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Can I use the NMEA Opto-isolator for other non-NMEA uses?

April 26, 2017NMEA opto-isolator uses

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Can I use the NMEA Opto-isolator for other non-NMEA uses?

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Yes. The NMEA Opto-isolator adapter has been specifically designed to work as an isolator for the NMEA system. However, it can also be used in most systems that use the RS422 or RS485 (4-wire) connection protocols. The Opto-isolated adapter cable utilises a full Galvanic Opto-isolated input circuit to protect the RS232 / PC’s receiver and a TransZorb diode to protect the RS232 / PC’s transmitter. This adapter cable also converts the RS422 / RS485 (NMEA) voltage levels to RS232 (PC) voltage levels, and vice-versa. As an example of alternative uses, by using two adapters at each end of a cable (back-to-back), the normal maximum RS232 cable length of 20 metres can be extended up to and beyond 100 metres. The longest ‘cable extender’ length currently acheived by a customer is 200 metres.