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RAD's ACE-3600 RNC-Site Gateway is a multiservice, multi-generation aggregation device for cost-effective delivery of UMTS, HSDPA and next-generation 3GPP traffic over Ethernet, IP and MPLS backbones. Converging multiple STM-1/OC-3 links over Gigabit Ethernet, the ACE-3600 uses pseudowire encapsulation to transport real-time ATM traffic over packet technology, with accurate PSN synchronization and distribution schemes.

Typically located at RNC sites, the ACE-3600 RNC-Site Gateway works opposite cell-site gateways such as RAD's ACE-3100 and ACE-3200, as well as the LA-130 DSL Cell-Site Gateway. Together, these solutions support service operators in their migration to all-IP RAN and enable optimized provisioning of mobile broadband and rich-media services.

For more information, download the Data Sheet.

  • Enables higher throughput for new 3GPP and HSDPA services
  • Delivers great savings in backhaul expenses through aggregation, better utilization of existing ATM equipment and the use of low-cost xDSL and PSN transport
  • Reduces OpEx by optimizing bandwidth allocation using ATM statistical multiplexing
  • Efficiently handles diverse 3G traffic including real-time voice and video and delay-tolerant HSDPA data
  • Minimizes delay variation and packet loss problems over PSN transport with robust clock recovery and distribution attributes
  • Ensures service continuity with full system redundancy and modular, hot-swappable architecture
  • Allows installation is limited spaces

The ACE-3600 RNC-Site Gateway is designed to accommodate the rapid expansion in mobile backhaul traffic resulting from the widespread deployment of 3G and HSDPA services. A multiservice aggregation unit, it converges multiple RNC STM-1/OC-3c links over Gigabit Ethernet, thereby reducing the number of links in the network and allowing the use of lower priced, higher speed connections. In addition to supporting higher throughput, the ACE-3600 features advanced shaping and scheduling capabilities that permit operators to implement overbooking strategies. As a result, operators benefit from substantial savings in CapEx and OpEx, generated by improved network efficiency, optimized resources and fewer leased services.

Emulated ATM services over PSN

The ACE-3600 facilitates economical packet transport for Node B to RNC connections by transparently delivering multiple ATM-155 links over Gigabit Ethernet using ATM pseudowire emulation technology. Establishing up to 1,024 PW connections, it incorporates RFC 4717-compliant encapsulation methods including 1:1 VC/VP and N:1 VC/VP, allowing a single pseudowire to be mapped with either a single or multiple VCs/VPs, accordingly. In addition, it allows a single or multiple ATM cells to be encapsulated per Ethernet frame.

Timing and synchronization

As ensuring proper delivery of real-time services depends on accurate timing and low latency, synchronization within the network becomes one of the main challenges in utilizing IP, MPLS or Ethernet transport for cellular backhaul. The ACE-3600 minimizes the impact of wander, jitter and packet delay variation by incorporating robust clock synchronization and flexible timing modes. These include G.823/824-compliant, per-interface RX clock recovery, as well as unicast and multicast clock distribution.


Using the ACE-3600, operators can assign each virtual connection or virtual path to a service class, define required QoS parameters and shape the ATM traffic according to CBR, VBR and UBR+ bandwidth profiles. Over packet-switched networks, outgoing pseudowire packets are classified and prioritized using 802.1Q and 802.1p, EXP, ToS or DSCP, depending on network technology.

  • Four STM-1/OC-3c ATM ports with full redundancy
  • One Gigabit Ethernet port with full redundancy
  • Up to 1024 PW (pseudowire) connections over a packet-switched network
  • ATM OAM with end-to-end control based on standard I.610 QoS assurance
  • Pseudowire OAM based on VCCV-BFD
  • Interface-based synchronization per ITU-T G.823/824, with unicast and multicast clock distribution
  • Full ATM switching, including traffic scheduling and shaping
  • VLAN tagging per 802.1Q with 802.1p scheduling for QoS over L2 networks
  • Small, modular unit with total front access design
  • APS per G.841 for full system protection
  • RADview-EMS element manager compatible with any third-party NMS/OSS

Our service portfolio is tailored to each individual customer’s needs. We aim to offer complimentary services to our customers to help them deliver the service level agreements they are contracted to provide.

For more information, view our Service Portfolio

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