Where the interconnecting cable is to be extended, only high quality, braided shield, twisted conductor
cable must be used to minimize interference. All cable extensions must provide shield continuity. Metal
backshells should be used on all connectors.
Note :-
The cable shown operates satisfactorily between some A&D Indicators and the GS8920 as
A&D generally use pin 3 for serial output data. Most Toledo indicators and serial pods use pin 2
instead of pin 3 of the 25 pin D connector for RS-232C output data, accordingly the conductor on the
above cable will need to be reconnected to pin 2 of the 25 pin connector for connection to Toledo
products. Despite this note, all users should check the serial output pin connections on products they
intend to connect to the GS8920 and verify that the cable they intend to use is properly wired.
2 .5 .2 Sealing the GS8920.
There are no parts within the GS8920 whose manipulation could result in the
GS8920’s fraudulent use. However, access to the interior of the GS8920 Ticket
Printer may be prevented by the use of wire and lead seals on the screws which
hold the covers to the rear panel.
Certain applications require the use of a wire and lead seal to prevent access to
the GS8920’s digital setup parameters. In these applications jumpering pins 8 and
6 of the 9 pin serial input connector shown in Fig.2.1 and wiring/sealing the
connector shells together as well as sealing the connector in place will prevent
access to the GS8920’s setup parameters.
2 .5 .3 Interlock Switch.
Access to the GS8920’s totals and security registers as well as access to the alpha name table, the
accumulator’s material codes and the GS8920’s digital setup may be denied to unauthorized personnel
by the installation of a remotely mounted keyswitch connected to pins 7 and 9 of the GS8920’s 9 pin
input connector. A closed condition is required to lock out access to these functions. An open condition
or removal of the 9 pin connector will allow access to these functions. As additional security, the
GS8920’s 9 pin connector may be sealed in place as described above.
2 .6 GS Dig i tal Weight In di ca tor Setup.
2 .6 .1 General
The GS8920 Ticket Printer may be connected to any of the range of Gedge Systems Digital Weight
Indicators which are fitted with an Option 02 EIA RS - 232C or 20mA Current Loop Serial Output.
Currently the models are :- GS1650, GS1650T/P/S, GS1650A, GS1650B and GS2750.
In their standard form, but fitted with an Option 02 or 05 board, all of these models, when setup as
shown below, will provide the weight and status information required for proper operation with the
GS8920 Ticket Printer. Some of the weight indicators provide, in their standard form, a device number
which can be used on the ticket printout to identify the installation. Time and Date may be supplied on
all printouts by fitment of Option BR2 to the GS8920 Ticket Printer. Alternatively, time and date may
be provided by the digital weight indicators if it is fitted with a time and date option. The GS8920
automatically uses the time and date from the weight indicator if it is available. If it is not available,
then the GS8920 will use its own time and date if option
BR2
is fitted.
If the weight indicator and the GS8920 both include time and date options but the time and date from
the GS8920 is required, then the time and date on the weight indicator must be set to OFF.
GS8920 Intelligent Ticket Printer.
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