Siemens - Systeeminterface bussysteem - 6GK5991-2AH00-8AA0

6GK5991-2AH00-8AA0 MEDIA MODULE MM991-2 (BFOC)

SCALANCE X accessory; Media module MM991-2P; 2x 100 Mbit/s; SC RJ POF/ PCF ports; optical; POF up to max. 50 m, PCF up to max. 100 m. SCALANCEMM991-2P (SC RJ)Semi-modular and fully modular Layer 2 switches can be flexibly fitted with 2-port media modules. Using media modules enables: � Extending the network by plugging additional media modules into unused media module slots at the switch at a later time � Changing cabling technology, e.g. conversion from copper to fiber-optic cables or from multi-mode to single-mode FOC, � Bridging longer cable lengths or using existing 2-wire cables (variable distance).Unlimited flexibility during network expansions (e.g. more terminal devices) or conversion (e.g. switching from copper to fiber-optic cables) through modular construction using media modules. Reduction of storage and maintenance costs by focusing on only a few basic unit variants.