Voltage differential type line driver output (PL82-#)
Line driver
SIG
MC34C87
Outputs: A/B phase, alarm
signal
18
PL82
SIG
*SIG
AWG28 or thicker twisted
pair cable
+Vcc
0 V
PL82 Receiving side
5V
R
50 m or less
Reset Circuit
5V
Transmitting side
X RES
390
0 V
Receiving device
Line receiver: MC3486 or equivalent
product
100
100
: This receiving circuit is an example.
*