User Manual
GPRS Solutions for Serial Connections
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2013 SHENZHEN ATC TECHNOLOGY CO., LTD.
4
of SIM card outlet. Then the SIM card sheath will flick out at once. And then put the SIM card into the card
sheath, and insert card sheath back to the SIM card outlet.
Warning:
Forbid to install SIM card when powered!
Installation of antenna:
Screw the SMA male pin of the antenna to the female SMA outlet of the DTU tightly.
Warning:
The antenna should be screwed tightly, or the signal quality of antenna will be influenced!
Installation of cable:
Uses a RS232/485 data cable connect the DTU with user
’
s device.
2.3
Power
The power range of the DTU is DC 9~24V.We recommend use to use the standard DC 9V/1A power
adaptor.