Operating Basics
Using the Mainframe General Purpose Interface (GPI)
You can use the 10 BASE-T port of the TG700 mainframe as a General Purpose
Interface (GPI) by changing internal jumper settings. When you enable the
mainframe GPI, you can recall one of the seven available presets, output an alarm
signal, and display an alarm status on the LCD.
This section describes how to set the mainframe GPI and its available features.
WARNING.
Electrical shock can cause injury or death. Reduce the risk of shock
by referring to the General Safety Summary and the Service Safety Summary
before performing any service level adjustments. Only trained personnel should
perform service procedures.
CAUTION.
When you enable the mainframe GPI, do not connect the TG700 to a
network. The network might be damaged.
NOTE.
When you enable the mainframe GPI, you cannot perform network
operations such as sending and receiving remote commands or downloading
signals.
After you enable the mainframe GPI, be sure to apply the GPI label (provided
with the instrument) to the rear panel to show that the instrument cannot connect
to a network.
Enabling the
Mainframe GPI
The mainframe GPI is enabled by changing the jumper settings of the connectors
J000, J002, J004, J006, and J008 on the A10 MAIN board. Since the A10 MAIN
board is located inside the chassis, you must remove the top cover to change
the jumper settings.
Perform the following procedure to enable the mainframe GPI. You need a
screwdriver with a # 2 Phillips tip to remove the top cover.
WARNING.
To avoid electrical shock, remove the power cord before removing the
top cover. Failure to remove the power cord can result in serious injury or death.
1.
Disconnect the power cord from the TG700.
2.
Remove the screws securing the top cover to the instrument.
3.
Lift the top cover off the instrument. Depending on the version of your
instrument, you might need to slide the top cover toward the rear before lifting
it off the instrument. (See Figure 2-28.)
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TG700 TV Signal Generator Platform User Manual
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