Secure I/O
Secure I/O Expansion Module
Secure I/O provides secure door control as well as I/O expansion via encrypted communication when combined with other Suprema devices.


  • Enhanced security due to encrypted communication with connected devices
  • Affordable price with easy installation
  • Multiple input/output for expandability



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Model Name


  • Operating Temperature

  • Dimension (WxHxD, mm)


  • RS-485

  • TTL Input

  • Relay


  • Power

Secure I/O

-20°C ~ 50°C (-4°F ~ 122°F)

142.5 x 81.9 x 39 mm


4 x TTL

2 x Relay

12V DC(500mA)

1)DESFire EV2 cards are supported by having backward compatibility of DESFire EV1 cards. CSN and smart card functions are compatible with .

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