Polycom MX392 - Manual (Page 40)

Now, place the cursor in the A CTIVATED C OMMAND column for Logic Input 1 and select I NSERT , M ACRO ,
0 ("MUTE ON"). Now, whenever the switch goes Active Low (0V DC), the Vortex Device will
execute Macro 0.
Now, right click in the D EACTIVATED C OMMAND column for Logic Input 1 and select I NSERT , M ACRO , 1
"(MUTE OFF"). Now, whenever the switch goes Active High (+ 5V DC), the Vortex Device will
execute Macro 1.
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