GrahamH

GrahamH club

Posted: 30 Oct 2011


Taken: 30 Oct 2011

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Keywords

code
traffolyte
pmg
telstra
microwave
telecommunications
telecom
idf
nsw
wire
jumper
analogue
analog
colour
australia
color
radio
traffolite


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Jumper_colours0001

Jumper_colours0001
Old work. Colour coding for wire used at PMG / Telecom Australia sites to interconnect various controls and alarms which were part of analogue microwave radio links - 1960s to 1980s. IDF = intermediate distribution frame, a bank of terminals for cables from equipment which enable interconnections to made and varied as needed.

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