The AT-MCR12 is Allied Telesis'' new media converter rackmount chassis. This rackmountable unit supports up to 12 Allied Telesis' media converters. This allows network managers to have the flexibility to use Allied Telesis'' MC1x family (10mbps) or MC10x family (100mbps) in the same rackmountable chassis. The chassis is powered by a single internal universal power supply, eliminating the need for multiple power connections. Allied Telesis' also offers an optional hot swappable power supply to eliminate down time on the network. The unit saves space in the wiring closet and minimizes the number of power connections required. The single unit media converters can also be removed from the AT- CR12 and deployed individually in order to accommodate network change.

Whether using one or two power supplies, power is equally distributed between all media converters. This is accomplished by incorporating a backplane with 12 different power entry modules integrated with the printed circuit board. The chassis is designed with a simple mounting system. Each individual media converter is lugged into the back plane and secured with the included mounting rail. The rackmount chassis has two status LEDs on the front panel indicating power. The top LED is titled PWR A and the bottom PWR B. The back panel has one LED for power. When a redundant power supply is installed, a second LED is visible.