New coarse wavelength-division multiplexing (CWDM) optical transceiver modules come in the high-density small form-factor pluggable (SFP) packages. The transceivers cost-effectively increase bandwidth in existing Sonet/SDH systems without adding new fiber. They're designed for Sonet/SDH service at OC-48 and STM-16 for speeds up to 2.67 Gbits/s to accommodate forward error correction (FEC). The distributed-feedback lasers are available in eight wavelengths, including 1470, 1490, 1510, 1530, 1550, 1570, 1590, and 1610 nm. An Avalanche-photodiode detector allows for transmission distances up to 80 km. The SFP CWDM modules also support the SFF 8472 Digital Diagnostic Monitor. Units are available now. Price depends upon quantity.
Stratos International Inc.www.stratoslightwave.com; (800) 323-6858
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