2 - 18 MC75A Enterprise Digital Assistant Integrator Guide
Serial Device Connection
The MC75A has a serial port on the bottom. When the MC75A is inserted into the cradle, it connects to the cradle’s
serial port. The MC75A can then use the cradle’s serial port to communicate with an external device.
Figure 2-17
Vehicle Cradle Serial Connection
To provide serial communications between an MC75A and a serial device, connect one end of the 9-pin serial
cable into the serial port on the cradle, and the other end into the serial port on the serial device.
To begin communication:
1. Insert the MC75A into the cradle.
2. To initiate communication, make appropriate selections on the MC75A, as determined by the application you
are using.
Charging the MC75A Battery
Insert the MC75A into the vehicle cradle to begin charging. A click indicates that the MC75A button release locking
mechanism is enabled and the MC75A is locked in place.
To Serial Port of
Serial Device
NOTE Some devices may require a null modem serial cable.
CAUTION Removing the MC75A during data communication disrupts communication between the MC75A and the
attached device.
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