Installation guide

4-3
Catalyst 2984G, 2948G-GE-TX, and 2980G Switch Hardware Installation Guide
78-6286-04
Chapter 4 Configuring the Gigabit Ethernet Ports
Installing, Removing, and Maintaining GBICs
Note Cisco 1000BASE-LX/LH interfaces fully comply with the IEEE 802.3z
1000BASE-LX standard. However, their higher optical quality allows them to
reach 10 kilometers over single-mode fiber (SMF) versus the 5 kilometers
specified in the standard.
Other GBIC media types may be supported as additional technology becomes
available.
Note Because of interoperability issues, Cisco does not support GBICs purchased from
third-party vendors.
Port Cabling Specifications
Table 4-2 provides cabling specifications for the GBICs. The minimum cable
distance for all GBICs listed (MMF [multimode fiber] and SMF) is 6.5 feet (2
meters).
Table 4-1 Supported GBIC modules
GBIC Type Model Number
Fiber-optic 1000BASE-SX WS-G5484=
Fiber-optic 1000BASE-LX/LH WS-G5486=
Fiber-optic 1000BASE-ZX WS-G5487=
Copper 1000BASE-TX GBIC WS-G5483=
Coarse Wave Division Multiplexing (CWDM)
fiber-optic 1000BASE-X GBIC
CWDM-GBIC-1470=
CWDM-GBIC-1490=
CWDM-GBIC-1510=
CWDM-GBIC-1530=
CWDM-GBIC-1550=
CWDM-GBIC-1570=
CWDM-GBIC-1590=
CWDM-GBIC-1610=