Polycom MX392 - Manual (Page 6)

L
OGIC
P
ORT
The Logic Input port is a female DB-25 connector where pins 1-24 can be programmed to execute
commands via the Logic Input page. Pin 25 is the ground pin and it can sink up to 500 mA of
current.
The Logic Output port is a female DB-25 connector where pins 1-20 can be programmed. Pins 21-
25 are ground pins. Each pin can source up to 20 mA of current and each ground pin can sink up to
100 mA of current.
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