JDSU NT850 Betriebsanweisung PDF herunterladen (Seite 31)

Chapter 2 Operation

Powering the Unit On and Off

LanScaperPRO Network Tester User’s Guide 15

Powering the Unit On and Off

Read the section on “Safety Warnings and Cautions” on

page 14 before turning the unit on the first time.

Turning the unit

To turn the unit on, press the power key. (See “Physical

Features of the Test Device” on page 10.) When the unit

powers up, text appears in the LCD and the LCD backlight

lights up. The first time you power the unit on, it will default

to the main menu. On subsequent power ups, the unit will

turn on in the last mode used before turn off.

If the LOW BATT indicator light comes on when you power

up, the batteries should be replaced as soon as is prac-

tical. (See “Installing or Replacing the Batteries” on

page 13.) If the light turns on but the unit does not, the

batteries must be replaced before the unit can be used.

Turning the unit

off

To turn the unit off, press the power key and hold it down

until the LCD goes blank. The unit will turn off automati-

cally after about 15 minutes in all modes except Tone

Generator (60 minutes) and Hub Flash (30 minutes).

Turning the Backlight On and Off

The backlight comes on when the unit is started and turns

off automatically about five minutes after the last press of

any key. You can turn the backlight on or off at any time

while the unit is on by pressing the backlight key. Using

the backlight increases power consumption by 20-50%,

depending on the operation mode of the tester.

LanScaperPRO_User_Guide.book Page 15 Friday, January 25, 2008 1:14 PM

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JDSU NT850 Betriebsanweisung Seite 31