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Unmanaged Switch User Manual
Page 8 of 13
Last Revised: 11-Jul-06
Amphenol
– 948, Promenade de l‘Arve – B.P. 29 – 74311 THYEZ Cedex – France - +33(0)4.50.89.28.00 – www.rjswitch.com
Pin
#
MDI-X
Port
MDI Port
(typical for
uplink)
Auto-
MDI/
MDI-X
Ethernet
Device
Port
1 TX+
RX+ TX/RX+ RX+
2 TX-
RX- TX/RX- RX-
3 RX+
TX+ RX/TX+ TX+
Ethernet
Connector
Pin-outs
6 RX-
TX- RX/TX- TX-
The maximum cable length for 10/100BaseT(x) is typically 100 meters (328 ft.).
From
To
Maximum
Distance
Switch
Switch
or Hub
100 meters (328 feet)
Cable Distance
Switch
or Hub
PLC, Ethernet I/O, PC, etc.
100 meters (328 feet)
Note:
Hubs and switches are different devices. Hubs simply broadcast all messages
out all ports. switches intelligently route messages only out the appropriate port
Ethernet
Fiber Wiring
Guidelines
These switches may have one or two pair of fiber ports of the type multimode or
singlemode. Multimode ports support a maximum segment length of 2 km. Singlemode
ports support a maximum segment length of 15 km, 40 km (long haul models) or even
more (contact Amphenol.)
Each fiber optic port on the switch is comprised of a pair of SC or ST connectors, which
are labeled with “RX” and “TX” on the switch. 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.
The ACT/LNK LED will be ON solid when you have made a proper connection.
Full or Half
Duplex
Operation
The RJ45 ports will auto-sense for Full or Half duplex operation. No user configuration
is necessary. Each fiber optic port has a movable slide-switch or jumper that allows you
to select the mode. The metal cover needs to be removed to access the movable jumper.
See diagram below.
Note: You must cycle power to the switch after changing the slide-
switch or jumper position.
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