Renseignements généraux

Nº de série

S/O

Nº de partie

5

Nombre total de parties

8

Ou

S/O

Brevets

S/O

Description générale

Synthetic board with synthetic components and metal connectors, wires and parts

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

12,2 cm

Largeur

8,5 cm

Hauteur

5,0 cm

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Technologie informatique

Catégorie

Dispositifs numériques

Sous-catégorie

S/O

Fabricant

Ou

Nortel

Pays

Canada

État/province

Ontario

Ville

Ottawa

Contexte

Pays

Canada

État/province

Ontario

Période

ca. 1996-1997

Canada

Bell Northern Research, was the research and development subsidiary of Northern Telecom (later Nortel Networks) and Bell Canada. It was built by Northern Telecom at its Trans-Canada plant in Montreal. Northern Telecom and its predecessor, Northern Electric, was for decades Canada’s largest manufacturer of telecommunications equipment. Originally a subsidiary of the AT&T-owned Western Electric, for which it manufactured American-designed products for the Canadian market, Northern Electric became Canadian-owned in the 1950s and in the 1960s began to design and produce equipment to meet the distinctive needs of Canadian telecommunication companies. In the 1970s, through its new research subsidiary, Bell Northern Research, the company made a concerted shift from conventional analogue equipment into the emerging field of digital communications, becoming in the 1980s the first equipment supplier to provide a complete line of fully digital switching and transmission gear. During this decade the company moved aggressively into export markets, and opened manufacturing and R&D operations in several countries. The company’s sales soared during the internet boom of the 1990s, but a combination of poor financial decisions and a failure to maintain its technological edge led eventually to its bankruptcy in 2009. The original Bell Northern facilities were designed with cutting edge telecommunications research and development in mind with the first three buildings on the campus featuring laboratories, an extensive research library, and an anechoic chamber. The anechoic chamber was the focal point of the Bell Northern Research acoustics research examining both the technology and placement of speakers and microphones in telecommunication devices. The anechoic chamber group was organized under the Industrial Design and working together with design were responsible for the development of the acoustic properties of most products. (From the Acquisition Proposal, see Ref. 1)

Fonction

Insulating board on which are mounted electronic components such as transistors or integrated circuits, which allow computing process to occur.

Technique

According to David Cuddy, former director of the Nortel Acoustics Laboratory, this prototype was used to determine the acoustical properties of the intercom arrangement. To limit the acoustic interference caused by sound reflection and delay to the microphone, the microphone is placed close to the surface of the table. (From the Acquisition Proposal, see Ref. 1)

Notes sur la région

Inconnu

Détails

Marques

Printed on the proper front of the board: "NTHK1330 A0653786 01"/ Handwritten on one component on the proper front: "362/ [BA30TT2]/ Printed on various components on the proper front: "ATMEL535/ 24C01A/ SC25"/ "NORTEL [logo]/ QMV636BT5/ B605100/ B22BS9609/ MALTA"/ "QMV635AT5/ F61322A/ 9622 SS/ MALTA"/ "nt 9609/ QMV647 AH5/ 50946A"/ "MT8843AS/ [logo] 9612 CR"/ "HALO/ TGM-/ 210NS/ 9606"/ "MAX845/ ESA/ 611"/ Note: There are additional small numbers on several of the components, however what is recorded here are the main markings.

Manque

Appear complete

Fini

Predominantly green synthetic board with a border of a lighter shade of green and various lines of a darker shade of green. On the proper front are two silver coloured, J-shaped metal prongs, many small silver-coloured metal holes and some white wires connected some of the points. On the proper back are many small, black, white or silver-coloured components attached to the board with gold- or silver-coloured connections. On the components are white and black markings.

Décoration

S/O