NCR RealPOS, User Manual

Page: 35 / 187

Chapter 3: Installation 3-7
Modifying the Scanner Program
The 7893 comes from the factory with all programming parameters set to default values. For
changes on any values that do not match the system requirements, refer to Chapter 5,
Programming .
Communications Protocol
The Communications Protocol programming mode selects the protocol that the 7893 uses to
communicate with the host terminal.
Note:
The factory sets the Communications Protocol according to the specifications on your
order. Since there is no default Communications Protocol; the Default tag does not change this
parameter.
IBM RS-485
The 7893 supports the IBM 468x/9x format and use the same protocol found on IBM host
terminals.
RS-232
RS-232 is used to connect the 7893 to almost any RS-232 type of communications device. This
protocol uses 7-bit ASCII to send tag to the device.
IBM USB
The 7893 can communicate to the host terminal through a USB cable. This parameter enables
the IBM-USB format.
NCR (RS-232) USB
The 7893 can communicate with the host terminal through a USB cable. This parameter
enables the NCR (RS-232) format.
Note:
Two programming tags must be scanned to enable this parameter: Hex E followed by
Hex 0 .
Wedge
The 7893 can communicate to the host terminal through a Wedge cable.