Toa EXES-6000, Operating And Troubleshooting

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3. Dial Signal Receiving System
Fig. 18 Dial Signal Receiving System
Let's assume that 202 (station number) is dialed
at station No. 200. The dial pulse detector located
in the LM unit and intended for station No. 200, as
explained just before, delivers the following dial
pulses to the output.
These pulse streams comprising "2", "10" and
in the above Figure, and are
"2" pulses enter
inverted by a transistor. They then pass through
the dial data bus line, and go into Input Port (IP)
No. 0 of the CP unit. The CP unit is cyclically
sending from its Output Port (OP) the scan strobe
signals to each of the 16 LM units in a serial
manner (LM1 through LM16, again LM1 through
LM16 ...... this is repeated), and reads dial data of
8 stations contained in each LM unit in a fraction
of second simultaneously with the transmission
of the scan strobe signals.
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