Ports = 4 / Serial Ports = 4 / Serial Connection Type = RS232 / Serial Connection Type = RS485 / Connection Type A = DB44 Female / Connection Type B = PCI / Interface Type = RS232 / Baud Rate kbps = 921.6 / Operating Voltage Min. - DC V = 3.3 / Operating Voltage Max. - DC V = 3.3 / Width mm = 87 / Depth mm = 61 / Operating Temperature Min. °C = 0 / Operating Temperature Max. °C = 55