Adjustable and modular backplane assembly for providing a fiber-optics communication backplane
A modular and adjustable backplane assembly for providing a fiber-optics backplane interface to a plurality of router cards functioning as a data router is provided. The assembly includes a first portion having a first array of connectors for interfacing with a compatible array of second connectors engaging specific ones of the router cards, and a second portion having a second array of connectors for interfacing with a compatible array of second connectors engaging specific others of the router cards. The mechanics of the assembly enable a moveable attachment with respect to the first and second portions such that they may be positionally adjusted during mounting, and wherein external data paths are provided from individual ones of the connectors to individual others of the connectors by fiber-optic conductors.
1. A modular and adjustable backplane assembly to provide backplane communication between a first and second signal interface and a corresponding first and second set of touter cards in a first packet router cabinet to a first and second signal interface and a corresponding first and second set of router cards in a second packet router cabinet, comprising:
a first portion mounting a third signal interface configured to engage the first signal interface of the first packet router cabinet;
a second portion mounting a fourth signal interface configured to engage the second signal interface of the first packet router cabinet;
a third portion mounting a fifth signal interface configured to engage the first signal interface of the second packet router cabinet;
a fourth portion mounting a sixth signal interface configured to engage the second signal interface of the second packet router cabinet;
adjustment mechanisms allowing relative movement between the first and second portions, and the third and fourth portions respectively, while preserving the modularity of the backplane assembly;
a first signal conductor assembly engaging the third and fourth signal interfaces to communicate signals between the first set of router cards and the second set of router cards in the first packet router cabinet;
a second signal conductor assembly engaging the fifth and sixth signal interfaces to communicate signals between the first set of router cards and the second set of router cards in the second packet router cabinet; and
a seventh signal interface connected to one or both of the third and fourth signal interfaces at the first cabinet; and
an eighth signal interface connected to one or both of the fifth and sixth signal interfaces of the second cabinet;
wherein the seventh signal interface is connected to the eighth signal interface enabling router card sets housed in the first packet router cabinet to communicate with the router card sets housed in the second packet router cabinet thereby providing a scalable router.
2. The backplane assembly of claim 1 wherein the first and second signal interfaces in the first and second packet router cabinets are groups of connectors for connecting signal conductors to individual ones of router cards in the first and second router card sets of each cabinet.
3. The backplane assembly of claim 1 wherein the first and second signal interfaces in the first and second packet router cabinets are connectors to printed circuit boards (PCBs) that are in turn connected to the first and second set of router cards in each cabinet.
4. The backplane assembly of claim 3 wherein the signal conductor assemblies comprise a cable of electrical conductors having end-connectors to engage the electrical connectors at the PCBs.
5. The backplane assembly of claim 1 wherein the third, fourth, fifth, sixth and seventh signal interfaces comprise fiber-optic connectors, and the signal conductor assemblies comprise one or more fiber-optic fibers having end-connectors for engaging the fiber-optic connectors.
6. The backplane assembly of claim 5 wherein the one or more fibers comprise one or more bundles, ribbons or cables.
7. The backplane assembly of claim 1 wherein the third, fourth, fifth, sixth and seventh signal interfaces comprise electrical connectors, and the signal conductor assemblies comprise one or more cables of electrical conductors having end connectors to engage the electrical connectors.
8. The backplane assembly of claim 1 wherein the adjustment mechanisms comprise telescopic engagement elements allowing adjustment of separation between the first and second portions and the third and fourth portions respectively.
9. The backplane assembly of claim 8 wherein the adjustment mechanisms each comprise a locking mechanism for securing the telescoping first and second portions and third and forth portions after adjustment to engage the first and second interfaces of each cabinet.