User's Manual

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2.5. Enter Administrative Mode
1. Turn of the power.
2. Press the “ ” + “ ” + ” ” keys and hold till the
<ENGINEER MENU> is shown on the LCD screen. Then release the keys.
3. In approximately 10 seconds, you will enter the main screen of the administrative
mode.
Figure 2.5-1 Administrative Mode
2.6. Locking & Unlocking the Keypad
Follow these steps to lock & unlock the keypad:
1. In idle state, hold the key over 2 seconds or wait over 1 minute.
The keypad will be locked, as shown in Figure 2.6-1.
Figure 2.6-1 Keypad Locked
2. To release, press and hold the key for approximately 2 seconds and
the message will appear prompting you to confirm, the procedure like Figure
2.6-2.
Figure 2.6-2 Keypad Unlocked
〈 ENGINEER MENU 〉
Enabled Engineer
Mode For MMI/WEB
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Menu Names
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