LVCMOS (3.3V) to RS485/422 Converter module

Hey,

I'm looking for a reliable converter module (I mean - complete product with a standard connectors) converting from RS422 to single ended LVTTL / LVCMOS.

The only product I found is RS422 - TTL (5V) such: TTL-485_422-2 + PWR-5-US-2.

Note that the maximum data-rate must be 921.6Kbps or above.

Thanks for your help