The Cisco Metro 1500 series can be expanded by adding more WCMs. It is recommend that you initially install the primary chassis and extension chassis A that holds the BSM to avoid service interruption while upgrading the unit to more than eight channels. Extension Chassis C Figure 2-7 shows the rear view of the primary chassis and extension chassis. Each chassis is delivered with one to eight WCMs, according to the configuration ordered. Each WCM provides the conversion of the local or remote channels to their respective wavelengths.
All modules are hot-swappable and can be repaired or upgraded while the other WCMs are in use.
WCMs are designed to support a wide range of data rates. The RSM is available as an option. The remote lines of each WCM are connected to the MUX and the DMX of the chassis. Each chassis of the Cisco Metro 1500 series can be mounted in a 19-inch cabinet or in open racks. Each chassis requires five rack spaces.