1.Modbus to FF, PA 2.TTL,RS232,RS485 3.round 66mm / square 80mm, may be customized 4. ... certification Modbus to FF, PA, HART Converter,apply to TTL, RS232,RS485 transmitter NCS-MF105, MODBUS-FF Converter NCS-MF105 is ... sizeDia 66 mm for TTL level80*80mm for RS485 and RS232(can be customized) NCS-MP105, MODBUS-PA Converter NCS-MP105 ... NCS-MF105 Modbus to FF/PA Converter,support TTL Level, RS232,RS485