Cisco WS-G5484 Datenbogen
Data Sheet
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When shorter distances of single-mode fiber are used, it might be necessary to insert an in-line optical attenuator in
the link to avoid overloading the receiver:
●
A 5-dB or 10-dB inline optical attenuator should be inserted between the fiber-optic cable plant and the
receiving port on the Cisco 1000BASE-ZX GBIC at each end of the link whenever the fiber-optic cable span is
less than 15.5 miles (25 km)
Platform Support
Cisco GBICs are supported across a variety Cisco switches, routers, and optical transport devices. For more details,
see the document
Cisco Gigabit Ethernet Transceiver Modules Compatibility Matrix
.
Connectors and Cabling
●
Dual SC/PC connector (for optical GBIC modules)
●
RJ-45 connector (for 1000BASE-T GBIC)
Note:
For optical GBIC modules, only connections with patch cords with PC or UPC connectors are supported.
Patch cords with APC connectors are not supported. All cables and cable assemblies used must be compliant with
the standards specified in the standards section.
Note:
Optical patch cables need to be compliant with GR-326 (single-mode) or GR-1435 (multimode).
Technical Specifications
Table 1 provides cabling specifications for the Cisco GBICs that you install in the Gigabit Ethernet port. Note that all
Cisco GBICs have SC-type connectors, and the minimum cable distance for all GBICs listed (MMF and SMF) is 6.5
feet (2 m).
Table 1.
Cisco GBIC Port Cabling Specifications
GBIC
Wavelength (nm)
Fiber Type
Core Size (Micron)
Modal Bandwidth
(MHz/km)***
(MHz/km)***
Cable Distance
Cisco 1000BASE-SX
850
MMF
62.5
62.5
50.0
50.0
50.0
160
200
400
500
2000
722 ft (220 m)
902 ft (275 m)
1640 ft (500 m)
1804 ft (550 m)
3281 ft (1000 m)
Cisco 1000BASE-LX/LH
1310
MMF*
62.5
50.0
50.0
500
400
500
1804 ft (550 m)
1804 ft (550 m)
1804 ft (550 m)
SMF
9/10
N/A
6.2 miles (10 km)
Cisco 1000BASE-ZX
1550
SMF
9/10
N/A
43.4 to 62 miles (70 to
100 km)**
100 km)**
* Mode-conditioning patch cord is required over legacy MMF and should not be used over OM3.
** Cisco 1000BASE-ZX GBIC can reach up to 62 miles (100 km) by using dispersion shifted SMF or low-attenuation SMF; the
distance depends on fiber quality, number of splices, and connectors.
*** Specified at transmission wavelength.
** Cisco 1000BASE-ZX GBIC can reach up to 62 miles (100 km) by using dispersion shifted SMF or low-attenuation SMF; the
distance depends on fiber quality, number of splices, and connectors.
*** Specified at transmission wavelength.
Standards
●
Compatible with GBIC standard as specified in IEEE 802.3z
●
Compliant with GBIC Specification Revision 5.4
●
GR-20-CORE: Generic Requirements for Optical Fiber and Optical Fiber Cable
●
GR-326-CORE: Generic Requirements for Single-Mode Optical Connectors and Jumper Assemblies