Interlogix KTD-405 Series User Manual - Manual (Page 22)

KTD-405/KTD-405A/KTD-405-2D Controller Keypad
User Manual
18
Setting audio attenuation
When using a KTD-336 audio converter, set the attenuation jumpers to the ON position (Figure 13). 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 13. Audio I/O board with attenuation jumpers
Back of keypad
(with cable ports)
Attenuation
jumpers
Front of keypad