{"product_id":"opto-4","title":"Actisense NMEA 0183 PC Opto-isolator cable, RS232 DB9 female, shielded (isolated to PC)","description":"\u003cp\u003eThe Actisense OPTO-4 is a serial opto-isolator cable that provides a safe, low-cost way to connect an NMEA 0183 system to a PC. From version 2.0 onwards the NMEA 0183 specification requires isolated, differential listener inputs, but a standard PC RS232 port is neither isolated nor differential. The OPTO-4 bridges that gap, allowing an RS422 or standard RS232 connection to meet the NMEA 0183 listener requirement and protecting equipment from the ground loops common in a marine environment.\u003c\/p\u003e\u003cp\u003eThe RS232 end is a female 9-pin D-Sub (DB9) connector following the standard RS232 pin-out, and the cable powers itself from the RS232 port's TX and handshaking lines, so in most installations no external supply is needed. An over-moulded case gives excellent water resistance and a small footprint for tight installations.\u003c\/p\u003e","brand":"Actisense","offers":[{"title":"Default Title","offer_id":55951137276244,"sku":"OPTO-4","price":82.24,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/legacy-dcc3dde9.png?v=1781903805","url":"https:\/\/hudsonmarine.co.uk\/products\/opto-4","provider":"Hudson Marine Electronics","version":"1.0","type":"link"}