External Interfaces Description
10
DLR-PR001-XX
GPIO Port
The reader has 13 GPIO bidirectional pins to be used to
control external devices or to send trigger signals to the
reader. All GPIOs are TTL Levels. (See the Product
Reference Guide for more details and instructions on how
to use them). A DB15 external connector is available:
Figure 8. DB15 Socket Connector
Pin #
Signal
Description
1
GPIO0
General Purpose I/O 0
2
GPIO2
General Purpose I/O 2
3
GPIO4
General Purpose I/O 4
4
GPIO6
General Purpose I/O 6
5
GPIO8
General Purpose I/O 8
6
GPIO10
General Purpose I/O 10
7
GPIO12
General Purpose I/O 12
8
GND
Ground
9
GPIO1
General Purpose I/O 1
10
GPIO3
General Purpose I/O 3
11
GPIO5
General Purpose I/O 5
12
GPIO7
General Purpose I/O 7
13
GPIO9
General Purpose I/O 9
14
GPIO11
General Purpose I/O 11
15
DC_BYPASS
Input supply voltage bypass (500mA max)
Shell
External shell
