Ac Power Connection; Dc Power Connection - ZyXEL Communications MES-2110 User Manual

Chapter 3 Hardware Overview

3.2.1 AC Power Connection

Note: This is only for the AC model of the MES-2110.
Connect the female end of the power cord to the power socket of your MES-2110.
Connect the other end of the cord to a power outlet. Make sure that no objects
obstruct the airflow of the fans.

3.2.2 DC Power Connection

Note: This is only for the DC model of the MES-2110.
The MES-2110 uses a single ETB series terminal block plug with four pins which
allows you to connect up to two separate power supplies. If one power supply fails
the system can operate on the remaining power supply. Use two wires to connect
to a single terminal pair, one wire for the positive terminal and one wire for the
negative terminal.
Note: The current rating of the power wires must be greater than 20 Amps. The power
supply to which the MES-2110 connects must have a built-in circuit breaker or
switch to toggle the power.
Note: When installing the power wire, push it wire firmly into the terminal as deep as
possible and make sure that no exposed (bare) wire can be seen or touched.
An exposed wire from a DC power source can be dangerous. Use
extreme care when connecting a DC power source to the device.
To connect a power supply:
Use a screwdriver to loosen the terminal block captive screws.
1
Connect one end of a power wire to the MES-2110's RTN (return) pin and tighten
2
the captive screw.
Connect the other end of the power wire to the positive terminal on the power
3
supply.
Connect one end of a power wire to the MES-2110's -48V (input) pin and tighten
4
the captive screw.
Connect the other end of the power wire to the negative terminal on the power
5
supply.
Insert the terminal block plug in the MES-2110's terminal block header.
6
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MES-2110 User's Guide