Crestron cen-io User Manual

Crestron CEN-IO 

Ethernet Input/Output Module

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.  

 

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