38
MB-662 User Manual
COM1 (CN32)
COM1 RS-232 (
CN32
)
Pin
Signal
Pin Signal
1
DCDA
6
DSRA
2
RXDA
7
RTSA
3
TXDA
8
CTSA
4
DTRA
9
DTRA
5
GND
10
GND
COM4 (CN31)
COM4 RS-232/422/485 (
CN31
)
Pin
Signal
Pin
Signal
1
DCDB
2
DSRB
3
RXDB
4
RTSB
5
TXDB
6
CTSB
7
DTRB
8
IRIB
9
GND
10
N/C
11
12
485TXD-
13
422RXD-
14
422RXD-