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P3 & P4 Mode Configuration Table:
Mode
Loop Back
RS-232
RS-422 (5-Wire)
RS-485
P3 & P4 RS-232/RS-422/RS-485 Pin Out:
DB9
Pin No.
Connector
P3/P4
2.4.3 GPIO
P4
10
In VIG-100 series, it is offered with eight programmable I/O within TTL 3.3V
tolerance. If the GPIO is logic high, it indicates the accurate signal mapping on
SIO GPIO pin and vice versa. (Please refer to
Pin No.
1
2
3
4
5
Mode2
Low
Low
Low
Low
RS-232
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
-----------
7
RTS
8
CTS
RS-232/422/485
P3
1
MicroSD
GPIO
SIM
Description
+V3.3
GPIO1
GPIO2
GPIO3
GPIO4
Mode1
Low
Low
High
High
RS-422
(5-wire)
TXD-
TXD+
RXD+
RXD-
GND
-----------
-----------
-----------
CH2.7
for detailed information.)
Pin No.
Description
6
7
8
9
10
GETTING TO KNOW YOUR VIG-100
Mode0
Low
High
High
Low
RS-485
(3-wire)
DATA-
DATA+
-----------
-----------
GND
-----------
-----------
-----------
GPIO5
GPIO6
GPIO7
GPIO8
GND
21
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