Meridian 1 Options 201, 211 Meridian SL-100 M3000 Touchphone Reference Manual MSL03
8-1
Testing and maintenance
M3000 Digital Telephone testing consists basically of acceptance test
procedures. Impulse noise, background noise, and crosstalk compatibility
problems are unlikely. Examine the loop length, connect the telephone, and
check the performance by establishing a communication path to another
telephone (or data terminal) and going through the different call routines
(enabled features) while observing and verifying the responses at the
telephone and data terminal.
Check the polarity of tip and ring leads for reversals before going into more
detailed follow-up tests. The M2000 Digital Telephones are polarity
sensitive, and a dead loop or absence of dial tone may indicate reversed tip
and ring polarities.
Use Procedure 8-1 to verify call processing on the M3000 Touchphone.
Procedure 8-1
Verifying a call on the M3000 touchphone
Note: Call process verification should be performed when there are no
incoming calls and the M3000 Touchphone is in idle state.
Select a DN by touching the associated icon position. Handsfree is activated
automatically.
Response: Handsfree icon shows speaker and microphone symbols. IDLE
screen changes to DIAL TONE screen. Dial tone occurs.
Enter the DN by touching the numbers on the touch-sensitive key pad.
Response: Notify line displays digits dialed. Ringback occurs.
Answer the ringing DN to establish voice continuity.
Touch RELEASE position.
Response: ACTIVE screen changes to IDLE screen.
Use Procedure 8-2 to verify data calls.
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