Fujitsu Corporation

Shozo Shimada

Noboru Nakama

Tetsuya Takahashi

Tsutomu Takahashi

Hirofumi Imabayashi

Hiroshi Kadoya

Junichi Hayama

Hideo Kamatani

Daisaku Kanemoto

Hideo Miyazawa

Masahiro Shioda

Fumio Kurotori

Kiyonori Kusuda

Tomoyuki Hongoh

Mitsuo Kaetsu

Katsuya Fujii

Norio Suzuki

Takashi Sekiguchi

Norihiro Takahashi

Kazuya Oorui

A rack device includes a housing at which an electronic device and an air conditioner are installed; a partition plate that divides a space in the housing into a first space in which the electronic device is disposed and a second space in which the air conditioner is disposed; and a shielding member that divides the second space into a space in which an outlet of the air conditioner is disposed and which is coupled to a suction side of the electronic device in the first space and a space in which an inlet of the air conditioner is disposed and which is coupled to a discharge side of the electronic device in the first space.

Rack device, rack system, and housing structure

A shelf-type telecommunications device has a back wired board assembly mounted on a back of a shelf unit into which a plurality of plug-in units are inserted side by side. The back wired board assembly has a main back wired board to which at least one plug-in unit is connected and a sub back wired board to which at least one external cable is connected, the outer surface of the main back wired board and the inner surface of the sub back wired board opposing each other. The main back wired board and the sub back wired board are fitted together by using a plurality of relay connectors or pin terminals so as to electrically connect the main back wired board and the sub back wired board to each other without the need for coaxial cables, thus reducing the size of the device.

Shelf-type telecommunications device including main and sub back wired boards connected by relay connectors

An optical telecommunication unit includes a shielded case having a size adapted for mounting upon a standard open-rack frame, wherein the shielded case includes a rear panel carrying an interconnection pattern, a plurality of plug-in connectors provided on the rear panel at an inner side thereof in electrical connection with the interconnection pattern for holding plug-in units forming an optical telecommunication apparatus inside the optical telecommunication unit, wherein the optical telecommunication unit carries a plurality of interface connectors on the rear panel in electrical connection with the interconnection pattern for accepting external interconnection cables, and a rear cover is provided on the shielded case so as to cover the rear panel.

Optical telecommunication apparatus for use in an optical ring network

A communication apparatus is provided which permits system configuration to be freely changed even after electronic circuit boards are mounted to a shelf. The apparatus is a combination of an open rack and a shelf mounted on the rack, office cables for interconnecting external electronic devices are guided toward the rear of the apparatus and connected directly to external connectors of the electronic circuit boards, and a back wiring board is arranged on the rear surface of the shelf and has sheet connectors to which power supply connectors of the electronic circuit boards are connected.

Communication apparatus

Communication apparatus for converting an unbalanced signal into a

An electrical connecting arrangement is provided for establishing electrical connections of electronic printed-circuit boards detachably mounted in a cabinet of an electronic installation at a front side thereof. For the establishment of electrical connections, at least one connector is used, and a connector support member is attached to a rear side of the cabinet. The connector includes two connector halves to be coupled to each other. One of the connector halves is detachably attached to and supported by the support member, and is joined to an end of an electrical cable. The other connector half is securely attached to and by a rear side of the printed-circuit board. The connector halves are aligned with each other upon mounting the printed-circuit board in the cabinet, to thereby ensure coupling of the connector halves.

Electrical connecting arrangement for establishment of electrical

A system for extending communication equipment using flat coaxial cables, the system occupying a minimum installation space and providing equipment extensions and interface changes in a flexible manner. The system comprises a rack carrying a base shelf and at least one extension shelf. The base shelf has a plurality of base PWB assemblies inserted therein, and the extension shelf accommodates a plurality of extension PWB assemblies. One end of a flat coaxial cable bundle is attached removably to the front of each base PWB assembly. With its extra length portion left in a first tray on the base shelf, the flat coaxial cable bundle passes through the tray from front to back to enter a second tray from its back on the extension shelf. With another extra length portion left in the second tray, the flat coaxial cable bundle leaves the front end of the second tray to connect detachably to the front of each extension PWB assembly.

System for extending communication equipment using flat coaxial cable

Growing community of inventors

Kawasaki, Japan

Shozo Shimada