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Clearance items can be either customer returns in "like-new" condition (Open Box Items), unused inventory stock rotation, or manufacturer refurbished. All items are tested, quality assured, fully functional, and carry a full 90 day manufacturer's warranty.
FXS/FXO Modules - The Rhino modular channel bank model
allows for installation of either a 4-channel FXS or FXO analog
daughter card. If the four slots are to be used as data, there is no
need to install an analog card.