User's Manual

ES520 Hardware Guide: Installation
9
power an indoor Mesh Point or an outdoor, weatherized Mesh
Point.
2.1.3.1 ES520 Version 1
As described in Section 2.3, when an ES520 version 1 Mesh
Point is weatherized for outdoor installation, the only power
input available for use is the WAN port PoE input.
When the an ES520 version 1 Mesh Point is installed indoors,
you can connect either or both power inputs:
 barrel-style 48V DC input directly connected to the AC-to-
DC (70 Watt) power adapter included with the Mesh Point
 WAN port PoE input connected to the remote PoE midspan
adapter (or equivalent) included with the Mesh Point, or to
a 802.11af PoE endspan source
When you connect both sources, they provide a measure of
redundancy.
As the higher voltage of the two supplies, the barrel-style input
connected directly to the 70 Watt power adapter is primary,
backed up by the WAN port PoE supply. If the primary power
supply is lost, a PoE midspan device can take over without
interruption. A PoE endspan device may allow a lapse before
sensing that the Mesh Point is powered down and resupplying
it via the WAN port. When the 48V DC power input is again
receiving power, it will again become primary.
2.1.3.2 ES520 Version 2
Two sets of connections comprise the weathertight, 4-pin,
multi-range DC input: the left pair of pins is for 12/24V power
(7–30 range); the right pair of pins is for 48V power (36V–60V
range).
In order to use the 4-pin, multi-range DC input, you must obtain
a suitable mating cable-end socket connector and attach it
according to the pin-outs described in Section 4.3 to a cable
composed of 18 gauge (minimum) to 16 gauge (maximum)
wire.
7–30 Volt Powering
If you use the Mesh Point’s 4-pin multi-range DC input to
supply 7-30V (12V/24V) power to the Mesh Point, it will be the
Mesh Point’s sole source of power. All 48V DC power inputs
are disabled.
Purchase a weathertight mating connector or molded cable
end assembly from Fortress Technologies or Switchcraft®
(Mini-Con-X® series part #
382-4SG-3DC).