Appendix B Pluggable Transceiver Modules
1-GB Transceivers
Table B-5 GBIC Transceiver Module Cabling Specifications (continued)
GBIC Transceiver | Interface | Nominal | Network | Fiber Core | Modal Bandwidth | Cable Distance2 |
Model and Product | Connector | Wavelength | Cable Type | Size1 | (MHz km) | |
Number | | (nm) | | (micron) | | |
| | | | | | |
1000BASE-LX/LH | SC duplex | 1310 | MMF4 | 62.5 | 500 | 1804 ft (550 m) |
(WS-G5486) | | | | 50.0 | 400 | 1804 ft (550 m) |
| | | |
| | | | 50.0 | 500 | 1804 ft (550 m) |
| | | SMF | G.6525 | — | 6.2 mi (10 km) |
1000BASE-ZX6 | SC duplex | 1550 | SMF | G.6525 | — | 43.5 mi (70 km)8 |
(WS-G5487) | | | SMF7 | G.6525 | — | 62.1 mi (100 km) |
1.The numbers given for multimode fiber-optic (MMF) cable refer to the core diameter.
2.Cable distances are based on fiber loss. Additional factors, such as the number of splices and the optical quality of the fiber, can affect cabling distances.
3.Use with MMF only.
4.Refer to the product bulletin for the usage of mode conditioning patch cords in 1000BASE and 10GBASE Ethernet laser-based transmissions at this URL: http://www.cisco.com/en/US/prod/collateral/modules/ps5455/product_bulletin_c25-530836.html
5.ITU-T G.652 SMF as specified by the IEEE 802.3z standard.
6.Use with SMF only.
7.Dispersion-shifted single-mode fiber-optic cable.
8.The minimum link distance for ZX GBICs is 6.2 miles (10 km), when an 8-dB attenuator is installed at each end of the link. Without attenuators, the minimum link distance is 24.9 miles (40 km).
Table B-6lists the fiber loss budgets for the GBIC transceivers.
Table B-6 | Fiber Loss Budgets for the 1-GB GBIC Transceivers |
| | |
1-GB GBIC Transceiver | Transmit (dBm) | Receive (dBm) |
Product Number | | | |
| | | |
WS-G5484 | | –3 (maximum) | 0 (maximum) |
(1000BASE-SX) | –9.5 (minimum) | –17 (minimum) |
| | | |
WS-G5486 | | –3 (maximum) | –3 (maximum) |
(1000BASE-LX/LH) | –9.5 (minimum) | –19 (minimum) |
| | | | |
WS-G5487 | | 5 | (maximum) | –3 (maximum) |
(1000BASE-ZX) | 0 | (minimum) | –23 (minimum)1 |
1.The 1000BASE-ZX GBIC transceiver provides a minimum optical power budget of 23 dB. To determine the supported link distance, you need to measure your cable plant with an optical loss test set to verify that the optical loss of the cable plant (including connectors and splices) is less than or equal to this value. The optical measurement must be performed with a 1550 nanometer light source.
Catalyst 6500 Series Ethernet Modules Installation Guide
