User's Manual

VT-M2M-TC
3.5.3 DSub9RS232Connector
StandardverticalDB9maleconnector
Pin Description
Remarks
1 DCD1/422TX+/485_A
BIOSset
2 RXD1/422TX/485_B
BIOSset
3 TXD1/422RX+
BIOSset
4 DTR1/422RX‐
BIOSset
5 DGND(groundpin)
6 DSR1
7 RTS1
8 CTS1
9 RI1