Tandberg Display TDV 5010

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1st Generation
TDV-5010-keyboard-1991.jpg
Photo: Norsk Teknisk Museum
Model no. TDV 5010
Branding Tandberg Data
Tandberg Display
Manufacturer Tandberg
Layouts ISO
Keyswitches Siemens STB 21
Keycaps Spherical double-shot ABS (-1992)
Spherical dye-sublimated PBT (1992-)
Interface PS/2
Years of production 1990 - late 1990s
2nd Generation
Model no. TDV 5010
Part number G84-9021SPMDE
Branding Tandberg Display
Manufacturer Cherry
Layouts ISO
Keyswitches Cherry ML
Keycaps Spherical dye-sublimated PBT
Interface PS/2
Years of production late 1990s - 2004

The TDV 5010 is an MF2 keyboard, first made by Tandberg Data, later by Cherry for Ergonomic Office Systems under the Tandberg Display brand. The 1st generation of the TDV 50nn series of keyboards was based on the keyboard of the TDV 1200 terminal, the first one to use the PS/2 protocol. Since the PCBs of all boards of the family shared basically the same design, they all had TDV 1200 printed on them. The TDV 5nnn devices were meant to be used with any PC, not necessarily Tandberg ones. To ease production, all keyboards of the series are fully equipped with switches, 20 of which are extra beyond the standard. The PS/2 controller tags them with a 0x80 prefix. With the TDV 5000 and TDV 5020 siblings, these keys have specific caps for the NOTIS text system of Norsk Data, whereas with the TDV 5010 keyboard, they are hidden under blanks. This terminal keyboard legacy explains the somewhat unconventional shapes, sizes and positions of some of the keys.

The first generation was equipped with Siemens STB 21 switches. It also had Siemens ABS keycaps until the rebranding to 'Tandberg Display' in 1992, when PBT caps were introduced with Helvetica instead of DIN lettering and some mechanical changes on the inside, whereas the colours and shapes exactly match. Late keyboards of the 1st generation look identical to those of the second generation, except for the additional Windows 95 keys of the latter. The transition to the 2nd generation must have happened sometime during the years 1996-98: the earliest possible year is 1996, when Cherry ML switches were introduced; the earliest known 2nd generation keyboards are from 1998, when the batches sold at eBay in 2009 and 2011 were made.

In 2004, Tandberg Display keyboards were taken off the market.

Gallery

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