Unitech MS842 User manual

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MS842
User’s Manual

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Overview
First of all, thank you for choosing Unitech’s products. This decoder build-in scanner comes in one
model and supports interfaces such as RS232 serial wedge and USB interface.
The scanner supports the following bar code symbologies:
* All 1D barcode
* All 2D barcode

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Installed as an USB Interface
Installation procedures:
You can install the scanner with the USB interface cable to work with either PC or iMac USB port.
RS232 Serial Interface
To use the scanner as a RS232 serial interface, a RS232 interface cable and a power adapter are
required.
Installation procedures:
1. Make sure the scanner’s cable has the right connector and pinout for the RS232 port of the host
device. If the pinout is different from device, swapping pins is necessary to achieve proper
communication.

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2. If the host device has power output at RS232 interface port, the scanner can be powered by
connecting that power line to pin 9 of the scanner connector. If there is no power at RS232 port,
An AC adapter is needed. Plug the adapter into the DB type connector at the end of the interface
cable.
3. Plug the DB type connector of the interface cable into host’s RS232 port and power up the
device.
4. When the scanner is powered, a long beep sound indicates the scanner is ready to use.

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Quick Setup Sheet
Interface setting

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Scan Mode
FW Version

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Testing Barcode