Thema "Betreff: Converting RS-485 to RS-422 using optical extender with SDI Video transmission" in Plauderecke

Converting RS-485 to RS-422 using optical extender with SDI Video transmission

HagenSam — Mon, 06 Apr 2026 07:03:29 GMT

Hello, I am currently using a Questtel SDI-over-fiber extender with RS-485 data for serial control. I have recently switched to a Canon CR-N300 camera , which provides an RS-422 interface for control. Given the differences between RS-485 (2-wire, half-duplex) and RS-422 (4-wire, full-duplex), I would like to confirm whether it is feasible to implement an RS-485 to RS-422 conversion within the signal path and maintain reliable communication over the existing fiber extender.
Specifically, can a protocol-transparent hardware converter be used in this scenario?
Any recommendations on compatible solutions for integrating RS-422 control over the current infrastructure would be greatly appreciated.

Betreff: Converting RS-485 to RS-422 using optical extender with SDI Video transmission

seelo2010 — Mon, 06 Apr 2026 07:39:09 GMT

Use Ethernet with PoE.

Thats is the furure and Work with different systems.

Betreff: Converting RS-485 to RS-422 using optical extender with SDI Video transmission

HagenSam — Tue, 07 Apr 2026 05:33:14 GMT

Due to application constraints, Gigabit Ethernet Poe is not a feasible option; therefore, a fiber-optic solution will be used.

Betreff: Converting RS-485 to RS-422 using optical extender with SDI Video transmission

seelo2010 — Tue, 07 Apr 2026 06:59:20 GMT

Than use Ethernet via Fiber