The Megaple-2104 is a flexible, modular multiservice access multiplexer, enabling integration of multiple voice, ISDN, video, data, and LAN services over multiple E1/T1, Ethernet uplinks, or n x 64 links.
The Megaplex main links and user ports incorporate copper, CSU/DSU, LTU, and fiber interfaces and are compatible with RAD’s standalone ASMi-31, ASMi-52 and FCD modems.
The Megaplex-2104 is especially suitable for use as an economical, compact remote distribution node. It is ideal for small to mid-size business entities, deployed at the carrier’s point-of-presence in the exchange, as well as at a remote distribution node, such as in an office building’s basement.
Megaplex is standards-compliant, ensuring compatibility in multivendor environments worldwide. The E1 and T1 TDM framing and signaling, PCM/ADPCM voice coding, ISDN, and data interfaces all conform to international standards.
The single or dual E1/T1 main links support 1+1 and 1:1 protection switching for any E1/T1 or fractional E1/T1 port with non-blocking cross connect capability. This provides drop-and-insert capability between any two links on one module or between two modules. Megaplex-2104 stores up to 10 different configuration databases and can switch among them. This feature enables alternate routing in the event of network or service failure, or at a predetermined time.
The optional redundancy on common logic, mainlink and power supply ensures a high level of system reliability on Megaplex hubs.
Extensive network management is provided on multivendor management platforms using Megaplex with standard SNMP protocol.
The Megaplex-2104 provides the control and monitoring required in large networks using the RADview element manager platform. The Megaplex is also supported by the RADview TDM Service Center and the RADview TDMoIP Service Center, allowing the service allocation to be provided at the click of a mouse button.
The Megaplex-2104 can be mounted in 19" or 21" racks for carrier and service provider environments.
R2 support
The Megaplex also includes R2 support with transparent MFC/decadic implemented within the main link. This allows the customer to connect a legacy R2-PBX to a digital (E1 CAS) PBX, thus extending the life span of existing equipment.
TDM over IP support
Megaplex incorporates RAD’s TDMoIP technology in the ML-IP main link module. This enables all existing TDM services to be transported over packet-switched networks. With the ML-IP module, the Megaplex can be connected in a daisy-chain topology where multiple Megaplex units can be cascaded together. TDMoIP support also allows the Megaplex to operate opposite the IPmux family of TDMoIP gateways.
Along with TDMoIP, Megaplex supports Resilient Fast Ethernet Ring (RFER) with under 50 msec ring restoration capabilities. Up to 40 E1 or 50 T1 TDM circuits can be connected per Fast Ethernet ring or daisy-chain.
The addition of TDMoIP functionality further expands the broad scope of solutions supported by the Megaplex family and IPmux family.
Management
Network management provides centralized control of all network nodes, including interface configuration, connection setup, alarms, and management.
Extensive network management is provided on multivendor management platforms, using Megaplex with standard SNMP protocol. Megaplex provides the control and monitoring required in large networks using the RADview element manager platform. The Megaplex is also supported by RADview-SC/TDM and RADview-SC/TDMoIP, allowing the service allocation to be provided at the click of a mouse button.
All parameters are user-programmable for up to 10 independent configurations (10 databases per unit). All configurations are saved in nonvolatile memory.
Alarm status and system configurations are available at all times. Multiple Megaplex hubs can be controlled from a single PC or UNIX workstation.
The Megaplex can be managed also via the RADview Service Center (for path management) or by third-party path management applications via CORBA interface.
Programming and setup of a remote Megaplex device is accomplished:
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out-of-band, through the Ethernet port
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outof-band, through the supervisory port of the remote unit, over a modem link or FRAD
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inband, using a dedicated timeslot, dedicated Frame Relay, PPP or TS0.
Diagnostics
Megaplex incorporates test features for rapid fault detection and easy maintenance. Once in operation, all system and I/O modules undergo self-testing, and problems are reported to the management system. Local and remote loops may be performed on each channel and on the main links.
Any timeslot can be selected for BERT/tone injection. In addition, a loop can be initiated per any timeslot.
The ABCD status of any voice channel can be captured with a single click (signaling monitoring).
Alarms
Alarm information is stored in the common logic module and is automatically read by the
management system from any node. Up to 256 alarms can be stored in a queue and a maximum of 1,024 alarms can be stored in a file on the PC, to be read by the management system.
System modules
The common logic module stores configuration and event information, and uses a SLIP/PPP or Ethernet connection to communicate with the management station via an SNMP agent. Flash EPROM for remote software download, Telnet and an ASCII craft terminal are also supported.
Main link modules
The single or dual E1/T1 and ML-IP main link modules incorporate the DS0 matrix between the I/O channels and each of the E1/T1 trunks. The modules support 8 Mbps non-blocking cross-connect for any DS0 coming from the channels or from the trunks. Multiple fractional E1/T1 ports are supported. These main links support 1+1 protective switching for any E1/T1 port.
The eight E1/T1/DSL main links support a higher capacity of 16 Mbps when used together with the HS-12 module, but do not support redundancy.
