Johnson Controls MS-NAE55 Series Installation Instructions Manual page 6

If the American Power Conversion (APC®)
ProtectNet® model PNET1 Ethernet/token ring port
surge protector is necessary as described in the
Metasys System Extended Architecture Smoke Control
Wiring Technical Bulletin (LIT-1201753), connect the
PNET1 output to the NAE55 Ethernet port and connect
the external Ethernet cable to the PNET1 input.
Ground the PNET1 surge protector according to the
APC instructions.
Optional Internal Modem
MS-NAE55x1-x and MS-NIE55x1-x models have an
internal modem and a 6-pin modular jack labeled
MODEM. Connect a standard phone line plug and
cable to the to use the internal modem.
For information on commissioning an internal modem,
refer to the NAE Commissioning Guide (LIT-1201519).
Wiring the NAE55/NIE55
Mount the NAE55 securely before wiring it. Follow
these guidelines when wiring the NAE55:
IMPORTANT: Do not apply 24 VAC power to the
NAE55 before completing and checking all
connections. Short circuits or improperly connected
wires may result in permanent damage to the
equipment.
IMPORTANT: Do not apply 24 VAC power to the
NAE55 before installing the data protection battery.
See the Installing the Data Protection Battery
section in this document.
IMPORTANT: Use copper conductors only. Make
all wiring in accordance with local, national, and
regional regulations.
IMPORTANT: Do not exceed the NAE55 electrical
ratings. The NAE55 is a low-voltage (<30 VAC)
device. Do not apply high voltage to any termination
on the NAE55. Applying high voltage to the NAE55
may result in permanent damage to the NAE55 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 NAE55. Static electric discharge can damage
the NAE55 and void any warranties.
NAE55/NIE55 Installation Instructions
• Route the supply power wires and communication
cables at least 50 mm (2 in.) away from the vent
slots in the sides of the NAE55 housing.
• Provide slack in the wires and cables. Keep cables
routed neatly around the NAE55 to promote good
ventilation, Light-Emitting Diode (LED) visibility,
and ease of service.
Note: Make sure the building automation network
wiring meets the specifications, rules, and guidelines in
the Wiring Considerations and Guidelines for
Network Integrations section.
To wire the NAE55:
1. Connect the Ethernet cable to the RJ-45, 8-pin
Ethernet port shown in Figure 1.
2. Connect the Building Automation System (BAS)
network cables to the appropriate ports.
• For N2 or MS/TP networks, connect the three
bus wires to one of the removable 4-terminal
plugs labeled FC A or FC B (Figure 6).
N2 Applications =
MS/TP Applications = COM
Figure 6: FC Bus Terminal Block
and Wiring Connections
• For L W
ON ORKS
the wires from the LON network trunk to the
removable 3-terminal plug (Figure 7).
Note: If an N2 Bus or MS/TP Bus is connected to the
NAE55, you must set the NAE55 End-of-Line (EOL)
switches to the proper positions. See the Setting the
End-of-Line Switches section.
3. If using a modem, connect a telephone line to the
modem port or connect an external modem to the
USB A as necessary.
FC Bus
Terminal
Block
FC Bus
Terminal Block
Plug
REF N2- N2+
FC- FC+
compatible networks, connect
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