[StainlessS]

Parallel Interface Kit BDKW-509 (50-pol (Centronics ?) cable

Centronics, was a company name, used as a generic term for parallel printer [EDIT: port or] cable (as is Hoover to mean vacuum cleaner).

There are many types of parallel ports, but the term has become most closely associated with the printer port or Centronics port found on most personal computers from the 1970s through the 2000s.
It was an industry de facto standard for many years, and was finally standardized as IEEE 1284 in the late 1990s, which defined the Enhanced Parallel Port (EEP) and Extended Capability Port (ECP) bi-directional versions.
Today, the parallel port interface is virtually non-existent because of the rise of Universal Serial Bus (USB) devices, along with network printing using Ethernet and Wi-Fi connected printers.

https://en.wikipedia.org/wiki/Parallel_port



EDIT: Google finds nothing for "BDKW-509". [ Not even in this thread ??? (well it does find a web page full of letters and numbers "bdkw ;509", but thats all) ]

Google:- https://www.google.co.uk/search?sour...4dUDCAg&uact=5
Bing:- https://www.bing.com/search?q=BDKW-5...E5D0A10997D7F0
Yandex:- https://yandex.com/search/?text=%22BDKW-509%22&lr=10393
Swisscows:- https://swisscows.com/web?query=%22B...2&region=en-GB
Duckduckgo:- https://duckduckgo.com/?q=%22BDKW-509%22&t=hk&ia=web