MMF POS USB with Serial Emulation Interface Kit User Manual
Usb interface with serial emulation

USB Interface with Serial Emulation Interface Instruction manual / User Guide
MMF POS Date of Revision 7-1-2010 Doc. Serial Emulation Instruction Manual
P/N:
531-9209-00
USB Interface with Serial Emulation
GETTING STARTED:
Load the MMF USB Serial Emulation Driver into the host computer unit.
Download the MMF USB Serial Emulation Driver file from our website by opening the zipped file
Website address:
http://www.mmfpos.com/drivers
» Open folder named “MMF USB Serial Emulation Driver”
» Select the filed named “mchpcdc.inf”
» Save in „C:\Program Files‟ or „Desktop‟
Connect the Power Supply (12VDC / .8 Amp)
Plug the small plug tip to the interface power port in the back of the cash drawer interface as illustrated in
Figure 1. Plug the power adapter end into a 120 Volt AC Recepticle.
Always connect the power supply before the USB Cable.
Connect USB Cable
Plug the Type B connector end to the USB Port of the interface as illustrated in Figure 1 and the Type A
Connector to the USB port of the Host Computer.
Check which COM Port the Host computer has assigned as the Virtual COM Port
»Go to START Menu
»Select Control Panel
»Click on the System Icon
»Select the Hardware Tab
»Click on Device Manager to view COM Port assigned.
NOTE: On this particular computer COM4 has been
automatically assigned as the virtual com port.
This is the com port designation you will use to
test the interface functionality (STEP 5) and
for your POS software setup.
Test Functionality of Interface
Follow the steps detailed below for „Serial Emulation Test Procedure‟.
Install OPOS Drivers
Follow the steps detailed below for „MMF OPOS Drivers Installation‟.
USB Interface
P/N#2261998USBA
2
-XX: USB with Serial Emulation Interface KIT (Includes Power
Supplies & USB Host Cables)
P/N# 641-2575-00: Cash Drawer Power Supply (12V dc)
P/N# 641-25BX-00: USB Host Cable