Note: Depending on the size of your network,
you can use either a KNX Interface or Router as
a gateway. The Interface connects the network
engine to a single KNX line, while the Router
acts as both an Interface and a Line Coupler
over Ethernet to connect the network engine to
the network, not to a single device.
2. Connect an Ethernet cable from the building's
network jack to the RJ-45, 8-pin Ethernet port on
the network engine.
Figure 14: KNX/IP Interface Router
Table 7: KNX/IP Interface Router connection detail
Callout Description
1 To power supply
2 To KNX devices
3 To Ethernet network
3. For a single KNX line, wire from the red and black
terminals on the gateway to the devices. For
multiple KNX lines, wire from the red and black
terminals on each gateway to the devices on the
same KNX line.
Note: Specific cabling can vary depending
on the topology and site. See Wiring
considerations and guidelines for network
integrations.
4. Wire each KNX gateway to its own dedicated power
supply on the KNX line.
Connecting other third-party devices
About this task:
Network engine models support several other third-
party devices. Refer to the following documents for
information about how to connect the network engine to
these devices:
• C•CURE-victor: Network Engine Commissioning for
C•CURE-victor Integration Application Note (LIT-12013151)
• Simplex FACU: Network Engine Commissioning for
Simplex Fire System Integration (LIT-12013060)
• Cree SmartCast Lighting Control: Metasys System
Commissioning for Cree Digital Lighting Systems
Integration (LIT-12013152)
• Molex Lighting Control: Metasys System Commissioning
for Molex Digital Lighting Systems Integration
(LIT-12013153)
• Zettler Fire Panel: Network Engine Commissioning for
Zettler MX Speak 6.0 Vendor Integration (LIT-12013269)
• OPC UA Servers: Network Engine Commissioning for OPC
UA Client Vendor Integration (LIT-12013545)
Connecting the power source
About this task: Connect the 24 VAC supply power
wires from the transformer to the removable power
terminal connector on the network engine (Figure 15).
The connections are HOT and COM (common).
Do not apply power yet.
Figure 15: Supply power wiring (24 VAC transformer)
Table 8: Power supply wiring
Callout Description
1 NAE power terminal block
2 NAE power terminal block plug
3 Terminating wire for 24 VAC (orange)
4 Terminating wire for Common (brown)
5
Terminating wires from 24 VAC Class 2 power
transformer
Note: Power supply wire colors may be different on
transformers not manufactured by Johnson Controls.
Follow the transformer manufacturer’s instructions
and the project installation drawings.
Setup and adjustments
Installing the data protection battery
Important: Do not apply 24 VAC power to the
network engine before installing the data protection
battery.
To install the data protection battery:
1. Remove the battery from its packaging. Remove the
battery cover on the network engine to expose the
battery compartment (Figure 3).
2. Carefully plug the network engine battery connector
from the battery compartment into the connector on
the battery cable (Figure 16).
3. Place the battery into the compartment (Figure 16).
NAE55 Installation Guide 11
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