IBM 4800-741 Hardware Service Guide - Page 36
drawers - 742 service manual
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Updated July 14, 2008 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. 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 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 Automatic setup (default) Not used Manual 24 V 2-3 Manual 38 V 1-2 Jumper JP3 2-3 1-2 1-2 18 SurePOS 700 Series: SurePOS 700-721/741/781, 722/742/782 Hardware Service Guide