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Loop AM3440 is the most popular telecom equipment for SCADA and substation communication networks. Its custom design and unique features include the following.

C37.94 interface card for teleprotelecion channels

OCU-DP card for legacy SCADA communications

Interface cards for EIA530/RS232/RS422/RS485/X.21/V.35

Dry Contact interface card for alarm input/output and SNMP traps

Data bridge card for RS232

Conference bridge card for FXS/E&M/RS232

Power supply options include -48VDC, -24VDC, and -125VDC

Uplink can be T1, Ethernet/GbE (TDMoE), and OC-3/12


The Loop-AM3440-A/B/C series are Access DCS-MUXs that combine various digital access interfaces into E1 or T1 lines for convenient transport and switching. The Loop-AM3440 Access DCS-MUX provides access for a variety of TDM, IP, and voice interfaces. These interfaces are compatible with other Loop products. Using these
products, a DTE interface can be extended over copper wire pairs or any E1/T1 transport facility. Each Quad E1/T1 plug-in card can have as many as DS0 124/96 time slots from G.SHDSL, RS232, X.21, V.35, V.36 and EIA530 / RS449 interfaces, which can be multiplexed to fill 4 E1/T1 lines. The AM3440 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 with the O9310-E1.

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