User's Manual

ACR310/312 Operation Manual
Version 1.00 Feb 7, 2011
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ACR310/312
3.8. RS485
A general purpose RS485 interface is provided via a RJ11 connector. It can be accessed by
opening COM0 in the application software. The pin assignment is indicated as below:
Pin Functions
1 Reserved (Don’t connect)
2 Reserved (Don’t connect)
3 Reserved (Don’t connect)
4 RS485 D+
5 RS485 D-
6 GND
3.9. GPS
The mobile validator has a build-in GPS receiver with integrated antenna. The GPS is
enabled when the COM5 is opened by an application. In the MicroSD card, the tools “GPSInfo” and
“putty” can be used to open the COM5 and hence enabling the GPS.
3.10. Audio
The mobile validator has a speaker to generate music/sound/tone.
3.11. SAM card slots
The mobile validator has 4 SAM slots under the rechargeable battery. The card should be
inserted before powering up the device.
3.12. MicroSD card slots
The mobile validator has 1 MicroSD card slot under rechargeable battery. The card should be
inserted before powering up the device. With the MicroSD card inserted, the card content will be
mapped to the path “Storage Card”.
If there is an executable file “autorun.exe” exists in the MicroSD card, the mobile validator will
automatically launch it after power up.
3.13. Rechargeable Battery
A rechargeable battery is provided. It acts as a power backup when the external power is
accidentally removed. So, the application can still keep running if the external power is removed for a
short period of time.
RJ11 Connector at Mobile Validator
6 5 4 3 2 1
USB Client Port