NCR RealScan 7802, User Manual

Page: 58 / 94

NCR RealScan 7802 Price Verifier User Guide
06/03 497-0425530 Release E 58 of 94
1
IP
addresses (‘XXXXXXXX’) are in hexadecimal notation. Each of the quads in the address becomes a pair of hex
digits (e.g., 10.0.0.10 is encoded as 0A00000A).
2
String values start with the count of characters (‘L’) followed by the characters of the string (‘SSSSSSS’). T
he
RealScan 7802
preserves the case of characters in strings even if it is not meaningful to the network or host. If the string
starts with a digit, the length field must be 2 digits, such as 01. If the string starts with a non-digit the length field can be 1
or 2 digits.
3
Numerical values (‘L’ and ‘NNNQ’) are decimal. A non-digit character must follow numerical values. Purely numerical
parameters (such as Product Info Port) should be followed by an upper-case alpha character to prevent confusion
caused by check-characters and stop codes.
4
If shipped as a hardwired unit it has the default IP address shown. If shipped as an RF wireless unit the default is
DHCP.
5
There are 2 different screens depending on the type of RF radio card installed.
6
Setting the Host name also sets SMB file-access mode. Setting the File Server IP also sets FTP file-access
modes.
Barcoded commands must be at least six characters long, including the 2-character prefix, but excluding the
check character and the start and stop characters. Extra characters may be added to guarantee this. Such
padding characters should be upper case alpha characters and are ignored. Numerical values may be zero
padded (such as ‘0001’ instead of ‘1’) and should be terminated by a non-numeric character (which is other
wise ignored) to prevent ambiguity should the check character also be numeric.