KTD-405/405A User Manual
Operation
1036547C / December 2003
41
5.3.2 T
WO
-W
AY
A
UDIO
To establish two-way audio communication with a site:
1)
Press
0
through
9
to enter a site number.
2)
Use the
vol
(volume) keys to adjust the audio level.
3)
Press
aux 4
to talk to the site. The
aux 4
key on the audio-version of the keypad automatically
defaults to talk mode.
Note:
When using a KTD-336 audio converter, set the attenuation jumpers to the ON position. See Figure 15. The attenuation
jumpers are located on the audio/IO card, which is attached to the keypad’s base plate. When not using an audio converter, leave
the attenuation jumpers in their default OFF position.
Back of keypad
(with cable ports)
Attenuation
jumpers
Front of keypad
Figure 15. Audio/IO card with attenuation jumpers
Summary of Contents for KTD-405
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