RAD offers a rich variety of Ethernet over copper access solutions, taking advantage of widely deployed IP or legacy ATM DSLAMs in delivering next generation Ethernet services, while catering to a multitude of bandwidth and application needs:

RAD’s carrier-grade LA-210 EFM (Ethernet in the First Mile) access device delivers mid-band, symmetrical Ethernet services where fiber is not available. Its Ethernet over copper capabilities offer substantial price-performance benefits by allowing carriers to introduce new Ethernet services – suitable for data as well as real-time applications – with higher bandwidth rates and lower service costs, while avoiding investments in new overlays. Moreover, by enabling converged Ethernet, ATM and legacy TDM service delivery over common SHDSL access lines, LA-210 facilitates increased profitability through improved network utilization and offers an economical solution to continue generating revenues from ongoing voice and data commitments.

Featuring sophisticated E-NTU (Ethernet Network Termination Unit) capabilities, the LA-210 enables end-to-end Carrier Ethernet service attributes, primarily:

• High availability and resiliency

• Scalable, remote bandwidth provisioning

• Quality-of-service (QoS) control per user port, Ethernet flow and CoS

• Proactive performance monitoring with Ethernet OAM support

• SLA enforcement from the service hand-off points

• MEF-9 and MEF-14, EPL, EVPL and EPLAN service types

When connected to IP DSLAMs, the LA-210 employs standard Pseudowire Emulation (PWE) capabilities to transparently deliver legacy TDM services, such as PBX connectivity, across packet-switched networks (PSNs). These capabilities include circuit emulation over PSN (CESoPSN), structure-agnostic TDM over packet (SAToP) and TDM over IP (TDMoIP). It also uses advanced clock recovery mechanism to restore TDM timing over the PSN and prevent jitter and packet loss. In addition, mid-band Ethernet connectivity or greater distance reach are achieved with multi-pair 2Base-TL EFM bonding, providing granular bandwidth rates of up to 22 Mbps and effectively bridging the gap between lower-speed, single-pair SHDSL lines and higher fiber speeds.

RAD also accommodates the needs of SMEs (Small and Medium Enterprises) with its LA-110 integrated access device. Leveraging well-established deployments of SHDSL and asymmetrical ADSL technologies, it offers cost and coverage benefits in delivering multiple services such as voice, lower rate Ethernet and Internet access.

Wholesale DSL services such as SHDSL and ADSL2+ can also be leveraged for cellular backhaul, using RAD’s LA-130 cell site gateway. SHDSL is ideal for transporting voice and data services, while non-delay-sensitive applications such as HSDPA can be funneled to ADSL2+ lines. Supporting 2G/3G cell site co-location, the LA-130 grooms fractional E1 ATM channels and E1 TDM channels onto a single network interface to substantially lower backhaul expenses. Additionally, it optimizes bandwidth utilization by grooming fractional E1 UNI, several IMA (Inverse Multiplexing over ATM) links, or circuit-emulated (CES) E1 TDM lines into a single IMA network interface.