The Megaplex 2104 model MP-2104/MN/48 modular integrated access multiplexer, is a 2U chassis with 5 module slots and no common logic or Main Link module, 48 VDC power supply, a 10BaseT management port, includes ringer.brbrThe flexible, modular MP-2100/2104 with a wide choice of I/O (user interface) modules was designed for applications ranging from small campus networks to multisite corporate networks or extensive carrier access solutions.brbrThe Megaplex 2100/2104 multiplexer family provides multiservice access for utility and transportation companies, to reduce the number of units needed to collect all the traffic, low speed, high speed, teleprotection, voice, teleconference, and more. The MP 2100/2104 can be used to keep the huge installed base by maintaining legacy and special services while enabling carrier network migration to NGN/PSN. It can be deployed at the carrier's point-of-presence, in the exchange, or at an organization's central office, as well as remote sites.