100Basefx Ethernet Port Connection; Redundant Power Inputs; Alarm Contact - Weidmuller IE-SW-VL16-16TX Hardware Installation Manual

100BaseFX Ethernet Port Connection

The concept behind the SC/ST port and cable is very straightforward. Suppose
you are connecting devices I and II. Contrary to electrical signals, optical
signals do not require a circuit in order to transmit data. Consequently, one of
the optical lines is used to transmit data from device I to device II, and the
other optical line is used transmit data from device II to device I, for
full-duplex transmission.
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.
SC-Port Pinouts
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 the switch power needs.

Alarm Contact

The Ethernet 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 could 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) Ethernet Switch 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.
ST-Port Pinouts
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