MCR-MGT- Management Module for the MCR chassis. 10/100/1000 ethernet RJ45. Port Console RJ45.

MCR-ACPWR- Redundant AC power supply for MCR1900-AC, UK Power Cord

MCR-ACPWR- Redundant AC power supply for MCR1900-AC, EU Power Cord

MCR-DCPWR - Redundant 48vDC power supply for MCR1900-DC

MCR-FPL - Face plate for empty slots on MCR Chassis

MCR-RMK23 - One set of rack mount brackets for 23 inch racks

Mode Conditioning Adapter- Gigabit. IEEE 802.3z-compliant, single-mode fiber permanently coupled off-center to a50-micron multimode optical fiber, duplex SC connectors

Mode Conditioning Adapter- Gigabit. IEEE 802.3z-compliant, single-mode fiber permanently coupled off-center to a62.5-micron multimode optical fiber, duplex SC connectors

Standalone media converter wall / rack mount bracket