Spectra Precision ProFlex 800 Backpack - Manual (Page 12)

English
8
USB Host & Device
A nine-contact female connector (Fischer type). Depending
on how it is configured, the USB port can be used in two
different ways:
1. For a USB host, such as a mass storage device using
optional device cable P/N 702104.
2. For a USB device allowing ProFlex 800 to be seen as a
disk from the computer connected to this port. In this
configuration, files can be transferred between the
ProFlex 800’s internal memory and the computer using
the USB cable provided (P/N 702103).
Display Screen
The display consists of a 128 x 64-pixel, 1.5-inch
monochrome yellow screen using organic LED technology
(OLED).
Used in conjunction with the Scroll button, the display screen
allows you to view different pages of information. See Display
Screens on page
16 for a detailed description of the
information available from this screen.
After a few seconds of inactivity (i.e. Scroll button idle),
screen luminosity turns from high to low level.
Power button
To turn on the ProFlex 800, hold the Power button pressed
until the power LED lights up.
To turn off the ProFlex 800, hold the Power button pressed
until the “Ashtech” screen is displayed. Then release the
button and wait until the ProFlex 800 shuts down.
Power LED
• This indicator light is off when the ProFlex 800 is off and
no external power source is connected to the DC power
input.
• It is on and red when an external power source is present
at the DC power input and the ProFlex 800 is off.
• It is on and green when the ProFlex 800 is on, regardless
of whether it is powered from the internal battery or an
external power source.