21
GETTING TO KNOW YOUR VIG-100
Mode
Mode2
Mode1
Mode0
Loop Back
Low
Low
Low
RS-232
Low
Low
High
RS-422 (5-Wire)
Low
High
High
RS-485
Low
High
Low
P3 & P4 Mode Configuration Table:
DB9
Connector
Pin No.
RS-232
RS-422
(5-wire)
RS-485
(3-wire)
P3/P4
1
DCD
TXD-
DATA-
2
RXD
TXD+
DATA+
3
TXD
RXD+
-----------
4
DTR
RXD-
-----------
5
GND
GND
GND
6
-----------
-----------
-----------
7
RTS
-----------
-----------
8
CTS
-----------
-----------
P3 & P4 RS-232/RS-422/RS-485 Pin Out:
2.4.3 GPIO
SIM
MicroSD
GPIO
10
1
P4
P3
RS-232/422/485
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
CH2.7
for detailed information.)
Pin No.
Description
Pin No.
Description
1
+V3.3
6
GPIO5
2
GPIO1
7
GPIO6
3
GPIO2
8
GPIO7
4
GPIO3
9
GPIO8
5
GPIO4
10
GND
