Ambient temperature-20+70°C

Whilst protecting the most vital and expensive devices in the NMEA system, it also converts from the PC standard RS232 9-pin serial communications port to an NMEA 0183 (RS422) marine bus link.

The OPTO-1 cable is a bi-directional NMEA 0183 (RS422) to RS232 interface cable, that utilises full galvanic opto-isolation to protect the PC input, and “Tranzorb” protection for the PC output. This provides comprehensive isolation of expensive PC hardware when connecting to an NMEA 0183 bus that may have picked up potentially hazardous voltages around the electrically noisy environment of a vessel.

Opto-isolation provides 2000 volts of protection to the vital NMEA devices onboard, and more…

The Actisense OPTO-1 cable is an easy, safe and low-cost method of connecting an NMEA system to a laptop PC (and any other device with a standard RS232 9-pin port). Whilst protecting the most vital and expensive devices in the NMEA system, it also converts from the PC standard RS232 9-pin serial communications port to an NMEA 0183 (RS422) marine bus link.

The OPTO-1 cable is a bi-directional NMEA 0183 (RS422) to RS232 interface cable, that utilises full galvanic opto-isolation to protect the PC input, and “Tranzorb” protection for the PC output. This provides comprehensive isolation of expensive PC hardware when connecting to an NMEA 0183 bus that may have picked up potentially hazardous voltages around the electrically noisy environment of a vessel.

No external power supply is required as the cable takes all necessary power from the RS232/PC port. Simple installation requires wiring the open end to the NMEA bus, and plugging the D-type connector into the PC, to start receiving the NMEA data – true plug’n’play functionality.

Supply voltageDerived from computer serial port715V
Supply current

 

Derived from computer serial port

 

2

 

5

 

mA

 

NMEA in/out
Input voltage toleranceContinuous operation

Short term operation (<1 sec)

-15

-35

+15

+35

V

V

Differential input voltageRequired level for data to be detected1.8V
Output voltageDependant on computer serial port+/-5+/-15V
Output currentDependant on computer serial port10mA
Input to output protection

 

Full Galvanic Opto-isolation protection

 

 

2000

 

V

 

RS232 in/out
Input voltage tolerance-15+15V
Input voltage thresholdLogical LOW

Logical HIGH

0.8

1.7

1.2

2.8

V

V

Output voltage range3K ohm load, “V”=RS232 port voltage-V+VV
Output resistance

 

Output voltage swing +/-2V

 

200

 

 

ohms

 

General
Baud rate240057600bps
Ambient temperature-20+70°C