IBM 4800-741 Operation Guide - Page 39
Voltage, setting, SurePOS, Receipt, Journal, printer
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Updated October 31, 2007 Voltage setting for the 4689 DBCS SurePOS Receipt Journal printer To operate correctly with the SurePOS Models 721, 741, and 781, customers with the 4689 DBCS SurePOS Receipt Journal printer must set the printer voltage to 24 V. All other RS-485 printers will work correctly with the SurePOS 700 at the default setting of 38 V. To configure the printer voltage to 24 V, you set the jumpers JP1 and JP2. Both jumpers must have the same setting. Select pins 1-2 for 38 V (default) or pins 2-3 for 24 V. Figure 12 shows the location of the printer jumper. 38 24 JP1 JP2 Figure 12. Location of printer jumper on the I/O card. Tip: Using Adobe Acrobat, you can magnify the digital picture to see a close-up view of the card. Chapter 1. Introducing the SurePOS 700 Models 19