Note:
The wall mount feet are designed to make
mounting easier. When the NAE55 is wall
mounted in the BEST (horizontal) orientation,
you can hang the NAE55 on the screws with
the upper two mount feet.
5. Insert the screws into the lower two wall mount feet
and holes and carefully tighten all of the screws.
Important:
Do not overtighten the mounting screws.
Overtightening the screws can crack the
NAE55 wall mount feet or housing.
DIN Rail Mount Applications
To mount the NAE55 on DIN rails:
1. Mount two DIN rails horizontally, so they are 125 mm
(4.9 in.) apart on centers (
).
2. Snap the DIN clips on the bottom of the NAE55 to the
outward position.
3. Hang the NAE55 on the DIN rail hooks on the back
of the NAE55.
Press the DIN clips back into position to secure the unit
on the DIN rails.
Figure 4: Required Orientations for NAE55 Wall Mount
Applications
To remove the NAE55 from the DIN rails:
1. Snap the DIN clips on the bottom of the NAE55 to the
outward position.
2. Lift the NAE55 off the DIN rails.
Enclosure Mount
To mount the NAE55 in an enclosure:
1. Mount the enclosure per the manufacturer’s
instructions.
2. Mount the NAE55 in the enclosure following the
guidelines in the
and
sections of this document.
Wiring
Power Supply, Network, and
Communication Connections
See
for the location of the power supply terminal,
network communication terminals, Ethernet jack, and
modem jack.
Power Supply
Important:
Install the data protection battery before
applying 24 VAC power to the NAE55. See
the
Installing the Data Protection Battery
section.
In North America, use a Class 2, 24 VAC power supply
with a 50 VA minimum output. Outside North America,
use a 24 VAC Safety Extra-Low Voltage (SELV)
transformer at the appropriate rating. The minimum input
voltage for the NAE55 to operate properly is 20 VAC.
See the
section.
Use a dedicated power supply to the NAE55 only. Do not
connect any other loads to the power supply. Additional
loads may cause noise interference.
FC Bus Terminal Block
The two Field Controllers (FCs) Bus connections on the
MS-NAE55xx-x models are 4-pin removable, keyed
terminal blocks labeled
FC A
and
FC B
.
Note:
MS-NIE55xx-x models (NIE55s) do not have FC
Bus terminal blocks or L
ON
W
ORKS
®
network
terminal blocks.
The FC bus connections are optically isolated RS-485
ports with keyed 4-position terminal blocks that
communicate at 9.6k, 19.2k, 38.4k, or 76.8k baud. Use
an FC Bus port to integrate an N2 network or a BACnet
®
Master-Slave/Token-Passing (MS/TP) FC Bus trunk into
the Metasys system.
Note:
N2 and BACnet MS/TP Buses have different
protocols and network requirements. Do not
connect N2 and MS/TP devices to the same FC
Bus port.
The Shield (SHD) connections on the FC terminal blocks
are not connected to any earth ground connection. The
FC A and FC B terminal blocks are not interchangeable.
L
ON
W
ORKS
Network Terminal Block
The L
ON
W
ORKS
TP/FT-10 network connection on the
MS-NAE552x-2 models (only) is a 3-wire removable,
keyed terminal block. The SHD connection on the
L
ON
W
ORKS
network terminal block is an isolated terminal
and is not connected in the NAE552x. Use the L
ON
W
ORKS
terminal block to connect L
ON
W
ORKS
networks to the
NAE552x.
4
NAE55/NIE55 Installation Instructions
