Siemens EF 83H Series Manuel d'utilisateur Page 49

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Connecting the Network
3-11
SIMATIC 505 PROFIBUS-FMS CP User Manual
Figure 3-7
shows the schematic for PROFIBUS connectors designed to
handle all baud rates, from 9600 baud to 12 Mbaud.
Pin 6
(BIAS SUPPLY +5V)
Pin 5
(BIAS SUPPLY GND)
Pin 3
(TX/RX+)
Pin 8
(TX/RX–)
Termination Resistor
, 220 ohm, 1/8 W
, 5%
Pins
1, 2, 4, 7, and 9 are not connected.
Bias Resistor
, 390 ohm, 1/8 W
, 5%
Bias Resistor
, 390 ohm, 1/8 W
, 5%
110 nH
110 nH
110 nH
110 nH
Internal
Connection B
Internal Connection B
Internal Connection A
Internal Connection A
Figure 3-7 9600
baud to 12 Mbaud Connector Schematic
NOTE:
Connector schematics and mechanical features are subject to change
without notice. Check with your local Siemens distributor for the latest
version.
PROFIBUS Connector
Schematics
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