UTEK UT-2112 External-powered RS-232 Repeater Mini-size PhotoElectric Isolator Full-line Standards: EIA RS-232, CCITT V.24 asynchronous protocol  Interface: two DB9 on both sides Transmission mode: Asynchronous, full-duplex, full transparent  Isolated voltage: 2,500Vrms impulse or 500VDC Baudrate: 300BPS-11,5200BPS  Voltage: DC9V-48V input Dimension: 113mmX55mmX25mm  Weight: 150g  Operating temperature: -40 to 85 Relative humidity: 5% to 95%