2.1.2 Bottom Cover
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Figure 2-1-3 Bottom Cover
1.Five-pin socket & Protective plug
2.Host label
3.Connection screw
4.Speaker
5. Battery compartment and cover
6. USB socket and protective plug
7. Network/radio antenna interface and
protective plug
◇ Connection screw: For fixing the instrument to the base or a pole
◇ Protective plug: Used for dustproof and waterproof sockets.
◇ Five-pin socket: For external data linking and external power supply.
◇ Network/Radio antenna interface: Network antenna when using the network, radio
antenna when using the radio.
◇ USB socket: Connect the host with external devices, to upgrade firmware and download
static data. It can also be used as the USB to serial port, in special working modes (you
need to install the driver).
◇ Speaker: Timely operate the instrument and broadcast the status with voice
◇ Battery compartment: Used to place the battery.
◇ Battery cover: Cover the battery cover to protect it from dust and water. It protects the
battery and the components of the main unit.
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