Cabling and Specifications
2.dBm = decibels referenced to 1 milliwatt.
3.
4.This distance represents 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
Using CWDM GBICs with the 3-Port Gigabit Ethernet Line Card
The
Figure 34 CWDM GBIC (Yellow-Coded CWDM-GBIC-1550= Shown)
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1 | Color band on label | 4 | Transmit optical bore | 6 | Receive optical bore |
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2 | Alignment groove | 5 | Optical bore dust plug | 7 | Color dot |
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3Spring clip
The eight CWDM GBICs available for use with a Gigabit Ethernet line card come in eight wavelengths in a range from 1470 nm to 1610 nm. The color dot between the receive and transmit ports and the color band on the label of the Cisco CWDM GBIC identify the wavelength of the GBIC. Table 12 lists the CWDM GBICs and their associated color codes.
Table 12 Gigabit Ethernet CWDM GBIC Laser Optic Parameters
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| Longwave 1470 nm laser | Gray |
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| Longwave 1490 nm laser | Violet |
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| Longwave 1510 nm laser | Blue |
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| Longwave 1530 nm laser | Green |
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| Cisco XR 12000 Series Router Ethernet Line Card Installation |
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