Four timing options are available:
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Link receive clock
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Internal crystal oscillator channel
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Clock from any high-speed module (HS-6N, HS-12N, HS-S, HS-U, HS-703, HS-Q/N)
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Station clock
Any clock source can be set as the fallback in the event of primary clock source failure.
Ring support (E1/T1 and Ethernet)
The Megaplex supports various ring topologies ensuring “no single point of failure.”
E1/T1 ring protection provides self-healing in less than five seconds. Resilient Fast Ethernet Ring provides a 100 Mbps (up to 40 E1/50 T1) Ethernet ring with self-healing in less than 50 msec.
Modules
The Megaplex-2104 is a 2U-high chassis with five slots − for both I/O and main link modules. This allows for a mix of a wide variety of data, voice, fax, video, and LAN services. All Megaplex-2100 modules fit both Megaplex-2100 and Megaplex-2104 chassis.
Main link modules
ML-IP
Three-port 10/100BaseT Ethernet uplink module with up to 4 Mbps uplink capacity. This module serves as the main link to the IP network, placing the packetized TDM data stream from the I/O modules onto the IP network in the form of TDMoIP framing. The module is also available with two fiber optic 100BaseFX uplinks.
ML-2E1, ML-1E1, ML-2T1, ML-1T1
Dual/single E1/T1 links with integral, soft configurable LTU/CSU.
MLF-2E1, MLF-1E1, MLF-2T1, MLF-1T1
Dual/single E1/T1 links with fiber interfaces, eliminating the need for an external fiber optic modem.
ML-20N
Dual/single n x 64 kbps main link with data interfaces such as V.35, X.21 and more.
MSL-8
Eight-port SHDSL module, extending range up to 10.6 km (3.5 miles) over existing copper lines.
ML-8E1, ML-8T1
Eight-port E1/T1 main link module
I/O modules
Data modules
HS-ETH/SW
Four 10/100BaseT LAN modules with built-in Layer 2 Ethernet switch, featuring VLAN support and static routing capabilities.
HS-DP
OCUDP low speed module with three/six ports.
HSF, HSF-2
n x 64 kbps fiber data module for transporting teleprotection and teleportation signals, IEEE C37.94 compliant.
HS-Q/N, HS-6N, HS-12N
Four, six, or 12 channels, each with independently selectable data rates of n x 64 kbps or n x 56 kbps (n = 1 to 31 for E1, or 1 to 24 for T1). Interface is field-selectable for V.35, V.36/V.11, X.21 or RS-530/ RS-422.
HS-ETH
One, two or four 10BaseT UTP Ethernet bridge/router channels or 10/100BaseT bridge, supporting LAN-to-LAN connections.
HS-703
Four 64 kbps G.703, co-directional channels.
HS-RN
Four V.24/RS-232 low-speed channels. Supports channel data rates up to 38.4 kbps async and up to 64 kbps sync, supporting end-to-end control signals.
LS-6N, LS-12
Six/twelve sync/async V.24/RS-232 channels with rates from 1.2 kbps baud to 64 kbps, and end-to-end control signal and BERT.
HS-U, HS-U-6, HS-U-12
Four, six or 12 U interface channels (2B+D) using 2B1Q line code for full duplex operation over 2-wire. Supports data rates up to 128 kbps and a range of up to 5 km (3.1 miles), and includes power feeding to the remote NT.
Includes full duplex mode for management of remote ASMi-31.
HS-S, HS-S-12
Four or 12 ISDN S interface channels (2B+D).
Operates as either TE or NT. Each channel supports data rates up to 128 kbps.
Voice/fax modules
VC-16A
Sixteen toll-quality, PCM/ADPCM (32/64 kbps) non-signaling voice compression channels, enabling two voice channels to be placed on each 64 kbps timeslot.
VC-4, VC-8, VC-16
Four, eight or 16 PCM voice channels with optional E&M, FXS and FXO interfaces.
VC-4LB, VC-6LB
Four or six voice channels for operation with special local battery (LB) telephone sets (e.g., military field telephones).
VC-6, VC-6A
Six analog voice channel modules support FXS/ FXO/E&M analog voice channels. The voice is digitized into standard PCM at 64 kbps. For the VC-6A module, each channel can also be compressed into ADPCM 32 kbps. When using ADPCM compression, two channels occupy one timeslot.
VC-4A, VC-8A
Four or eight analog voice channels using PCM (64 kbps) encoding or ADPCM (24 or 32 kbps) encoding, with E&M, FXS or FXO interface options.
VC-4/E&M/OMNI
A special Omnibus E&M interface module provides four toll-quality voice channels to support applications where a master site needs to communicate with multiple remote stations simultaneously (such as to broadcast an important message).
VFS-60/48/30/24
Voice compression module with up to 2 x E1 or 2 x T1 capacity, using G.723.1 (6.3 kbps per channel) or G.729.A (8.0 kbps per channel) compression methods, with modem/fax relay, transparent timeslot support, voice activity detection, silence suppression, and comfort noise generation.
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