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Front/Rear-Panel Features
Front-Panel Indicators
LINE ON Indicator
A green LINE ON indicator LED, located on the lower left front-panel, is illuminated when
power is applied to the unit.
Fault Indicator LEDs
The following three fault indicators are located on the lower center front-panel.
VOLT/TEMP red fault LED.
CURRENT red fault LED
I/O red fault LED
Some older models may have a fourth fault indicator labeled AIR FLOW. The circuitry for this
indicator has been disabled.
A description of conditions that can cause these fault indicators to turn on is supplied in
Chapter 5, \Troubleshooting."
Module Latch
The module hex-nut latch secures a module in a mainframe. When a module is being installed
into or removed from an HP 70001A Mainframe, an 8 mm hex-ball driver is used to turn the
module latch screw. Refer to Chapter 2, \Module Installation."
1-6 General Information
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