Installing the NAE/NIE Technical Bulletin
5
NAE Ports
Power
The NAE requires 24 VAC power. The minimum input voltage for the
NAE to operate properly is 20 VAC, but a minimum of 22 VAC is
recommended to prevent nuisance power shutdown and startup
routines during brownout conditions. When the input voltage falls
below the 22 VAC, the NAE initiates a shutdown routine, storing
operations data in the nonvolatile memory for protection through the
power failure. Maximum power consumption is 50 VA.
Connect 24 VAC power to terminals 1 and 3 (see Figure 2). You can
remove line power by removing the power terminal block from the
NAE.
P
O
W
E
R
Wires from
Power Transformer
(AS-XFRxx0-1)
Orange Wire
(24V)
Brown Wire
(COM -)
power connect
H
O
T
C
O
M
NAE Power
Terminal Block
NAE Power
Terminal Block
Plug
+
N
C
_
Figure 2: Power Hookup
Note:
When you remove line power, the NAE is still powered by
the battery and it takes approximately 1 to 6 minutes for the NAE to
completely power down, depending on the size of the database. The
NAE unit is completely powered down when the POWER LED is off.
See
Wiring the NAE
in this document for more information on the
power connection.
Note:
In North America, use an AS-XFR100-1 or AS-XFR010-1
100 VA power transformer to provide adequate power. We do not
recommend that the transformer share its load with other devices.
Outside North America, use a safety-isolating transformer at the
appropriate rating. These transformers are robust units, which provide
proper operating conditions and limit noise problems.
