According to the Wikipedia
entry, Cannon Electric Company introduced the now-familiar
(D-subminiature) connector format in 1952. This advertisement in a 1954 issue of
Radio & Television News magazine is the first one I recall seeing.
D-Sub connectors were a really big deal back in the 1980s when personal
computers (PCs) first appeared. CRT monitors used them, printers used them,
scanners used them, network interfaces used them, mice and keyboards used them
(those that didn't use PS/2
connectors, which were an invention of IBM for their Personal System 2
computers). Nowadays the USB
(Universal Serial Bus) and HDMI
(High-Definition Multimedia Interface ) connectors have replaced most D-Subs in
the computer cable realm. Of course with everything going wireless, connectors
and cables of all sorts are rapidly disappearing except those used for charging
- and wireless charging stations are obsoleting them as well. The Cannon Type U
round DIN types bore a resemblance to PS/2, or maybe vise-versa.
Cannon Electric Sub-Miniature Plugs Ad
TYPE "D" ... Up to 50 Contacts
For Your Miniaturization Program!
Save space ... save weight ... rugged. 1000's of uses! Pressed steel shells.
Heavily gold-plated copper-alloy 5-amp. contacts give untarnishing high surface
conductivity and corrosion resistance. Take #20 solder-tipped wires. Polarization
means. Salt-spray resistant shells. Flashover 1700v dc.
TYPE "U" ... Up to 12 Contacts
Round steel shells. Pin receptacles have fused vitreous insulators to give true
hermetic seal. Adaptable to box-or panel-mounting. Pin or socket plugs have resilient
moisture-sealing insulators, gold-plated contacts. Bayonet latch. Cord connectors
have resilient sleeves. Contacts 5-amp. Flashover 1700v dc.
Write for Cannon Sub-Miniature Bulletins ...
Today! Refer to Dept. 145
Cannon Electric Company, 3209 Humboldt St., Los Angeles 31, Calif.
Representatives and Cannon distributors in all principal cities.
Posted June 16, 2020