Etherbus Hardware Manual
Page 16 of 23
Last Revised: 17-Sep-13
Red Lion
Controls
331 Ushers Road
Ballston Lake, NY 12019
USA
+1-518-877-5173
Fiber Wiring
Guidelines
The Etherbus industrial Ethernet PoE switch optionally has one 100 Mbps (100Base-FX)
multimode or singlemode fiber ports. The maximum segment length is up to 120 km or more
depending on the type of fiber optic transceiver installed in the switch. Refer to the technical
specifications for details. Or contact RED LION for the available fiber optic transceivers.
Each fiber optic port on the switch is comprised of a pair of SC or ST style connectors. For
each fiber port there is a transmit (TX) and receive (RX) signal. When making your fiber optic
connections, make sure that the transmit (TX) port of the switch connects to the receive (RX)
port of the other device, and the receive (RX) port of the switch connects to the transmit (TX)
port of the other device.
Use standard fiber optic wiring techniques (not covered by this manual) to make your
connections. The corresponding ACT/LNK LED will be ON solid when you have made a
proper connection. See images below for typical fiber optic port placement.
Duplex
Operation
The RJ45 ports will auto-sense for Full or Half duplex operation, while the fiber port is
configured for full duplex operation. Note: Fiber devices with half duplex settings should still
communicate with the switch. If otherwise then please contact RED LION.
Network
Device Check
These industrial Ethernet switches are capable of supporting 10/100BaseT on the RJ45
(copper) ports and 100BaseF on the fiber optic ports . Make sure you connect the appropriate
devices to each port.
Verifying
Connectivity
Af
ter all Ethernet and/or fiber connections are made, check the LED’s corresponding to the
ports that each of the devices are connected to. Ensure that for each port that is in use, the
LED is on or blinking. If a port LED is off, go back and check for connectivity problems
between that port and the network device connected.
Typical
SC Style
Connector
Typical
ST Style
Connector