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The Loop-AM3440-D is the latest product in the Loop Access DCS-MUX series that combines various digital access interfaces into E1 lines for convenient transport and switching. With 9 hot-pluggable mini size slots design, the Loop-AM3440-D provides access for a variety of TDM, IP, and voice interfaces. These interfaces are compatible with other Loop products.

With Loop products such as the AM3440-D, a DTE interface can be extended over copper wire pairs or any E1 transport facility. For each mini Quad E1 plug-in card, each card can have as many as DS0 124 time slots from RS232, X.21, V.35, and EIA530 interfaces, which can be multiplexed to fill 4 E1 lines. The AM3440-D also supports fiber optical plug-in cards, which can be used to aggregate up to 4 E1 channels onto a single fiber optical interface to connect with other AM3440 devices or O9310 devices.

The AM3440-D has 9 mini size plug-in slots. The plug-in cards are compatible with all mini size slots of the AM3440-A/B/C series.

This unit is a full cross-connect and can act as a mini DACS: one or more of the WAN ports can be used as a Drop & Insert with fractional E1 lines, which can then be multiplexed into a full E1 line.