Jetter JC-120MC, Руководство пользователя

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Jetter AG 45
JC-120MC Mechanical and electrical installation
X11.3 [RDB]
X11.5 [SDB]
X11.1 [RDA]
X11.7 [SDA]
33 k Ω
33 k Ω
+3V3
+3V3
33 k Ω
33 k Ω
R
T
R
T
R
T
R
T
Number Part Function in the case
of RS-422
Function in the case
of RS-485
1
Receiver Receives data Unused
2
Receiver/transmitter Transmits data Receives and transmits
data
3
Serial line Twisted line of the serial interface
4
R
T
Terminating resistor
Connect a terminating resistor to both serial lines in the following cases:
 Long lines
 High baud rates
Select a terminating resistor which corresponds to the impedance of the line
used.
Block diagram
Terminating resistor