Johnson Controls NAE-S, Руководство по установке

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Important: Do not apply 24 VAC power to the
network engine before completing and checking
connections. Short circuits or improperly connected
wires may result in permanent damage to the
equipment.
Important: Use copper conductors only. Make
all wiring in accordance with local, national, and
regional regulations.
Important: The NAE-S is a low-voltage (<30 VAC)
device. Do not exceed the NAE-S electrical ratings.
Applying high voltage to the NAE-S may result
in permanent damage to the unit and void any
warranties.
Important: Do not remove the terminal block keys.
The terminal block plugs and the terminal sockets
are keyed to fit together in the correct configuration
only.
Important: Prevent any static electric discharge to
the NAE-S. Static electric discharge can damage the
NAE-S and void any warranties.
• Route the supply power wires and communication
cables at least 50 mm (2 in.) away from the vent slots in
the sides of the network engine housing.
• Provide slack in the wires and cables. Keep cables
routed neatly around the network engine to promote
good ventilation, LED visibility, and ease of service.
Note: Ensure that the building automation network
wiring meets the specifications, rules, and guidelines
in the Wiring Considerations and Guidelines for
Network Integrations section.
To wire the network engine, follow these steps:
1. Connect the Ethernet cable to the RJ-45, 8-pin
Ethernet port (Figure 2).
2. Connect the Building Automation System (BAS)
network cables to the appropriate ports. For N2 or
MS/TP networks, connect the 3-wire bus cable to one
of the removable 4-terminal plugs labeled FC A or FC
B (Figure 6).
Note: If an N2 Bus or MS/TP Bus is connected to the
network engine, you must set the network engine
EOL switches to the proper positions. See the Setting
the End-of-the-Line Switches section.
Figure 6: FC Bus Terminal Block and Wiring
Connections
3. Connect the black power plug from the encryption
card power supply to the 24 VDC power terminal on
the NAE-S (Figure 2).
4. Connect the 24 VAC supply power wires from the
transformer to the removable power terminal block
plug (Figure 7).
Figure 7: 24 VAC Supply Power Wiring
Keep in mind that:
• 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.
• The 24 VAC power should be connected to all network
devices so transformer phasing is uniform across the
devices. Powering network devices with uniform 24 VAC
supply power phasing reduces noise, interference, and
ground loop problems.
• The NAE-S network engine does not require an earth
ground connection.
NAE-S Installation Guide 4