GrahamH

GrahamH

Posted on 07/14/2015


Photo taken on July 15, 2015


See also...


Keywords

test
report
telecommunications
transmission
channel
link
analogue
analog
australia
line
telecoms


Authorizations, license

Visible by: Everyone
All rights reserved

102 visits

TelecomsTestSheet

TelecomsTestSheet
A test sheet used to record basic measurements on a 4 wire plus E & M circuit. For this project the functionality was mostly derived from either two pairs of copper wires or a 64K slot from a 2M PDH stream.

The links connected train radio base station controllers with the central control for the railway route.
See www.ipernity.com/doc/grahamh/24117033/in/group/873405

Lorenzo Kjell Salmonson has particularly liked this photo


Comments