The TA-7070 Phone Time Counter is activated
by the PTT exchange. It is connected via the Phone line to
any phone using DTMF dialing method. It uses 12-16 KHz pulse,
or polarity reverse, or a timer. Its purpose is to detect the
time for each call and the phone number which was dialed. This
is shown on the large-character LCD display showing 16 x 2 digits
very clearly.
The counter shows the number of pulses for each call or for
call time. Accumulating pulses are shown at the right side of
the LCD , and current pulses or current call time are shown
on the left side, having Automatic Lock for next dialling and
release. It also shows the phone number which was dialed.
After each call the counter will be reset to zero by pushing
the
" Lock/ Unlock " button.
The TA-7070 Phone Time Counter is operated by a standart
9V 0.3A DC adaptor and is connected to the Phone line and
Phone by an 2 RJ-11 connectors.