As a modular multiservice access node, the Megaplex-4100 provides an efficient and cost-effective solution for integrating various interfaces, data rates and user services. These include Fast Ethernet and Gigabit Ethernet as well as low speed sub-64 kbps data, serial n x 64 kbps data, high speed data up to STM-4/OC-12, digital voice, analog voice, ISDN, and additional industry specific interfaces. Furthermore, the device functions as a carrier-class TDM and Ethernet aggregator, as well as high capacity DS0 cross connects, as detailed below.
The Megaplex-4100 supports carrier-class service provisioning and 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 First Mile broadband access feeders and CPEs.
The device is managed by the RADview-SC/TDM Center application. Alternatively, configuration and monitoring can be performed via either Telnet or an ASCII terminal using RAD command line interface (CLI).
In addition, the Megaplex-4100 supports the latest security protocols, including SNMPv3,
RADIUS and SSH.
The Megaplex-4100 supports legacy services over packet switched networks, using the MPW-1 module to convert the data stream from other modules to Ethernet, IP or MPLS packets with TDMoIP, CESoPSN, SAToP, and HDLCoPSN pseudowire technologies. The device's ASIC-based architecture provides a robust pseudowire solution with minimal processing delay.
The Megaplex-4100 offers an end-to-end solution as central aggregation platforms for diverse CPE devices, including RAD’s ASMi, Optimux, Megaplex, IPmux, RICi, FCD, DXC, and ETX lines.
The device can terminate TDM and Ethernet traffic carried over E1/T1 links, fiber, or SHDSL, as well as over VCGs in STM-1/OC-3 and STM-4/OC-12 links. This traffic can then be switched either to a different PDH/TDM trunk or to the Fast Ethernet or Gigabit Ethernet ports.
Various users can benefit from this solution:
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SDH/SONET customers who need to continue using their network while maximizing bandwidth utilization
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Subscribers with mixed Ethernet and TDM services
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Subscribers looking for a future-proof migration path for IP connectivity
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Dual network owners using SDH/SONET for voice and packet for data
The modular, distributed architecture of the Megaplex-4100 enables redundancy at the hardware, link and service path levels, to provide a resilient system with no single point of failure and under-50 ms switchover time.
In addition to supporting standard SDH/SONET rings, the device can be used to create E1, T1, TDM over SHDSL, TDM over fiber, or a mix of ring topologies.
The Megaplex-4100 features a wide range of diagnostics, performance monitoring and alarm mechanisms.
The Megaplex-4100 supports STM-1/OC-3 and STM-4/OC-12 add/drop multiplexing for grooming LAN and TDM traffic over SDH/SONET networks. It eliminates the need for separate ADM and multiplexer units for private networks where voice, Ethernet and data services are required.
By implementing VCAT protocols to carry Ethernet traffic efficiently and minimize wasted bandwidth, the device brings Ethernet economics and packet switching efficiency to existing SDH/ SONET infrastructure. It enables utilities and other private fiber network owners to reduce both OpEx and CapEx, while service providers can leverage existing equipment to support clear channel data streams and the latest high bandwidth services.
Ethernet traffic can be mapped into n x VC-12/VC-3/VC-4 or n x VT 1.5/STS‑1/STS-3C virtual containers.
The Megaplex-4100 features dual-star connection architecture with hybrid TDM-Ethernet modules, which allow native TDM and Ethernet traffic handling with minimal encapsulation delays and zero bandwidth overhead.
Ethernet traffic is handled by a multiport Gigabit Ethernet aggregation engine, designed for Carrier Ethernet capabilities, such as flow-based or port-based traffic management, performance monitoring and Ethernet OAM. Ethernet traffic can be terminated by any of the following:
TDM traffic can be cross connected at a DS0 level, DS1 (framed/unframed) level, or SDH/SONET (high/low order) level, with per-port cross connect operation mode selection.
The device features an internal DS0 cross connect matrix of up to 7,872 DS0 channels. Traffic from any channel can be cross connected directly to any other channel.
These capabilities enable the device to function as a service differentiation point at the central office, handing off TDM voice and data services to the transport network. It can also be deployed at remote locations or the customer premises to effectively fan out multiple voice and data services.
The CL.2 modules function as common logic, cross connect and broadband link modules, and are available in a number of port configurations. For direct connection to the SDH/SONET network, CL.2 features two standard network ports with software configurable STM-1/OC-3 or STM-4/OC-12. The dual ports on the CL.2 module can be used for either parallel operation or for redundancy.
For direct connection to packet-based networks, CL.2 has two UTP or SFP-based GbE ports. The UTP interface features auto-negotiation and fast detection capabilities.
The Megaplex-4100 supports up to 10 I/O modules, including selected modules operating in the Megaplex-2100/2104 chassis:
M8E1, M8T1: Eight-port E1 or T1 modules with three Fast Ethernet ports (license-based)
M16E1, M16T1: 16-port E1 or T1 modules
M8SL: Eight-port E1 over SHDSL module with three Fast Ethernet ports (license-based)
MPW-1: TDM pseudowire access gateway with a 256 DS0 capacity and three Fast Ethernet ports
ASMi-54C: Eight-pair SHDSL.bis module with two Fast Ethernet ports
ASMi-54C/N: Eight-pair SHDSL/SHDSL.bis module with two Fast Ethernet ports and eight E1 ports
OP-108C, OP-106C: Dual 4 x E1/T1 and Ethernet fiber multiplexer modules
OP-34C, OP-25C: 16 x E1/T1 and Ethernet fiber multiplexer modules
HS-6N, HS-12N: Six- or 12-port n x 64 kbps high speed modules
HSU-6, HSU-12: Six- or 12-port IDSL modules
HS-S: Four-channel ISDN S-interface module
HS-703: Four-channel co-directional data module
HS-RN: Four-port sub-DS0 low speed module
HSF-2: Two-port fiber optic Teleprotection interface module
LS-6N, LS-12: Six- or 12-port low speed modules
VC-4/4A/8/8A/16: 4/8/16-port FXS/FXO/E&M PCM and ADPCM analog voice modules
VC-4/OMNI: Four-port PCM Omnibus (multiparty hotline) voice module
ACM: Alarm and diagnostics module with four outbound relays
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