Cisco DS-CWDMCHASSIS= 1U network equipment chassis

2-slot Chassis for Cisco OADM and Multiplexer/Demultiplexer, Spare The Cisco CWDM OADMs are passive devices that provide the capability to multiplex and demultiplex, or add and drop wavelengths from multiple fibers onto one fiber. The OADM connectors are interfaced with color-matching Cisco CWDM SFPs on the equipment side. All modules are the same size. The Cisco CWDM chassis enables rack mounting for up to two Cisco CWDM OADMs in a single rack unit.