Crestron cen-io User Manual

Ethernet Input/Output Module 

Crestron CEN-IO

ERR (Ethernet) 

This LED illuminates when an Ethernet protocol error is detected.  

RELAY (1 - 8) 

These LEDs illuminate when respective relay is closed.  

I/O (1 - 8) 

These LEDs illuminate when the input or output voltage threshold for respective 
INPUT ports are exceeded.  

The table below provides a summary of leading specifications for the CEN-IO. 
Dimensions and weight are rounded to the nearest hundredth unit.  

Power Requirements

12V DC

Relay Closure Rating

24V AC/DC, 1A

Input Threshold (per channel)

2.5V DC

Input Analog Voltage Range (per channel)

0 to +10V DC

Input Digital Voltage Range (per channel)

0 to +24V DC (compatible with
TTL & CMOS digital signals)

Switch Current (per channel)

2.5mA (contact closure to ground)

SIMPL™ Windows®

Version 1.30.01 or later *

CNX Operating System

Version 5.04.11 or later

Dimensions & Weight 

Height:  1.70 in (4.32 cm)
Width:   7.07 in (17.95 cm)
Depth:   6.32 in (16.06 cm)
TBS lbs. (TBS kg)

 

* 

The latest software versions can be obtained from the Software Downloads page 
(Simplwin Library) of the Crestron website (

. New users are required 

to register in order to obtain access to the FTP site.  

As of the date of manufacture, the unit has been tested and found to comply with 
specifications for CE marking. 

 

NOTE:  This unit complies with part 15 of the FCC rules. Operation is subject to the 
following two conditions: (1) these devices may not cause harmful interference, and 
(2) these devices must accept any interference received, including interference that 
may cause undesired operation.  

Refer to the hookup diagram on the next page. Other than making the power 
connection last, complete the connections in any order. The only connection not 
shown in the diagram is the Ethernet/LAN connection made to the front panel of the 
unit. Use a CAT 5 cable; not supplied.  

•  Ethernet Input/Output Module: CEN-IO