What is Fabric interface?
The Fabric Interface allocates signal pairs differently than the Base Interface. A Fabric Channel is comprised of two rows of signal pairs for a total of eight signal pairs per Channel. Thus, each connector supports up to five Channels available for Board to Board connectivity. A Channel may also be viewed as being comprised of four 2-pair Ports. What is Updated channel interface? The update channels are backplane connections between pairs of front cards that operate on a redundant basis . Application software can use the update channel for redundancy interlock, or to provide a direct connection that bypasses the (indirect) fabric interface What is a differential pair? Differential mode signals propagate through a pair of traces. One trace carries the signal as we normally understand it, the other carries a signal that is (in theory, at least) exactly equal and opposite What are Dual Star and Dual – Dual Star backplane topologies? Dual Star Topology Backplanes require two dedicated Slo