| 摘要 |
A physical-layer cross connect (PLCC) includes a system-bus interface; a switching circuit having externally accessible data ports, an internal-only PLCC-controller port, and a data bus dynamically configurable among the data ports and the PLCC-controller port; transceivers connected to the data ports and to a signal bus; data jacks connected to the transceivers; and a PLCC controller interfaced with the system-bus interface, the data bus, the signal bus, and the PLCC-controller port and configured to: receive path-configuration commands from a management controller and responsively configure connections on the data bus; receive mirrored copies of inbound data by selectively configuring connections on the data bus between the PLCC-controller port and the various data ports; analyze the mirrored copies to determine informational characteristic(s); and report the characteristic(s) to the management controller. |
