Microcom 324M Operator's Manual page 188

DTE (Data Terminal Equipment) - The terminal or computer end of an RS-232 serial
communication link. Serial ports on computers are typically configured as DTE.
DTR (Data Terminal Ready) - A status signal used to provide information about the status
of the communication line connected to the DCE end of an RS-232 link. Used in
conjunction with DSR.
DTR comes into the printer on pin #4 of the RS-232 connector.
Ethernet - A fast and capable serial interface used by many networks for connecting host
computers to various peripherals.
Fanfold media - Die-cut or tag media that is folded into stacks.
Flash memory - Memory that is used to store font, graphics and label formats for faster
access. This is a non-volatile type of memory, which means that the information stored in
the memory chip is retained even when the printer power is turned off.
The 324M/424M printers use two FLASH memory chips: a CODE flash (256K x 16), and a
FONT flash (4M x 16)
GND (Signal Ground) - The ground terminal of a power supply's output, and all points that
connect to it. This is an essential signal in an RS-232 communication link that is used to
reduce noise spikes that can cause a receiver to misread logic levels. Also known as SG
and SGND.
GND comes into the printer on pin #5 of the RS-232 connector.
Guillotine Cutter – A cutter that has a blade that cuts perpendicular to the media path.
This type of cutter can be setup to make "partial cuts" which leave a small piece of label
uncut in the center of the label. Not all Guillotine cutters can make partial cuts...a special
blade is required.
2
Cuts paper weights in the range of 60 – 100 gm/m .
LDS (Label Design Software) - This is the resident control software language that is used
to develop label formats and controls the full function of the printer.
LPI (Label Present Indicator) - This sensor, when enabled, detects when media is present.
Also referred to as LTS (Label Taken Sensor). This sensor is a reflective type sensor that is
normally mounted above the paper stock looking down at the paper just past the print head.
Platen - Roller that is located below the print head, which the media rests upon. (See Drive
roller)
RI (Ring Indicator) – An RS-232 handshaking signal that is NOT used on the 324M/424M
printers.
RI would leave the printer on pin #9 of the RS-232 connector if it were used.
324M/424M Operator's Manual - 880026-1001 13-19