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100920 AD500 Install instruct
S S y y s s t t e e m m A A d d j j u u s s t t m m e e n n t t s s
The factory setting are sufficient for most installations. The system can
be adjusted to customize the installation.
System Tone Adjustment
The sound level of the tones that the system produces can be adjusted.
1. Locate the TONE VOLUME adjustment on the main circuit board.
2. Press keys on the keypad while adjusting the TONE VOLUME until
the tones are at the desired level. Turn the adjustment clockwise
for more volume, counterclockwise for less volume.
Speaker Volume Adjustment
If the resident's voice from the speaker is too loud or not loud enough, the
speaker's volume can be adjusted.
1. Locate the SPEAKER VOLUME adjustment on the main circuit
board.
2. Make a directory number call to test the speaker volume. While
listening to the resident's voice, turn the adjustment clockwise for
more volume, counterclockwise for less volume.
Display Contrast Adjustment
If the lighting in the area or the viewing angle of the display in the
installation causes the display to look too dark or too light, the display's
contrast can be adjusted.
1. Locate the DISPLAY CONTRAST adjustment on the main circuit
board.
2. Turn the adjustment clockwise and counterclockwise until display
has the best visibility.
S S y y s s t t e e m m D D i i a a g g n n o o s s t t i i c c s s
Several components on the main circuit board are for monitoring the
system during operation. When calling for technical assistance, NuTone's
Technical Service Department may ask the installer to use these
components to diagnose the system.
On-board Indicators
Eleven LED indicators are on the main circuit board. Refer to the figure
for the location of each indicator.
• POWER lights when power is present at the power terminals.
• RELAY CHANNEL "A" lights when the Channel "A" relay is energized.
• RELAY CHANNEL "B" lights when the Channel "B" relay is energized.
• DATA DCD (Data Carrier Detect) lights when the built-in modem is
detecting a carrier signal from the calling modem.
• DATA RX (Receive Data) lights when the built-in modem is receiving data
from the calling modem.
• DATA TX (Transmit Data) lights when the built-in modem is sending data to
the calling modem.
• AC POWER FAIL blinks if the system is running on DC without any AC pres-
ent.
• OFF-HOOK lights when the system has the incoming telephone line siezed.
• TALK lights when the system is communicating over the telephone line.
Display Contrast Adjustment
Pressing the SYSTEM RESTART button will reboot the system's
microcontroller. NO SYSTEM INFORMATION WILL BE ERASED.
1/14/06
10:39 AM
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