Port powered RS-232 to RS-485/422 converter (mini size), photoelectric isolation.Features:RS-232 side in DB9 femaleRS-485/422 side in terminal blockMax connection: 32 RS485/422 devices; Max distance: 1.2 KMBaud rate: 300BPS-115.2KBPSProtection: +/-15KV ESD protection for RS-232 interfacePhotoelectric isolation voltage: 2.5KVrms /500VDC600W lightning strike and grounding interference protection for RS-485Size: 61mm×41mm×21mmEnvironment: -40-8..