Passive DWDM, Cassette Demux, 4 channel, Starting at channel 28, 100GHz spacing, 900um 1m fiber, no connectors w/ Pass & upgrade port

L-com's PDWMD-04128-19NF is a DWDM passive filter with 4 channels. L-com's PDWMD-04128-19NF is a cassette demultiplexer module starting at channel 28. L-com's PDWMD-04128-19NF has 20nm spacing with 900um fiber lead which is 1m long and has no connector. L-com's PDWMD-04128-19NF has a pass and upgrade port, the pass port is designed to add non-DWDM wavelengths to the existing network. The upgrade port is designed for adding remaining DWDM channels in the 1530-1565nm range (C-band). These ports are used by connecting the common (or line) port from another multiplexer utilizing different wavelengths. The addition of these channels allows for network expansion without interruption of existing connectivity, or additional fiber usage. L-com's PDWMD-04128-19NF is one of thousands of fiber optic products available in-stock and ready to ship today.