User's Manual
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Chengdu Vantron Technology Manuals
Electronics
VT-M2M-BTA-DE
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V
T
-
M2M-BT
A-
DE
3.5.3
D Sub-9
RS2
32 Conn
ecto
r
Standard vert
ical DB-9
male conn
ector
Pin
Description
Remarks
1
DCD1/422
TX+/485_A
BIOS set
2
RXD1/422T
X-/485_B
B
IOS set
3
TXD1/42
2RX+
BIOS set
4
DTR1/422
RX-
BIOS set
5
DGND (gro
und pin)
6
DSR1
7
RTS1
8
CTS
1
9
RI1
1
...
...
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25
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