i3 International SRX PRO User Manual page 13

Chapter 1. SRX-Pro Server Core Features
1.1.7.2. Software Protection Key (SPK)
Software Protection Key (SPK) is a USB hardware device that protects the SRX-Pro Server software from being used on
an unauthorized system. This device is installed inside of your DVMS/NVR unit or is shipped together with your SRX-Pro
Server software package when bought separately. If you have purchased SRX-Pro Server software package to be used
on your own NVR system, make sure to plug in the SPK device into a USB port before installing SRX-Pro Server software.
SPK is programmed by the manufacturer for each unit. Software Protection Key controls the number of video channels,
number of audio channels (where applicable), frame rate, Video Analytics and number of POS lanes available to the user.
SPK configuration may be upgraded remotely to increase the supported number of channels/frame rate, video analytics,
etc.
Without a proprietary SPK, SRX-Pro Server will not run. SPK must stay plugged in at all times. Never remove
the SPK from the unit or attempt to use the same key on different unit(s).
1.1.7.3. Software Limitations
Max. recording speed at 320x240/352x240/640x240/704x240 = 720 fps
Max. recording speed at 640x480/704x480/704x480 = 480 fps
Max. number of Ax301C2M/Ax301D2M cameras supported by SRX-Pro Server that can be used at the same time max-
imum 12 c2m/d2m per system
The maximum number of supported IP megapixel cameras per system will depend on the resolution and frame rate con-
figured for each camera.
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