The backplane hosts the SCB by providing the power supply and expands
the 20 GTP pairs to its SFP cages.
9 1x2 SFP cages with light pipe and EMI gasket are used.
Active and Link bi-color LED for each port.
An additional management 100Mbps Ethernet port is SFP form are provided.
It is converted from the USB port with AX88772BLI and works in parallel
with the existing RJ45 management port.
Two USB debug ports for FPGA and ARM respectively.
Bi-color LED for switch status and power status.
A switch to turn on/off the AC/DC is installed in the front panel to
convenient the power cycle operation.