Cabling and Specifications
Table 10 Ethernet GBIC Laser Optic Parameters (continued)
GBIC Module/ |
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| Distance1 |
Connector | Type | Wavelength | Fiber Type | |
Extended distance | 1550 nm | 10/9 micron SMF | 43.5 miles (70 km) | |
SC connector |
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| 2 | 62 miles (100 km) | |
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| 8 micron SMF | |
Longwave | SMF 10/9 micron | 62 miles (100 km) | ||
xxx=3 |
| nm4 |
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1.These distances represent best case conditions, depending on fiber quality, dispersion, and losses due to connectors, nodes, or splices. In the case of the CWDM GBICs, CWDM OADM modules or mux/demux modules are needed for these GBICs to work in any topology other than a
2.
3.Supported by
4.The wavelengths of the CWDM GBICs are based on a
Note
Note
Note
Use only GBIC modules supplied by Cisco with your Ethernet line card. They have been tested by Cisco Engineering and, in some cases, a
The maximum distance for any fiber span in an optical network is determined by the fiber type and quality, as well as the span length, number of splices, and number of optical nodes in the path. If your network design requires the signal to travel close to the theoretical maximum distance (as listed in Table 11), you must calculate the optical power budget and receive (RX) sensitivity for the entire network topology to ensure it is within the specifications of the GBIC option in use.
Actual power budget calculations involve a number of variables specific to network topology and design, and are therefore outside the scope of this publication.
Table 11 Optical Parameter Values for Calculating Link Power Budget
| Transmit | Receive | Receive | Link | Maximum Distance1 |
GBIC | Power | Power | Sensitivity | Budget | |
7.5 dB | 1,804 feet (550 m) | ||||
8 dB | 6.2 miles (10 km) | ||||
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0 to +5 dBm | 23 dB | 43.5 to 62 miles (70 to | |||
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| 100 km3) |
+1 to +5 dBm | 32 dB | 62 miles (100 km)4 |
1.These distances represent best case conditions, depending on fiber quality, dispersion, and losses due to connectors, nodes, or splices.
Cisco XR 12000 Series Router Ethernet Line Card Installation
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