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Expansion module - 8 ports
The FXO module is one of several expansion modules for the ATLAS 550 integrated access devices. It provides eight (8) foreign exchange office loop interfaces. This module should be selected when a connection to one to eight voice line cards of a key system or PBX is required. PBX extensions may be extended to a remote site by combining a TSU on the remote end with FXS modules. The module can emulate the CO side of a DID (Direct Inward Dial) trunk. The module provides standard 2FXO or DPT functionality to distances of 2400 feet.
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