![Actisense NMEA 0183 PC OPTO-Isolator Cable, RS232 DB9 Female, Shielded (Isolated to PC) [OPTO-4] Brand_GROCO 4D comes with a variable](https://cdn.shopify.com/s/files/1/0405/8454/4408/files/51801XL.jpg?v=1764117528)
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4D comes with a variable full crossover filter for crystal-clear audio whenever you want it
(2) 8034 LED - 120v AC Green
minimising surface abrasion
Weight: 11 LBS
1100 GPH Livewell Pump Straight Thru-Hull Inlet
Actisense NMEA 0183 PC OPTO-Isolator Cable, RS232 DB9 Female, Shielded (Isolated to PC) [OPTO-4] Brand_GROCO 4D comes with a variableNMEA 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