Cisco Systems introduces its second generation of coarse wavelength-division multiplexing (CWDM) passive devices boasting increased functions and improved performance to extend the reach of CWDM metropolitan networks (Figure 1).
Figure 1. Cisco WDM Series
PRODUCT OVERVIEW
The Cisco WDM series comprises a set of 11 new CWDM passive modules mechanically compatible with the Cisco CWDM chassis (part number CWDM-CHASSIS-2=) and a 1300/1550 nm splitter cable. Compared to the previous 1000BASE-CWDM series of passive filters, this new set of devices sports a greatly reduced insertion loss (up to 50 percent), "power-tap" ports to allow live monitoring and troubleshooting of the CWDM signals, as well as the mixing of 1300-nm CWDM signals on the same fiber infrastructures.
The Cisco WDM series of passive devices are replacements for all the product numbers of the Cisco 1000BASE-CWDM series except for the modules listed in Table 1.
Table 1. Cisco 1000BASE-CWDM Products Not Replaced by the New WDM Series of Passive Devices
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