Cash drawers
The SurePOS 720 are preconfigured from the factory to work correctly with all IBM
cash drawers. In this automatic mode, the system can correctly detect the
difference between IBM 24-V and IBM 38-V cash drawers. Cash drawer port 3A
provides auto-sensing function for an IBM cash drawer.
Note: Automatic mode sets the cash drawer operating voltage for both cash drawer
ports. If you connect a 24-V cash drawer to port 3A and connect a second
drawer, it must also be a 24-V drawer.
If you are using a non-IBM drawer, the automatic mode will not work correctly, and
damage to either the cash drawer, system unit, or both is possible. If a customer
has two connected cash drawers, both drawers must be the same voltage.
You can configure the cash drawer voltage (24 V or 38 V) by using the
configuration options on the POS configuration setup program or with the jumper
override. Figure 11 shows the location of the cash drawer voltage jumper on the
riser card and a diagram with the position of the jumpers.
Table 5 provides the correct jumper settings for the 24 V and 38 V cash drawers:
Table 5. Cash drawer jumper settings
Voltage Jumper JP2 Jumper JP3
Automatic setup (default) Not used 2-3
Manual 24 V 2-3 1-2
Manual 38 V 1-2 1-2
JP2 JP3
3
2
1
Figure 11. Setting the cash drawer using the jumper override. Tip: Using Adobe Acrobat, you
can magnify the digital picture to see a close-up view of the card
Updated July 14, 2008
18 SurePOS 700 Series: SurePOS 700-721/741/781, 722/742/782 Hardware Service Guide
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