Connecting The Lx Transceiver To Mmf - 3Com 3C94024 - CoreBuilder 9400 1000SX Switch Getting Started Manual

24 C 3: C C
HAPTER ABLING
Figure 8 Cabling the GBIC Transceiver
0BASE TX
TUS PACKET
CONSOLE
1000BASE (GBIC)
14 15
1000BASE (GBIC)
20 21
Fiber optic
network cable
Attach the other end of the network fiber-optic cable
6
to the network device that you want to connect.
Repeat steps 1 through 6 for additional GBIC ports.
7
B 9400 P
ORE UILDER ORTS
STATUS
green = enabled, link OK
flashing green = disabled, link OK
FAULT off = link fail
POWER
PCKT
STAT
16 17 18
PCKT
STAT
22 23 24
GBIC
transceiver
Duplex
SC connector

Connecting the LX Transceiver to MMF

The LX transceiver supports a connection to
multimode fiber using a conditioned launch cable.
The conditioned launch cable consists of an offset
mechanism on the transmit side of the cable that
aligns the single-mode laser launch away from the
center of the multimode fiber core, creating a
transmission signal similar to typical multimode
light-emitting-diode (LED) launches. This offset allows
the transmission of LX signals over multimode fiber
cable.
You need a conditioned launch cable to complete the
following procedure. To ensure optimal compatibility,
performance, and regulatory compliance, use only
conditioned launch cables that 3Com supports. For a
list of currently supported launch cables, visit this
3Com Web site:
http://www.3Com.com/gigabit_ethernet/gbics
To cable a GBIC port to multimode fiber using an LX
transceiver:
Read and follow the "Fiber Safety Precautions" on
1
page 19 and the Caution at the beginning of
"Cabling Gigabit Ethernet Ports" earlier in this
chapter.
Insert a GBIC LX transceiver into a GBIC port until it
2
clicks into place, as shown in Figure 6.
If you haven't already done so, remove the SC
3
connector cover from the transceiver, as shown in
Figure 7.