
ZIRC-SD3502 Z-Wave AV / IR Remote Control 
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All information are correct at the time of release  Sigma  Designs owns  the proprietary rights to the information contained  herein this document  It may  not be 
edited, copied or circulated without prior written agreement by Sigma Designs    
© 2012 Sigma Designs, Inc   
 
 
2. USAG  
 
ZiRC is a low cost Remote Control reference design based on the SD3502 for dual-mode, Z-Wave and 
InfraRed (IR), control of Sigma Designs Internet Television (IPTV) Set Top Boxes (STB)   User feedback is 
through a tricolor LED (red, green, amber) located next to the power button   As a Z-Wave device it can 
interwork with any other Z-Wave certified device from any vendor  
 
2.1 Z-Wave Network Overview 
Z-Wave®  is  an  interoperable,  lightweight  wireless  technology  that  empowers  both  consumers  and 
manufacturers with an ecosystem of products that work together  
This product can be included and operated in any Z-Wave network with other Z-Wave certified devices 
from other manufacturers and/or other applications  All constantly powered nodes within the network 
will act as repeaters regardless of vendor to increase reliability of the network  
 
2.2 Initial Inclusion 
To  start  using  a  newly  acquired  ZiRC,  set  the  STB  into  inclusion  mode     Insert  2  AAA  batteries  as 
indicated in the battery compartment of the ZiRC  
Any button press on the ZiRC will start learn mode   While in learn mode, the LED will blink amber every 
3 seconds   After a few seconds, the LED should blink green 3 times on success or red on failure   Any 
button press would exit the inclusion mode with failure  
After successful inclusion, the ZiRC waits 10 seconds for any association to be set up during which time 
the LED should blink amber every 3 seconds   If any association was successfully set up during this time, 
it will blink green thrice   Otherwise any button press or timeout would exit the association mode with 
the LED blinking red thrice  
After  this  process  the  ZiRC  goes  to  sleep  and  is  now  ready  to  control  the  STB     After  any  successful 
exclusion or reset operation, any button press will enter inclusion mode  
 
2.3 Audio Video control 
To switch the ZiRC between Z-Wave AV and IR mode, press & hold SETUP+RED for 1 second   The ZiRC 
remembers the mode it is in even when its batteries are replaced  
On entering IR mode, the LED will blink amber once   All button presses are acknowledged by a single 
amber blink, as there is no feedback from the STB for IR   Note that while in IR mode, only the switch 
mode combo will work and all other combos are ignored