Vicon AurorAcord, Instruction Manual

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XX091-01-01 Rev 902 AurorAcorD Installation
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5
AurorANet Configurations
When using AurorANet RS-485 protocol, you must establish which AurorANet devices are at the end of the
communications line and which devices are in the middle. You may use the Vicon-supplied RJ-45 termination
box labeled “AurorANet” in both cases. If you choose not to use the AurorANet termination box, jumpers must
be installed as discussed in the Reference chapter. Jumpers must be removed for both end-of-line and not
end-of-line conditions if you use the AurorANet termination box (note that jumpers are already removed at the
factory for com1, making it convenient to use com1 if factory jumper settings have been retained).
The following figure shows a typical AurorANet installation, with resistors removed from the AurorANet
termination boxes for all AurorAcorDs that are in the middle of the communications line. The box is used as
supplied (resistors intact) for the last AurorAcorD in the line. Jumpers must be set in the first A2K-KBD
Keyboard to define it as end-of-line, as discussed in Instruction Manual XX081.
AurorANet Termination Box Termination Box Schematic
Three resistors have been added to the
AurorANet termination box, as shown to
the left. The box will be modified when the
device is not end-of-line by removing the
resistors, and used as supplied for the end-
of-line device. The schematic shown to the
right is for your reference only and is not
required during installation.
Connect from DATA+ to
DATA+ on all AurorAcorDs.
Connect from DATA– to
DATA– on all AurorAcorDs.
In this example, jumpers
are removed from each
AurorAcorD (as discussed
in the Reference chapter).