MMF Cash Drawer on Serial Port Will not Open
Question:
An MMF cash drawer will not open when it is connected
directly to the serial port.
Answer:
To open most of these drawers, ANY two characters passed into the
serial port will work. Some MMF units have a switch-selectable
character to open the drawer. If the DIP switches on this type of
drawer have not been adjusted, the default open character is a
capital A. Cash drawers of the switch-able type from MMF have "ND"
at the end of the model number.
To open 75% of all directly connected MMF cash drawers (especially
the ECD232 series), try these codes in the devise cash drawer code:
1. Use a code of "1 65"
2. Use a code of "2 65 65"
This should open all MMF drawers requiring any one or two
characters, and also any switch-able drawers that have not been
modified.
More Information
MMF Cash Drawers, Inc. produces several different types of cash drawer
interfaces for their products.
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