Log button, Scroll button, Rear view – Spectra Precision ProFlex 800 Backpack User Manual
Page 13: Dc power input

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• It is blinking red when the sleep mode has been enabled
and the receiver is currently running a session. With the 
sleep mode enabled, the receiver is idle between any two 
sessions, as if it were virtually turned off, and the power 
LED is also turned off during this time.
Log Button
Press this button briefly to start recording raw data on the 
selected storage medium.
Another short press on this button will immediately stop raw 
data recording.
Scroll button
Press this button briefly to scroll through the different pages 
of information viewed on the screen.
If an alarm is reported on the display screen, a short press on 
the Scroll button will acknowledge the alarm. The Scroll 
button will recover its display scrolling function only after all 
the alarms have been acknowledged this way.
Another function of the Scroll button is to re-activate the 
screen backlight after the latter has automatically been 
turned off. The Scroll button is also used in the firmware 
update procedure.
Rear View
DC Power Input
A Fischer, three-contact, female connector [1] allowing the 
ProFlex 800 to be powered from either the provided AC 
adapter (connect the cable extension between ProFlex 800 
and the end of the AC adapter output cable), or an external 
9- to 36-V DC power source through cable P/N 730477 (cf. 
base setup using an external radio transmitter).
[9]
[3]
[4]
[5]
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[1]
[6]
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[2]
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