ASL INTERCOM MPS Series, Configuration Manual

Page: 28 / 60

MPS-Series – Configuration Guide
U-0664-0265.doc – Issue: 03 complete, approved
Page 28 of 60
The Fade Up time is the time the signal takes to fade up when:
•
Turned on (routed);
•
Override removed.
The diagram in Figure 5 illustrates the sequence of events during the enabling and disabling of a single
audio source (e.g. background music).
Figure 5 Sequence of events for single audio source
MUSIC
FADE UP=T1
FADE DOWN= T2
T1
MUSIC AUDIO
T2
ON
OFF
The diagram in Figure 6 illustrates the sequence of events during the override of a background music source
by a Paging Microphone with chime.
Note that the background music Fade Down time (T2) is not used in this instance. Instead the microphone
Fade Down time (T4) is used to fade out the background music before the microphone broadcast starts, as
well as to fade out the microphone at the end of its broadcast.
Figure 6 Sequence of events for Paging Microphone chime overriding the background music
MUSIC
FADE UP=T1
FADE DOWN= T2
T4 T1
MICROPHONE
FADE UP=T3
FADE DOWN= T4
T3
T4
MICROPHONE
PTT
ON
ON
OFF
OFF
MUSIC AUDIO
MUSIC AUDIO
MIC AUDIO
CHIME AUDIO
MICROPHONE
SPEAK-NOW LED
Configure the fade up and down times as required.