For more than 20 years, Westell, Inc. has been the leader in providing the Point of Demarcation (demarc) interface to wireline backhaul carriers. Westell’s robust yet simple plug-in T1 SmartJack Network Interface Unit with Performance Monitoring (NIUPM) and the CellPak™ service hand‐off integrated enclosure system have been the key to allowing wireline carriers to offer and maintain Service Level Agreements (SLAs) of 99.999% availability. The CellPak demarcation interface cabinets are located in close proximity to the cellular service provider's Radio Access Network Base Station (RANBS). This location gives the backhaul providers and cellular operators independent, secure, and environmentally protected access to the vital T1 transport.

The explosion of smartphones put an enormous strain on the cellular backhaul network infrastructure in recent years, causing the cellular backhaul network to reach a critical tipping point:  T1 transport circuits could no longer effectively handle the bandwidth requirements that the consumers were now using and demanding. To accommodate the explosive growth of data and video in the mobile network, the cellular backhaul market is shifting today from TDM-based to Ethernet-based backhaul. Westell is offering service providers a variety of flexible solutions that will allow them to ease this transition. The eSmartAccess™ family of solutions include simple plug-in NIUs with flexible port configurations to accommodate both legacy T1 as well as Ethernet, and a next-generation CellPak™ -- the eCellPak™ -- which has all the features and environmentally hardened attributes of the original CellPak, plus the addition of fiber management, telemetry sensors, and a backplane that supports additional transport options like DS1 over Ethernet and Ethernet over Copper Bonding.

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