Serial Prots (Cn15, Cn12) - Aaeon SBC-557 Manual

Serial ports (CN15, CN12)
The SBC-557 offers two serial ports, one RS-232 (CN15) and one
RS-232/422/485 (CN12). These ports allow you to connect them to
serial devices (mouse, printers, etc.).
COM2 RS-232/422/485 serial ports (CN12)
COM2 RS-232/422/485 serial port (CN12)
PIN
COM2 1
2
3
4
5
SIGNAL
DCDB
(422TXD-/485DATA-)
RXDB
(422TXD+/485DATA+)
TXDB
(422RXD+)
DTRB
(422RXD-)
GND
CN12
(COM2)
10 9
1
2
1
9
6
CN15
(COM1)
PIN SIGNAL
6 DSRB
7 RTSB
8 CTSB
9 RIB
10 N.C.
Chapter 2 Installation 47
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