User's Manual

ES2440 Hardware Guide: Installation
5
WARNING: If the
Mesh Point con-
nects to outside-mount-
ed antennas, failure to
provide a low resistive
earth ground can result
in migration of voltage
from lightning or line
surges onto the premis-
es wiring, which can
cause electric shock
and/or fire within the
building or structure.
 Grounding: Ground the ES2440 by connecting a ground
wire to the grounding stud located on the left rear corner of
the chassis (refer to Figure 2.1).
 Radio Frequency: The Mesh Point’s internal radios conform
to the FCC’s safety standard for human exposure to RF
electromagnetic energy, provided that you follow these
guidelines:
 Do not touch or move the antennas while the unit is
transmitting or receiving.
 To safeguard Mesh Point transmitting circuitry, relocate
the Mesh Point and its antennas only when the Mesh
Point is powered off.
 When the Mesh Point is transmitting, do not hold it so
that the antenna is very close to or touching any
exposed parts of the body, especially the face or eyes.
 Antennas must be installed to provide a separation of at
least 20 cm (7.9") from all persons and any co-located
antenna or transmitter.
 Regarding use in specific environments: · Do not
operate near unshielded blasting caps or in an
explosive environment. · Limit use in a hazardous
location to the constraints imposed by the location’s
safety director. · Abide by the rules of the Federal
Aviation Administration for the use of wireless devices
on airplanes. · Restrict the use of wireless devices in
hospitals to the limits set forth by each hospital.
2.1.2 Powering Options
CAUTION: Never
plug the ES2440
into a PoE adapter other
than the adapter includ-
ed in the shipment (or a
replacement obtained
from Fortress). Using the
wrong power adapter
can damage the ES2440.
The ES2440 Mesh Point can be powered by 802.3at PoE+
(Power over Ethernet Plus), with the adapter/injector and
power cord included in each shipment, or by 10–30 VDC (volts
direct current), with a user-provided connector/cord assembly.
The external DC power option is not intended to be a
redundant back-up supply to PoE (or vice versa). The ES2440
will automatically disconnect PoE if external DC power is
applied and will only reconnect PoE when DC power is
removed. When either PoE or external DC are removed, the
ES2440 will reboot.
NOTE: The ES2440
will work with any
active 802.3at or passive
60W midspan device but
will not be able to inter-
operate directly to 25W
endspan switches with-
out the use of a midspan
power injector.
To power the ES2440 over Ethernet
Plug the included PoE+ adapter/injector into a properly rated
AC outlet using the power cord provided, and connect the
adapter to the ES2440’s
Ethernet1/WAN/POE port (refer to
Figure 2.1) with a standard Cat5 Ethernet cable.
To power the ES2440 with external DC
To power the ES2440 via the front-panel the 2-pin DC Power
inlet, you must first obtain a suitable mating cable-end socket
connector and attach it according to the pin-outs described in
Section 4.3 to a cable of the correct length and gauge for your
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