Converter Dimensions W x H x D: 42 x 22 x 80 mm Operating temperature: 0...+60 °C Power supply: RS232, USB cable or power supply unit Surge protection: 15 KV ESD Appliance type: Serial converter Connection A: DB9 Female Connection B: DB9 Male Galvanic isolation: No Interface A: RS232 Interface B: RS422 / RS485 Operating voltage: 5...12 VDC