Polycom MX392 - Manual (Page 35)

When the membrane switch is pushed again, the Vortex Device toggles the state from unmuted to
muted. Now, the LED should not be illuminated since the input from the MX392 is now muted.
Both LED's (Conference Composer and MX392) should not be illuminated:
M
OMENTARY
O
PERATION
M
UTE
A
LL
E
XAMPLE
t's say that you have 2 Vortex units linked together via EFBus--1 Vortex EF2280 at Device ID 00
rst, set DIP Switch S2, and S3 to ON and set S1 and S4 to OFF. Then, connect SWTICH OUT to
D
EFAULT
C
ONDITIONS
rst, you want to make sure that the Vortex Device has all microphones unmuted as part of the
at
M
ACROS
Le
and 1 Vortex EF2241 at Device ID 01. When someone pushes and holds the membrane switch on
one microphone, you want that action to mute all microphones as well as turn off the LED as long
as the switch is held by the user. When the switch is released, all microphones are unmuted. This
example explores the process in achieving that goal.
Fi
one of the Logic Input pins 1-24. Connect LOGIC GND to Logic Output pins 21-25. Connect LED IN
to one of the Logic Output pins 1-20.
Fi
Power on Preset. Next, you need to make sure that if the unit is controlled by a control system th
the proper commands are sent to the Vortex Device to unmute the microphones when the room is
used for conferencing or sound reinforcement purposes. Remember that since the requirement is
push to mute, the user of the microphone is the one that must initiate the activity of muting the
microphone.
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