As an option and a further security measure, the GS8920 Ticket Printer may be fitted with a serial
output board, which, when connected to the user’s printer, will produce a copy of every printout as the
GS8920 prints them.
A .1 .2 Physical Description.
The standard GS8920 Ticket Printer, shown in the figures below, provides in its basic form an
extensive array of features to enable its economical use in conjunction with a digital weight indicator in
a very wide range of applications. The basic GS8920 Ticket Printer comprises a serial input port, a
wire sealable interlock input, an interlock input for use with remote key switches, CPU watchdog
circuit, battery backed memory, a high quality ticket printer mechanism and a front panel
keyboard/display all under control of the microprocessor CPU.
An options expansion socket is provided which will accept a field fitted Option P1 Serial Output. The
serial output may be connected
to a remote security printer
upon which is produced a copy
of every GS8920 printed
transaction.
An additional expansion socket
is provided which will accept
the factory fitted Option
BR2
Calendar/Clock and Expanded
RAM for time and date printout
as well as item entry and piece
counting.
GS8920 Intelligent Ticket Printer.
A-2
Fig.A-2 GS8920 Inputs and
Outputs.
EIA
RS-232C or
20mA CL
Serial
Weight Data
from GS
and popular
Optional EIA RS-232C
and EIA RS-422A
Serial Outputs for
remote copy of ALL
1 - Standard Optically Isolated Interlock Input.
Fig.A-3 GS8920 Printer Block Diagram.
FRONT PANEL KEYBOARD AND DISPLAY.
SERIAL INPUT
CPU
WATCHDOG
CIRCUIT
BATTERY
BACKED
MEMORY
SERIAL WEIGHT DATA
FROM THE DIGITAL
WEIGHT INDICATOR.
SLOT FOR P1
SERIAL OPTION.
PRINTER
MECHANISM
1 - INPUT
INTERLOCK INPUT for
USERS KEYSWITCH.
OPTION BR2
CALENDAR/CLOCK
and RAM
1 - SEALABLE
INPUT
JUMPER SEAL