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INSTALLATION AND WIRING
BDS0031 rev 10
NEXUS-3 Series
©ABB 2021 All Rights Reserved.
Subject to change without notice
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INSTALLATION INSTRUCTIONS
Front Side
Bottom Top
Warning
:
NEXUS-3
can be
powered by a 24 V DC
supply only.
The device will be damaged
if connected to a 24 V AC
power source.
Note
:
NEXUS-3
requires
ASPECT
3.04.02 or
later and cannot be downgraded to
any version prior to this release.
1) Remove the NEXUS-3 from its packaging, and mount it as describe in
Mounting Instruction overleaf
2) Attach the supplied
DB9-to-screw-terminal adapters
to the two COM ports, making
sure that the DB9 connections
are secured with the attached
screws.
Port 2 Port 1
3) Connect an Ethernet cable to
the
Primary
Ethernet port
Pr
im
ar
y
Re
co
ve
ry
N
ot
U
se
d
4) Attach 24 V DC to the Power
Input
The cable from the supplied PSU
to the NEXUS-3 device should be
min 0.5 mm² cross-section (20
AWG), with max length 3 m.
