Frequently Asked Questions
28
If there are no loose wires and the volume in the panel speaker is set properly, there may be a
problem with the speaker impedence. To see if this might be the problem, follow the instructions
below:
1. Turn the system power off and disconnect the white and green speaker wires from the main
board.
2. Set your meter to ohms and set the scale to 50 ohms or higher.
3. Place the meter leads on the white and green speaker wires. The meter should read between
40-45 ohms. If your readings are different please contact Mircom’s technical support
department for assistance.
Q. The LCD display has no display or the display has dark blocks on it. Why?
A.
There may be a problem with the contrast level. VR1 (contrast control) is located on the back of
the keypad/display board. Adjust the potentionmeter counter-clockwise for a darker display and
clockwise for a lighter display.
Q. Why is there no dial tone when a visitor calls a tenant?
A.
The NSL system does not utilize an independent phone line, and therefore does not require a
dial tone. The system works with the 2008M Relay Control Panel to ring/call your apartment.
Q. I misplaced the key for the telephone access system. How do I obtain a
replacement?
A.
The Mircom key part number is LK-304.
Contact your local distributor or Mircom Head Office for
a replacement.
Q. What happens when the visitor gets an answering machine when trying to contact a
tenant?
A.
The system will allow the visitor to leave a message on the answering machine.
Q. Is the ring pattern programmable?
The ring pattern selection is a standard NSL system feature.The system provides up to four ring
patterns to choose from for every tenant.
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