Installation and Operation Manual
Page 83 of 156
[PVI-XXX.0-YY(-TL) - Rev:1.0]
11.7.2
Setting of the 120 ohm termination of RS485
Each PVI-XXX.0(-TL) leaves the factory without the 120ohm termination of the RS485
communication line already set disabled.
Figure 11-12 and Figure 11-13 illustrates the three mechanical configurations which show the
presence of a card inside every framework and the dip-switch relative to the termination.
The card is easily accessible by removing the front panel.
Chapter §10.2.3
If a daisy-chain connection is used (Figure 8-1 to Figure 8-4), it is important that all racks,
except the last one, must have the termination disabled.
PVI-55.0(-TL)
PVI-110.0(-TL)
ON
S1
S1
120Ω
ON
120Ω
OFF
A
OFF
S2
S3
S1
OFF
ON
S7
S4
S5
S6
A
Figure 11-12: Switch position of the 120 ohm termination
Содержание Aurora PVI-110.0-YY
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