Arista AP-3500-E01 - Pins in the Serial Port (COM1)

11
Pins in the serial port (COM1)
6 7 8 9
1 2 3 4 5
Pin NO. Denition(RS-232 mode) Denition(RS-422/RS-485 mode)
1 DCD, data carrier detect TX-, Transmit data ground (RS-422/RS-485)
2 RXD, Receive data TX+, Transmit data(RS-422/RS-485)
3 TXD, Transmit data RX+, Receive data (RS-422)
4 DTR, Data terminal ready RX-, Receive data ground (RS-422)
5 GND, Signal ground GND, Signal ground
6 DSR, Data set ready N.C.
7 RTS, Request to send N.C
8 CTS, Clear to send N.C
9 Ring-IN, Ring indicator N.C.
Note:
COM1 port is available for RS-232/RS-422/RS-485 Mode.