"We aim to have you YELLing and shouting with satisfaction"
home | about us | services | Dealer locations | news | careers | downloads | contact us
12khz circuit
After line reversal, the 12 kHz pulse is injected transversally on the line and no earth return path is required at the payphone.
Back to the main page
On how obsolete Australian landline payphones work
on CLM 12 and CLM 50 metering
