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• No Light：Non service or line fault.
Phone Status Indication Test (only used for the analog phone lines,
cannot be used in the digital telephone):
Please complete the following steps to check the status of a phone
line:
1. Connect the red and black alligator clip of the Transmitter to the
telephone line jack or punch-down block.
2. Press
button to turn on the power, "POWER/ BAT LOW"
indicator will light up. Then press "
phone line status function indicator will light up, phone status
indication test start.
3. In the phone status indication test, the polarities will
synchronism shown. The "CONT" indicator is dual color (Red/
Green). Indicates the status as below:
• Red light：Red alligator clip at positive (+) polarity；Black
• Green light：Red alligator clip at negative (-) polarity；
• No Light：Non service or line fault.
4. "CONT" phone status indicator shows test results, it is a
red/green dual color LED lights:
• Red or green color : Standby status.
• Not bright or dim : Served line status.
• Flashing : Incoming call ringing.
NCV (Non-Contact Voltage) Testing：
Caution
•
The feature can be used before locating, isolating, cable
mapping to identify if the tested cable is with AC voltage. It can
not only help to ensure the safety of user and avoid possible
electric shock or personal injury, but also protect the product
from being damaged by AC power.
1. Turn the switch to "NCV", the function is started when the power
indication is on.
2. When doing the NCV testing, place the probe of MT-7029
receiver to the tested cable, the NCV indicator twinkled fast and
alligator clip at negative (-) polarity.
Black alligator clip at positive (+) polarity.
16
" button twice, the "TEL"
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