Cloud Electronics MPA626 - Manual (Page 7)

6 MPA-626: Installation and Operation Manual
Wiring a CPM-4 to MPA-626 Amplifiers
Wiring Multiple CPM-4 Microphones to an MPA-626
The access inputs can also trigger the following functions:
1. Chime Location of Jumpers J3,4,5,6,7&8
Optional depending upon the setting of
jumpers J8 and J7 for Mic 1 and 2
respectively
2. Muting of music signals
Optional depending upon the setting of
jumpers J4 and J3 for Mic 1 and 2 respectively.
Repositioning Jumper J6 sets the amount of
attenuation for Mic 1&2. The 30dB setting is
intended to provide a 'voice over' function. The
60dB setting has two intended uses:
(i) To provide a more dramatic 'voice over'
during announcements.
(ii) When restoration relays are used they
could increase the volume of the music signal,
the 60dB attenuation will prevent this from
happening.
11-07-02 V4