HP JG221A Installation Manual page 40

Figure 44 Appearance of an LC connector
To connect your switch to the network through optical fibers:
Remove the dust cover of the optical fiber connector, and clean the end of the optical fiber.
1.
Take off the dust plug of the SFP transceiver module, plug one end of the optical fiber into the
2.
transceiver module in the switch, and plug the other end into the transceiver module in the access
device. See Figure
Check that the LEDs of the optical interfaces are normal.
3.
WARNING!
To avoid injury to your eyes, do not stare at the optical interfaces and optical fiber connectors when
connecting optical fibers.
Figure 45 Use the LC optical fiber connector to connect a transceiver module
LC plug
IMPORTANT:
 Each SFP port is a member port of a combo interface. After connecting the switch to the network through
the SFP port, you must use the combo enable fiber command to activate the SFP port.
After connecting the switch to the network, you can use the ping or tracert command to check the

interoperability between the switch and the network. For more information, see
Series Command References
If the port status LED on the switch flashes after you connect the switch to the network, and the switch

does not respond to your commands, the switch may be sending or receiving broadcasts. In this case,
disconnect the switch to the network, re-configure the switch, and connect the switch to the network
again.
45.
SFP module
.
36
HP A3100 v2 Switch