3Com 4200G Series, Getting Started Manual

Page: 27 / 90

SFP Operation 27
Use this transceiver to connect Gigabit Ethernet SFP ports on the
Switch directly to a single-mode fiber-optic cable.
■
1000BASE-T SFP transceiver
This transceiver uses Category 5 copper cabling with RJ-45 connectors
and supports segment lengths of up to 100 m (328 ft).
If the SFP transceiver is faulty, it will not operate within the Switch. See
“Solving Hardware Problems” on page 59 .
3Com recommends that you only use SFPs supplied by 3Com. If the SFP
transceiver is invalid it will not be recognized by the Switch.
Use the following sequence of steps to activate the SFP ports:
1 The SFP transceiver is keyed and there is only one way in which it can be
installed correctly. It is not necessary to power-down your Switch.
2 Hold the transceiver so that the connector is toward you and the product
label is visible. Ensure the wire release lever is closed (in the upright
position).
3 Gently slide the transceiver into the SFP port until it clicks. If the
transceiver does not click into place, remove it, turn it over and re-insert.
4 Remove the plastic protective cover if fitted.
Figure 9 Inserting an SFP Transceiver
5 Use and appropriate cable to connect the transceiver to a suitable device.
6 Check the LEDs on the front of the Switch to ensure that it is operating
correctly. Refer to “LEDs” on page 18 for more information.
Product
label
Suitable port
on host Switch
10014914_AB_Switch 4200G.book Page 27 Tuesday, October 2, 2007 12:13 PM