BRT-320A
3
2.2 Keypad
2.3 Secondary Keypad Functions
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2.4 Connector Panel
Powers unit on or off
Decreases or increases register
number in store and recall mode
Accesses secondary functions
and exits program or selection
mode
Toggles between wavelengths
(dual-wavelength units only)
Cancels extraneous return loss
Stores back-reflection
readings
Decreases or increases back reflection
during user calibration
Recalls back-reflection
readings
Enters or exits user calibration mode
Accesses secondary
function keys
Activates and
deactivates back-light
Supplies DC power to unit
and recharges built-in
NiCd battery pack
Optical port (fitted with
APC connector)
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