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All you need to remember is to connect the Tx (transmit) port of device I
to the Rx (receive) port of device II, and the Rx (receive) port of device I
to the Tx (transmit) port of device II. If you make your own cable, we
suggest labeling the two sides of the same line with the same letter
(A-to-A and B-to-B, as shown below, or A1-to-A2 and B1-to-B2).
SC-Port Pinouts
SC-Port to SC-Port Cable Wiring
ST-Port Pinouts
ST-Port to ST-Port Cable Wiring
ATTENTION
This is a Class 1 Laser/LED product. To avoid causing serious
damage to your eyes, do not stare directly into the Laser Beam.
Redundant Power Inputs
Both power inputs can be connected simultaneously to live DC power
sources. If one power source fails, the other live source acts as a backup,
and automatically supplies all of EDS-316’s power needs.
Alarm Contact
Moxa EtherDevice Switch has one Alarm Contact located on the top panel.
For detailed instructions on how to connect the Alarm Contact power
wires to the two middle contacts of the 6-contact terminal block
connector, see the Wiring the Alarm Contact section on page 7. A typical
scenario would be to connect the Fault circuit to a warning light located in
the control room. The light can be set up to switch on when a fault is
detected.
The Alarm Contact has two terminals that form a Fault circuit for
connecting to an alarm system. The two wires attached to the Fault
contacts form an open circuit when (1) EDS has lost power from one of
the DC power inputs, or (2) The PORT ALARM DIP Switch for one of the
ports is set to ON, but the port is not connected properly.
If neither of these two conditions occurs, the Fault circuit will be closed.
