Nortel Networks Corporation

Douglas B Cross

Kalvin W Korpela

Kim Bryon Roberts

Luc Boucher

John Clayton Atkinson

Roger Carroll

Simon E Shearman

Marko Nicolici

Geoffrey G Skanes

Howard J Rajala

Tim A Venus

Aleksandar Vukovic

Paul Van Leeuwen

The invention refers to a telecommunications system comprising a module rack that defines a core bay, a service plane and a rack interface plane where the service plane is transverse to the rack interface plane. The core bay is in part bounded by the service plane and the rack interface plane. The telecommunications system also comprises a series of electronics modules each defining an electronics orientation plane where each of the modules includes two opposed cooling surfaces oriented substantially parallel to the electronics orientation plane. Each of the electronics modules is removably secured within the core bay. The series of the electronics modules forms an array such that their electronics orientation planes are substantially perpendicular to both the rack interface plane and the service plane. The array also defines at least one coolant stream passage across each cooling surface. Further the telecommunications system includes a coolant movement means for moving a coolant through the coolant stream passages and across the rack interface plane. As such, the coolant convects heat away from the cooling surfaces of electronics modules more efficiently and effectively than found in the prior art as it, amongst other things, shortens the distance over which the inlet coolant is required to travel to cool the same functional density and provides a coolant to the passage at approximately a uniform temperature for each module.

Telecommunications system

A backplane power landing system having a backplane to which is attached extruded metal mounts on which are mounted compact power filter modules. The mounts are adapted to be conductively sealed, for the purpose of electromagnetic compatibility, to the backplane and have guidance slots to facilitate aligning the power filter modules which extend through openings in the central beam of the mount, to make contact with the backplane. The power filter modules are fastened to the mounts in a manner which maintains a conductive seal so as to deliver inputted power to the backplane filtered of radiated and conducted emission noise.

Backplane power landing system

An apparatus for providing liquid cooling to high power high capacity, switching, transport and processing equipment is disclosed. The electronics of such equipment is typically contained in metal electronics modules, with the heat being directed to the walls of the modules. A pair of cooling plates with integral coolant flow through is pressed against the metal module walls with pressure. The cooling plates remain part of the shelf and the metal electronics modules can be removed for repair, exchange or upgrade.

Liquid cooling of removable electronic modules based on low pressure applying biasing mechanisms

Growing community of inventors

Ottawa, Canada

Douglas B Cross