Multiservice Access Node

RAD’s Megaplex-4100 multiservice access node, a high-capacity, carrier-class multiservice concentrator, supports transport of multiple TDM and next-generation services over PDH/SDH/SONET for large enterprises, including utilities, transportation and campuses.

 

The Megaplex-4100 multiservice access node provides an efficient and cost-effective tool for integrating various data interfaces, rates and user services including Fast Ethernet and Gigabit Ethernet services, low speed n x 64 kbps data, high speed data (up to STM-1/OC-3), digital voice, analog voice, and ISDN, for transmission over multiple E1/T1 and STM-1/OC-3 trunks.

 

The next-generation concentrator can terminate Ethernet traffic carried over E1/T1 links or a bundle of E1/T1 lines. It also features an internal cross-connect matrix of up to 160 Mbps, enabling it to cross connect traffic directly from one channel to another.

 

The Megaplex-4100 offers carrier-class service provisioning features, including end-to-end path management, to ensure ease-of-configuration and continuous service availability.

 

Megaplex-4100 multiservice access node’s variety of modules and its ability to build resilient SDH/SONET rings make it a cost-effective solution for reliable and failsafe networking.

• Single-box solution providing voice, data and advanced Ethernet services

• Minimal floor space: Compact platform with high capacity

• Carrier-class service provisioning features, including end-to-end path management, to ensure ease-of-configuration and continuous service availability

The Megaplex-4100 is a high-capacity multiservice concentrator supporting access over PDH/SDH/SONET transport networks. Large organizations with SDH/SONET backbones require an efficient way to transport and provision multiple services over their high capacity pipes in addition to new Ethernet-based services.

 

The Megaplex-4100’s capability to terminate and aggregate Ethernet traffic makes it a highly desired IP/MPLS aggregator and also a tool to better utilize the SDH/SONET bandwidth by supporting VCAT. The Megaplex-4100 does this with a large range of multiport modules that support Fast Ethernet and Gigabit Ethernet services, as well as popular TDM-based user services, such as dedicated low speed n x 64 kbps data, high speed data (up to STM-1/OC-3), digital voice, analog voice, and ISDN.

 

Its ability to handle a broad range of Ethernet, data and voice services and various network technologies in a single compact managed node makes the Megaplex-4100 a versatile and cost-effective next-generation multiservice access node solution.

STM-1/OC-3 private network owners can extend the use of existing ADM equipment or terminal multiplexers, saving replacement or expansion costs, by implementing VCAT protocols to carry the Ethernet traffic in a more efficient way and minimize wasted bandwidth.

 

Megaplex-4100 supports STM-1/OC-3 add/drop multiplexing for grooming LAN and legacy (TDM) traffic over SDH/SONET networks. Ethernet traffic can be mapped into one VC-4, up to three VC-3/STS-1, or up to 63 VC-12 or 84 VT-1.5. 1+1 MSP/APS redundancy is supported.

 

The Megaplex-4100 brings Ethernet economics and packet-switching efficiency to existing SDH/ SONET/TDM infrastructures. It thereby enables utilities and other private fiber network owners to reduce both Opex and Capex as they use their optical bandwidth for reselling revenue generating Ethernet services. For a modest investment, new business opportunities can be realized by leveraging existing equipment to support clear channel data streams and the latest high bandwidth services.

The Megaplex-4100 can terminate Ethernet traffic carried over E1/T1 links, or a bundle of E1/T1 lines, as well as IDSL, SHDSL or VCG in the STM-1/OC-3. This traffic can then be switched either to a different PDH/TDM trunk or to the Fast Ethernet or Gigabit Ethernet ports.

 

Ethernet CPE can also be connected via SFP or UTP ports of the Megaplex-4100 Fast Ethernet or GbE, and cross-connected with other services.

 

Various users can benefit from this solution: SDH/SONET customers who need to extend network lifecycle by maximizing bandwidth; customerswith mixed services (Ethernet and TDM); subscribers who do not need IP connectivity or services at this time but would like to invest in a solution that will enable a migration path; and users with two networks − SDH/SONET for voice and MPLS/IP for data.

