Table of Contents
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VACON® RS485 and CAN Bus Option Boards
Installation Guide
A
B
A
Data A +
B
Data B -
C
Shield
D
VP
Illustration 22: Fail-safe Biasing in OPTE2
A
B
A
Data A +
B
Data B -
C
Shield
D
VP
Illustration 23: Termination Resistance in OPTE2
5.4.3 Setting the Termination Resistance
Install termination resistance near both ends of the RS485 segment. The typical termination resistance for RS485 is 120 Ω.
D
A
44 | Danfoss A/S © 2022.08
1
2
3
4
5
1
2
3
4
5
E
C
D
E
F
G
E
Plus
F
Minus
G
Data Ground
C
D
E
F
G
E
Plus
F
Minus
G
Data Ground
B
RS485-based Option Boards
C
D
AN338644703080en-0002 / DPD02156
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