Cisco Catalyst 5000 Series Installation And Configuration Note page 13

Figure 6 GBIC
Receiver Transmitter
Table 4 GBIC Types
GBIC Product Number
1000BaseSX WS-G5484
1000BaseLX/LH WS-G5486
1000BaseZX WS-G5487
Cisco 1000BaseLX/LH interfaces fully comply with the IEEE 802.3z 1000BaseLX standard.
Note
However, the 1000BaseLX/LH has a higher optical quality, allowing link distances of 10 km over
SMF versus the 5 km specified in the standard.
A maximum of 12 1000BaseZX GBICs can be installed in a switch chassis.
Note
The GBIC slides through an opening in the front of the Gigabit Ethernet module and mates with a
connector on the module. (See Figure 7.)
Figure 7 Installing a GBIC (WS-X5403 shown)
WS-X55 50
SUPE RVISO R ENGIN
E III G-SER IES
Plug
Use a SC-type single-mode (fiber) connector, shown in Figure 5, to connect the Gigabit Ethernet
module ports with the external network. Connect the Gigabit Ethernet interface cables to the
appropriate Ethernet network connector.
When using the LX/LH GBIC with 62.5-micron diameter MMF, you must install a
mode-conditioning patch cord (Cisco product number CAB-GELX-625 or equivalent) between the
GBIC and the MMF cable on both the transmit and receive ends of the link. The patch cord is
required for link distances greater than 984 feet (300 m). Refer to the Catalyst 5000 Series
Supervisor Engine Installation Guide for more information on patch cords.
Catalyst 5000 Series Supervisor Engine III G Installation and Configuration Note
LINK
LINK
PORT 1
PORT 2
Connecting Gigabit Ethernet Modules
13