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Crestron CEN-IO
Ethernet Input/Output Module:
CEN-IO
Description
Operations Guide - DOC. 5718
Functional Description
The CEN-IO is an Ethernet interface device for VersiPort input/outputs and relay
closure outputs. It detects contact closure, digital and/or analog input/outputs and
provides dry contact closure outputs. All signals are monitored/controlled via
10BASE-T Ethernet using standard Internet protocols. The CEN-IO includes a
power pack (either a 500 mA pack for 120V AC or a 1000 mA pack for 220V AC
supply which is provided with the international configuration, CENI-IO).
The CEN-IO contains eight VersiPorts. These eight input/output connections are
referenced to a common ground. Each connection can act as either a digital output
(<o1> through <o8>), a digital input (<i1> through <i8>), or an analog input
(<ain1> through <ain8>). Pullup resistors may be turned on or off for each
input/output connection (<pullup1-dis> through <pullup8-dis>). The following
subsections make use of the reference diagram, shown below.
CEN-IO Reference Diagram
Ethernet Input/Output Module
Ethernet Input/Output Module: CEN-IO • 1
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