User's Manual

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3.3.3 D Sub-9 RS232 Connector
Standard vertical DB-9 male connector
Pin Description
Remark
s
1 DCD1/422TX+/485_A
BIOS
set
2 RXD1/422TX-/485_B
BIOS
set
3 TXD1/422RX+
BIOS
set
4 DTR1/422RX-
BIOS
set
5 DGND (ground pin)
6 DSR1
7 RTS1
8 CTS1
9 RI1