Em4710Bd-Ac (Alternating Current Power Module); Em-7608-Dc (Direct Current Power Module); Power Module Front Panel; Power Distribution Box - Accton Technology ES4710BD User Manual

EES4710BD 10 Slots L2/L3/L4 Chassis Switch

1.4.3.1 EM4710BD-AC (Alternating Current Power Module)

When powered by AC inputs, the AC power module EM4710BD-AC and corresponding AC distribution
box should be used in the ES4710BD. The input voltage of the EM4710BD-AC is 110V/220 VAC,
with ranges between 90 ~ 264 VAC and frequency between 50 ~ 60 Hz, the maximum output power
is 600W.

1.4.3.2 EM-7608-DC (Direct Current Power Module)

When powered by DC inputs, the DC power module EM-7608-DC and corresponding DC
distribution box should be used in ES4710BD. The input voltage of EM-7608-DC is -48 VDC, and
allows ranges from -36 V to 72 VDC. The maximum output power is 600W.

1.4.3.3 Power module Front Panel

There are vents (with dust gauzes), 2 fastening screws and handle for replacing the modules on the
front panels of EM4710BD-AC and EM-7608-DC.
The Front Panel view is shown below:
Fig 1-8 EM4710BD-AC Front Panel view

1.4.4 Power Distribution Box

There is a dedicated AC distribution box or DC distribution box in the lower section of ES4710BD
backplane, distributing power supply for the corresponding AC or DC power module. A grounding
post is provided on the chassis on both sides of the distribution box for switch grounding. There is
also an extraction handle, which is intended for the installation and removal of the distribution box
only. Never lift or move the switch with this handle!
Enterprise network users usually require equipment to have 220 VAC input, the AC power modules
and AC distribution box can satisfy this application. Three 220V/110 VAC power input sockets are
provided on the panel of the ES4710BD AC distribution box. Input AC power will first pass through
protective circuits, such as the AC filter, lightning protection tube, and then provide power for the
three AC power modules. The other modules and fan trays are powered only after the DC output
from the power modules are equalized and coupled. A wiring clip is provided above each 220V/110
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