10
6600-2204
Functional description
Modem
chip
control
Analog filter
Frequency
modulation
Selectable
output level
Selectable
input sensitivity
Line relay
Data
buffer
DSR
GND
VCC
GND
2 or
4-wire
GND
RTS CTS DCD RD TD
TD RD
Relay
output
DIP-switches
RS-232
RS-422/485
Data
buffer
Frequency
demodulation
Modem
Processor
Modulated data
OR
Block diagram
Содержание TD-23
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