DS4800 REFERENCE MANUAL
62
5
5.2.2 RS485
Full-Duplex
Interface
The RS485 full-duplex (5 wires + shield) interface is used for non-polled communication
protocols in point-to-point connections over longer distances (max 1200 m / 3940 ft) than
those acceptable for RS232 communications or in electrically noisy environments.
The connector pinout follows:
25-pin
Name
Function
2
TX+
RS485 Transmit Data +
3
RX+
RS485 Receive Data +
4
TX-
RS485 Transmit Data -
5
RX-
RS485 Receive Data -
7 GND
Ground
DS4800
TX+
2
TX-
4
RX+
3
RX485
RX-
5
TX485
7
GND
GND
USER INTERFACE
+
-
+
-
Chassis
1
Figure 52 - RS485 Full-duplex Connections
NOTE
For applications that do not use RX signals, do not leave these lines floating
but connect them to GND as shown below.
DS4800
TX+
2
TX-
4
RX+
3
RX485
RX-
5
7
GND
GND
USER INTERFACE
+
-
Chassis
1
Figure 53 - RS485 Full-duplex Connections using Only TX Signals
Содержание BSR00034
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Страница 5: ...v INDEX 115...
Страница 27: ...RAPID CONFIGURATION 13 1 b Operating mode selection and definition c Digital Outputs configuration...
Страница 51: ...INSTALLATION 37 3 Figure 20 Positioning with U Shape Mounting Bracket Pitch Skew 0 15 45 45 15 alignment marks...
Страница 63: ...CBX ELECTRICAL CONNECTIONS 49 4 Figure 33 ID NET Network Connections with isolated power blocks...
Страница 64: ...DS4800 REFERENCE MANUAL 50 4 Figure 34 ID NET Network Connections with Common Power Branch Network...
Страница 65: ...CBX ELECTRICAL CONNECTIONS 51 4 Figure 35 ID NET Network Connections with Common Power Star Network...
Страница 78: ...DS4800 REFERENCE MANUAL 64 5 Figure 55 DS4800 Multidrop Connection to a Multiplexer...
Страница 81: ...25 PIN CABLE ELECTRICAL CONNECTIONS 67 5 Figure 57 ID NET Network Connections with isolated power blocks...
Страница 82: ...DS4800 REFERENCE MANUAL 68 5 Figure 58 ID NET Network Connections with Common Power Branch Network...
Страница 83: ...25 PIN CABLE ELECTRICAL CONNECTIONS 69 5 Figure 59 ID NET Network Connections with Common Power Star Network...
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