Doc. CEI12166 Rev. 1 Pag. 9 Of 47
2.2
P
USHBUTTONS
,
DISPLAY
,
KEYPAD
,
CONTROL KNOB
The test set is controlled by two push-buttons: SELECT (25), with its LED’s (26) showing the current
selection , and START (27) with the light (28)
, that starts the test.
Test selections are performed by the keypad (7), control knob (5) and display (6).
As With portable phones, pressing a button you access, in sequence, the letters, then the digit. Above
the zero is the space.
2.3
T
HE CONTROL WINDOW
After power-on, the following window is displayed: it informs about firmware revision.
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