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The DM880 is a New Generation SDH multiplexer with multiservice functionalities. Developed for high capacity access, transport and cross connection applications. The cross connection matrix modules have up to 80G capacity. Totally modular, the chassis has 12 slots for interface cards, 2 slots for housekeeping cards and an integrated fan module.

MPU:

• Cross connection in VC-12, VC-3 and VC-4
• Allows redundant operation
• The DM800-MPU622 is able to cross connect timeslots of 64kbit/s

Slots:

• 12 slots for E1, E3/T3, Ethernet and SDH interface cards
• 2 slots for V.11, RS232, housekeeping and service channel interface cards

Synchronism:

• Internal clock
• 2048kHz external clock input available in one of the MPU’s connectors
• Recovered clock from SDH or E1 interfaces

Power Supply:

• -48 to -60VDC input
• All interface cards are equipped with redundant power supply circuit