Schneider Electric TBUM297218 RS232 Cable RJ45 to DE9P

Schneider Electric TBUM297218 RS-232 Cable RJ45 to DE9P is a 1 ft (0.3 m) straight-through RS-232 lead that converts an RJ-45 serial port to a DE-9P DCE connector. Designed for Schneider Electric SCADAPack remote terminal units, it provides a compact, pre-wired path for RS-232 communications between an RJ-45-based port and a computer or modem with a DE-9P interface. The cable length is specified as 1 ft (0.3 m) to help fit inside control cabinets without excess slack, while maintaining a reliable physical and electrical connection. The pinout pairs RJ-45 conductors with the corresponding DE-9P signals: RJ-45 pin 3 maps to DTR on DE-9P pin 4, pin 6 to TxD on pin 3, pin 5 to RxD on pin 2, pin 2 to DCD on pin 1, pin 4 to GND on pin 5, pin 7 to CTS on pin 8, pin 8 to RTS on pin 7, and pin 1 to +5 V on pin 9; the DE-9P shell shield is connected to the RJ-45 cable shield. This arrangement supports standard RS-232 data transfer for point-to-point links and is commonly used to connect SCADAPack serial ports to DCE devices like modems or PLC programming terminals.