User Guide

Crestron MC2W 2-Series Professional Media Controller with RF
Analog input mode
• 4 analogs: <i1> through <i4>
• For each analog, one corresponding minimum change value:
<MinChange1> through <MinChange4>
All Versiport modes
• For each Versiport, one corresponding pullup resistor: <pu-disable1>
through <pu-disable4>
Defining a signal puts the signal into the corresponding mode. For example, defining
the analog input <i1> configures that Versiport as an analog input. A Versiport can
only operate in one mode. That is, if you define <o1> you should not also define
<i1>.
Description
Internal configuration of a Versiport
+5V
2K
pullup1
o1
S1-A
S1-B
A
Used for analog input.
Can be either a voltage
source or resistive load.
VersiPort 1
Digital Output Mode
When a Versiport is operating in digital output mode, the output pin is shorted to
ground on the rising edge of the corresponding <o> signal (switch S1-B in the
Versiport diagram is closed). When <o> goes low, the output pin is driven to a value
of +5V (switch S1-B is open).
Driving the corresponding <pu-disable> signal high can modify this behavior. This is
not recommended, though, since it causes the output pin to float when <o> goes low.
Example 1 (recommended):
The <pu-disable1> signal is driven low or left undefined. When <o1> goes
low, Versiport 1 is at +5V. When <o1> goes high, Versiport 1 is shorted to
ground.
Example 2 (not recommended):
The <pu-disable1> signal is driven high. When <o1> goes low, Versiport
1 is floating. When <o1> goes high, Versiport 1 is shorted to ground.
Digital Input Mode
When a Versiport is operating in digital input mode, the corresponding <i> signal
goes high whenever the C2I-MC2-IO4 detects that the Versiport is shorted to ground
(threshold < +2.5V).
Operations Guide - DOC. 6143 2-Series Professional Media Controller with RF: MC2W • 25