Nortel M2018, Справочное руководство

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2 Testing and maintenance
555-4001-110 Standard 09.03 July, 2002
the test. If the digits are correct, all the Liquid Crystal Displays (LCDs)
on the telephone illuminate.
The tester has 2 minutes to perform the test. When the test completes
or times-out, the telephone becomes idle with no dial tone.
This test is not valid for the Meridian Asynchronous Data Option
(MADO), and the test cannot initiate from a data loop or the keyboard.
Each time an M2000 Digital Telephone is unplugged and a new one
plugged in (for example, when replacing a defective telephone), a
waiting period of at least 6 seconds is required before the new
telephone can be tested.
Note: When testing the M2009, omit Steps 27-35 and Step 39 in
Procedure 1. When testing the M2018, omit Step 39. When testing
the M2112, omit Steps 29-35
Procedure 1
Key/LCD indicator tests (station ringer test)
1 Dial the access code and the last five digits of the directory
number.
Response: All key/LCD indicators come on.
2 Take the handset off-hook.
Response: All LCDs flash. (See note.)
3 Put handset on-hook.
Response: All LCDs wink. (See note.)
4 Take handset off-hook.
Response: All LCDs come on. (See note.)
5 Put handset on-hook.
Response: All LCDs turn off. (See note.)
6 Press Dial Pad Key 1.
Response: LCD 1 comes on.
7 Press Dial Pad Key 2.
Table 1
If Then
You are installing the M2112 Perform Steps 9-22.