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TELECOM 247 » Telephone CO supply

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Ivor Jones
 Post subject: Telephone CO supply
PostPosted: 2007-11-16 13:56:40
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Joined: 2007-11-16 13:56:40
Ivor Jones wrote in message
news:5q5lrnFu6qbgU1@mid.individual.net
: : wrote in message
: : news:8b8a3b8a-e02d-404a-b16a-d231440406df@e25g2000prg.googlegroups.com
: : : : why telephone offices have -48V sypply ?
: :
: : Its 50V actually, to power the exchange (not CO were
: : British here) equipment, why do you ask..?

Sorry that should of course read -50V :-)

Ivor


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