BrightSign 4K Series Hardware Manual page 3

Environmental and Power Usage ..................................................................................... 16
Theory of Operation ........................................................................................................... 18
Power Supply ........................................................................................................................................ 18
Reset ..................................................................................................................................................... 18
BCM7444/7252 CPU ............................................................................................................................ 18
Built-in Flash ......................................................................................................................................... 18
SDRAM ................................................................................................................................................. 18
Serial Port ............................................................................................................................................. 19
Audio Outputs ....................................................................................................................................... 19
On-Board LEDs ..................................................................................................................................... 19
On-Board Switch ................................................................................................................................... 20
Reset Switch/GPIO Button .................................................................................................................... 20
SDHC/SDXC and MicroSD Slots .......................................................................................................... 21
NAND Flash .......................................................................................................................................... 21
Ethernet ................................................................................................................................................ 21
USB 2.0/3.0 ........................................................................................................................................... 21
Dimensions ......................................................................................................................... 22
Mounting Procedure .......................................................................................................... 23