GE KTD-405 User Manual page 44

40 KTD-405 Keypad
User Manual
Two-way audio
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 (Figure 49). 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.
Figure 49. Audio I/O board with attenuation jumpers
Attenuation
jumpers
Back of keypad
(with cable ports)
Front of keypad