User Manual

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ATTENTION
This product is intended to be mounted to a well
-grounded
mounting surface, such as a metal panel.
Wiring the Alarm Contact
The Alarm Contact consists of the two middle contacts of the terminal
block on EDS’s top panel. You may refer to the next section for detailed
instructions on how to connect the wires to the terminal block
connector, and how to attach the terminal block connector to the
terminal block receptor. In this section, we explain the meaning of the
two contacts used to connect the Alarm Contact.
FAULT: The two middle contacts of the 6-
contact
terminal block connector are used to
detect both power faults and port faults. The
two wires attached to the Fault contacts form
a
n open circuit when:
1. The EDS has lost power from one of the
DC power inputs.
OR
2. One of the ports for which the
corresponding PORT ALARM DIP Switch
is set to ON is not properly connected.
If
neither of these two conditions is satisfied,
the Fault circuit will be closed.
Wiring the Redundant Power Inputs
The top two contacts and the bottom two contacts of the 6-contact
terminal block connector on the EDS’s top panel are used for the EDS’s
two DC inputs. Top and front views of one of the terminal block
connectors are shown here.
STEP 1:
Insert the negative/positive DC wires into the
V
-/V+ terminals.
STEP 2:
To keep the DC wires from pulling
loose, use
a small flat
-blade screwdriver to tighten the
wire
-clamp screws on the front of the
terminal block connector.
STEP 3:
Insert the plastic terminal block connector
prongs into the terminal bl
ock receptor,
which is
located on the EDS’s top panel.
ATTENTION
Before connecting
the EDS to the DC power inputs, make sure
the DC power source voltage is stable.