Optimus MX-88 Installation And Operating Instructions Manual page 26

(10) BGM INPUT LINK IN/OUT TERMINAL
Input terminals to input BGM sources, with an output in parallel.
(11) BGM INPUTS LEVEL CONTROLS
(12) PAGING MIC LINK IN/OUT TERMINAL
Paging MIC input terminals. In parallel with front panel input. Without phantom. With an
output in parallel.
(13) ALARM MESSAGE SELECT SWITCH
It selects the audio to play when the alarm contacts are closed, internal pre-recorded
message or external alarm input.
(14) EXTERNAL ALARM INPUT
(15) WP-8A CONNECTION TERMINAL
One for each input. The remote controls can control music level and source selection for
corresponding output remotely.
(16) ZONE INDIVIDUAL OUTPUT TERMINAL
Zone output terminals for Balanced Audio.
(17) ZONE OUTPUT TONE CONTROL
Bass and treble controls for zone outputs.
MX-88 Version 1.0
MX-88
AUDIO MATRIX 8x8
Page 7 of 18