Megaples-4100 features an internal 4/1/0 cross connect matrix of up to 160 Mbps. Traffic from any channel can be cross-connected directly to any other channel. Ethernet traffic carried over copper, DSL or fiber can be either cross-connected to another TDM/PDH trunk or terminated by the packet bus.

 

Traffic from the STM-1/OC-3 channel can be either cross-connected to another STM-1/OC-3 channel on a VC-12/3 level or with any other channel.

 

These capabilities enable the Megaplex-4100 to function as a service differentiation point at the headquarters, handing off traditional voice and data services to the transport network.

 

At the remote offices or customer premises, the Megaplex-4100 may also be deployed to effectively fan out multiple voice and data services.

Enterprises, campuses and utility companies can deploy two, three or even four different units in order to create an edge to the STM-1/OC-3 ring; multiplex voice, fax, data, and other low speed traffic; groom and cross-connect between channels; and terminate Ethernet traffic. The Megaplex-4100 can also work opposite devices like teleprotection modems and Omnibus units.

On top of the standard SDH/SONET ring support, the Megaplex-4100 can support E1, T1 SHDSL, or a mix of ring topologies. At sites where 1.5/2 Mbps bandwidth is enough and ring protection is required, the Megaplex-4100 provides a perfect solution in combining service provisioning and ADM capabilities.

 

One typical application is a TETRA network ring, which enables secure communications among police, fire and rescue, and ambulance crews from one central location. The system can also be used for maritime communications within territorial waters. The Megaplex-4100 supports a mix of E1/T1 and SHDSL infrastructure in a 2 Mbps ring, eliminating the need for external modems in longer distance segments of the network.

The Megaplex-4100 offers carrier-class service provisioning features, including end-to-end path management, to ensure continuous service availability. Advanced SNMP management capabilities support control and monitoring of all network elements: SDH/SONET access and ring units as well as remote POP and Last Mile broadband access feeders and CPEs.

 

The Megaplex-4100 can be managed by the SNMP RADview-EMS multiplatform element management system service center application.

 

Alternatively, configuration and monitoring can be performed either via Telnet or an ASCII terminal.

The modular, distributed architecture of the Megaplex-4100 enables redundancy at different levels of the network and provides a resilient system with no single point of failure. Each combined common logic, cross-connect matrix and broadband link module (CL) provides automatic switchover between each two links − STM-1/OC-3, GbE or both − within 50 msec, for 1+1 protection against network or cable failure. Hardware redundancy is provided through an optional redundant power supply and CL modules, with switchover to the backup CL links within 50 msec. I/O modules can also be configured for redundancy and can be hot-swapped, allowing for continuous service.

The CL modules function as common logic, cross connect and broadband link modules. CL modules are available in a number of port configurations: CL.1: Cross-connect between I/O module ports with up to 7680 DS0 timeslot capacity (more than 480 Mbps).

CL.1/155: Cross-connect, plus dual STM-1/OC-3 links with SFP fiber interface.

CL.1/GBE: Cross-connect, plus dual GbE links with UTP or SFP interface.

CL.1/155GBE: Cross-connect, plus dual STM-1/OC-3 links with SFP fiber interface and dual GbE links with UTP or SFP interface.

Megaplex-4100 supports up to 10 I/O modules, providing a flexible and scalable platform that meets a variety of user services, including E1, T1, SHDSL, n x 64 kbps high speed data, sub-DS0 low speed data, digital voice, and analog voice:

 

• Eight-port E1 or T1 modules

• Eight-port E1 over SHDSL module

• Three UTP or SFP Fast Ethernet ports on the SHDSL, T1 and E1 modules

• Six- or 12-port IDSL modules

• Four-port sub-DS0 low speed module

• Six- or 12-port low speed modules

• Four-, eight- or 16-port FXS/FXO/E&M analog voice modules

• Single or dual port 10 x 64 kbps fiber IEEE C37.94 standard compliance Teleprotection module

• Four 2- or 4-wire E&M analog voice with daisy chain of 5-way digital conference calls, per channel module