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River Song's Post TU Telephone Network (PBX)
20 April 2014, 08:56,
#8
RE: River Song's Post TU Telephone Network (PBX)
Powering that PBX will be rather easy. 5v 0.75a is USB standard, so any USB port that'll run from your chosen off grid power source will do the job. 12v and 24v USB charger ports are widely available and inexpensive.

USB Hot voltage standard is:

Signal
5 volt DC

Max. voltage
5.00±0.25 V (pre-3.0); 5.00+0.25-0.55 V (USB 3.0)

Max. current
0.5–0.9 A (general);
5 A (charging devices)
72 de

Lightspeed
26-SUKer-17

26-TM-580


STATUS: Bugged-In at the Bug-Out
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RE: River Song's Post TU Telephone Network (PBX) - by Lightspeed - 20 April 2014, 08:56

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