TransAct Technologies ITHERM 280 - Manual (Page 35)

iTherm ® 280 Programmer’s Guide Specifications and Requirements
28-07764 Rev C Page 33
Cash Drawer
Interface Description
The iTherm ® 280 Printer supports a single cash drawer with status. The driver in the
printer is capable of supplying 24 V DC at up to 1.5 amps for up to 250 milliseconds. The
iTherm
® 280 Printer defines cash drawer closed as switch open. If the drawer is
disconnected, it will be viewed by the printer as closed. Since the printer does not act on
the cash drawer status, the application can interpret cash drawer status any way it
wants.
Driver connector type (standard) Single RJ12 connectors with 24V sink drivers
Driver voltage 24 volts (Refer to power supply specification).
Driver current 1 amp maximum with current limit
Pulse duration 250 msec. maximum
Drawer status Open/close drawer status provided to printer
Cash Drawer Pin Assignments
Figure 2 Cash Drawer Pin Definitions
The cash drawer can be configured for one of three configurations; Ithaca, Epson, or
Star. The Main Controller PCB has three (3) six-pin headers, one each configuration.
The cash drawer harness is identical, and is plugged into the appropriate header at time
of factory build. The header position defines the configuration of the cash drawer. This
design allows for changing the cash drawer in the field by a trained technician. Refer to
the markups on the board when determining where the harness should be installed to
work in the three different configurations.
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6
pin 1 CD2-
pin 2 CD1 Sense
pin 3 Ground
pin 4 CD Drive + (+24V)
pin 5 CD1-
pin 6 Not Connected pin 1 Not Connected
pin 2 CD1-
pin 3 CD1 Sense
pin 4 CD Drive + (+24V)
pin 5 CD2-
pin 6 Ground pin 1 Not Connected
pin 2 CD1-
pin 3 CD Drive + (+24V)
pin 4 CD Drive + (+24V)
pin 5 CD2-
pin 6 CD1 Sense
Ithaca Epson Star