Mainframe Removal and Installation Procedures
TLA721 Benchtop & TLA7XM Expansion Mainframe Service Manual
6- 23
Special Configuration Options
This section contains information for configuring the mainframe for specific
situations not documented earlier in this manual. These special configuration
options require you to disassemble parts of the mainframe to access jumpers or
circuit boards.
CAUTION.
To avoid damage from high currents on the backplane, always power
off the mainframe and disconnect the power cord before performing any of the
configuration procedures described in this section.
You can control the power-on function of the benchtop mainframe using the front
panel On/Standby switch and from a remote momentary switch through the
connections of the 25-pin rear panel connector. If you connect a remote switch to
pins 5 and 18 (return side) of the 25-pin connector, the remote switch and the
front-panel On/Standby switch control the power-on functions of the chassis.
You can also disable the front-panel switch and control the power-on functions
from the remote switch only. The backplane has two connectors that control the
power-on functions.
If the front panel switch is connected to the backplane at J22, the switch controls
the power-on functions. If the switch is connected to J23, the front panel switch
is disabled; however, the light still illuminates when the chassis is powered on.
To configure the mainframe to disable the front panel On/Standby switch,
disconnect the power cord from the mainframe.
Refer to Figure 6--14 and remove the cover from the mainframe.
Locate the two connectors at the top of the backplane and disconnect the
On/Standby switch cable at J22 and connect it to J23. Replace the mainframe
cover.
Connect the momentary switch to pins 5 and 18 (return side) of the 25-pin rear
panel connector.
Remote Power Switch
Configuration
Содержание TLA7XM
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Страница 13: ...Table of Contents viii TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 17: ...Service Safety Summary xii TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 21: ...Preface xvi TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 25: ...Introduction xx TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 43: ...Specifications 1 18 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 85: ......
Страница 87: ...Adjustment Procedures 5 2 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 131: ...Benchtop Controller Removal and Installation Procedures 6 44 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 137: ...Expansion Module Removal and Installation Procedures 6 50 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 161: ...Repackaging Instructions 6 74 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 165: ...Electrical Parts List 8 2 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 169: ...Diagrams 9 4 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 189: ...Mechanical Parts List 10 20 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...