Intermec Janus 2020 User Manual page 538

JANUS 2020 Hand-Held Computer User's Manual
logical COM4
Logical COM4 is the communications port for RF communications in a JR2020.
This COM port is different from COM4, which is the Type II PC card drive
when it contains a modem card. Accessing an RF network through logical
COM4 does not conflict with accessing a serial communications network
through COM4.
LRC
Longitudinal redundancy check character. This character is an error-checking
character that is optionally appended to transmitted blocks of data and
optionally checked on received blocks of data.
memory cards
See PC cards.
MkImage
One of two programs you can use to change the contents of drive C. MkImage
creates an image file containing the files you want on drive C. You can run
MkImage on a host computer, on the reader's PC card drive, or on the reader's
RAM drive.
Modulus 43 check character
Check character derivation method for Code 39.
modem card
A Type II PC card that converts one form of a signal to another, which is
suitable for transmission over communications circuits, typically from digital to
analog and then from analog to digital.
MS-DOS Programs companion disk
One of the disks that Intermec ships with your JANUS reader. This disk
contains commands and device drivers. Some of these commands and drivers
are already installed on the reader. This disk also contains applications, such as
INTERLNK.EXE, MkImage, and PutImage.
MSI code
Similar to Plessey code. MSI code includes a start pattern, data characters, one
or two check digits, and a stop pattern. It is fixed length, continuous, and non
self-checking. This code is used to mark retail shelves for inventory reordering.
The character set is 0 to 9 plus additional symbols.
G-16