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U Quick Start Guide
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Copyright © Innovative Technology Ltd 2018
Doc: ICU Quick Start Guide
Version: 1.2
Page 13 of 17
Poll commands should be sent every 200ms. If the ICU does not receive poll command
for 5 seconds, it will automatically revert to the disabled state. An Enable command
(0x0A) must be sent to the ICU before any further processes will be performed.
The possible responses to the Poll command are outlined below, each response must
be handled appropriately within the machine software:
Response Hex Code Description
Disabled 0xE8 Device is in a disabled state, send the Enable
command to use the device.
Process Event 0x11 If data byte is 0x01, device is initialising. Please
wait until this is no longer reported before
attempting to enable or modify the ICU.
Face Detected 0x14 Face detected in central camera’s field of view .
Age Detected 0x15 Depending on ICU settings (Age Verify or Age
Estimate) this will report either a Pass/Check or
the estimated age. See SSP Manual for further
explanation of the data bytes.
Error Event 0x16 An error occurred. Details are provided in the
data transmitted.
Data Processing 0x17 The ICU device is currently processing a result.
Slave Reset 0xF1 The ICU device has been powered up or power
cycled and has run through its reset process.
Further information regarding SSP is available in the following manuals:
Implementation Guide:
SSP Implementation Guide (GA973): Information for programmers and integrators
Protocol Manual:
Protocol Manual – SSP (GA138): SSP Interface Protocol Specification for integration