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OCR: USING IMA TO ACCESS THE CARRIER'S ATM SWITCH Chrifer network Customer Customel premises premises 6Mbit"" IT-1 6Mbit / 6Mbit/ Sec ATM ATMİ Pulmux SAIminX T.1. ATME switches ATM cloud NO IMA HIMA IM Figure 2. Companies that require a carrier to provide ATM access might use IMufA only as a jumping-off point to the carrier's ATM cloud. In this situation, the ATM Inverse Multiplexer (Almux) at each customer site talks to a corresponding multiplexer at the central office, but there is no direct communication between multiplexers at different sites.