Page 14 AXIS M7001 Installation GuideUnit connectorsNetwork and power - RJ-45 Ethernet connector supporting Power over Ethernet (PoE class 2).Using shielded cables is recommended.Video in - For connecting an analog camera:• BNC connector. Use a 75 ohm coaxial video cable; recom-mended maximum cable length is 250 meters (800 feet).Note: If the video source is to be connected in parallel withother equipment using a BNC T adaptor, disable the inputtermination by setting the 75 Ohm termination switch toOFF. Failure to do so may reduce image quality.• 2.5 mm tele plug connector.RS-422/RS-485 connector - Two 2-pin terminal blocks RS-485/422 serial interface forconnecting auxiliary equipment, for example Pan Tilt Zoom devices.The RS-485/422 serial port can be configured in the following port modes:• Bidirectional RS-485 half-duplex port for data transmissionusing two wires, one combined RX/TX pair.• Bidirectional RS-485 full-duplex port for data transmissionusing four wires, one RX pair and one TX pair.• Unidirectional RS-422 port for transmitting or receiving datausing two wires, RX- or TX pair.• Bidirectional RS-422 full-duplex port for data transmission(point-to-point) using four wires, one RX pair and one TX pair.Function Pin NotesRS-485B alt RS-485/422RX(B) 1 RX pair for all modes (combined RX/TX for 2-wire RS-485)RS-485A alt RS-485/422RX(A) 2RS 485/422TX(B) 3 TX pair for RS-422 and 4-wire RS-485RS 485/422TX(A) 4ONOFF75 Ohm terminationswitchBNC connector4 3 2 1TX RX/TX