Carrier Access Broadway Wireless Mobile Carrier Class Platform for Service Providers

Broadband Network Access Platform

BROADway is designed specifically to address the demanding requirements service providers have in
interconnecting their cell sites to the mobile switch center. Together with Carrier Access’ Adit® and
Axxius® platforms, BROADway provides a broadband solution that addresses the needs for both
network optimization and new services deployment.

BROADway’s integrated functionality can optionally include a SONET/SDH Add-Drop
Multiplexer (ADM), VT/TU-level switch, IP access/edge router, 1/0 Digital Crossconnect
System (DCS), 1/3 Multiplexer (M13) and multiple Channel Service Units (CSU).
By deploying BROADway and moving intelligence to the edge of the backhaul network,
service providers can reduce or eliminate costly leased T1/E1 circuits, free up stranded
bandwidth and consolidate traffic onto a fewer number of mobile switch interfaces.
Advanced multi-services capabilities support the rapid deployment of both mobile
subscriber- and non-subscriber-based revenue producing services.

BROADway’s hardened platform design and multi-layer redundancy architecture reduces
maintenance truck rolls and improves billed minutes uptime. Advanced management and
diagnostic features allow the service provider to take control of the network and rely less
on third party wireline carriers.

Designed for the rigorous requirements of wireless carriers, BROADway also fits
in wireline and enterprise applications that benefit from its high level of availability,
flexibility, and scalability.

Benefits:
• Cuts leased circuit costs and saves on costly core switch ports by consolidating traffic at the edge of the network
• Eliminates cost, rack space, and management complexity by integrating multiple transport and internetworking functions into a compact, modular platform
• Advanced level of fault tolerance improves network quality of service and protects critical network traffic at all times
◗ Supports rapid network capacity growth and new revenue producing services by simply adding additional interface
modules or switch processors

Broadband Network Access Platform
BROADway is designed specifically to address the demanding requirements service providers have in
interconnecting their cell sites to the mobile switch center. Together with Carrier Access’ Adit® and
Axxius® platforms, BROADway provides a broadband solution that addresses the needs for both
network optimization and new services deployment.
BROADway’s integrated functionality can optionally include a SONET/SDH Add-Drop
Multiplexer (ADM), VT/TU-level switch, IP access/edge router, 1/0 Digital Crossconnect
System (DCS), 1/3 Multiplexer (M13) and multiple Channel Service Units (CSU).
By deploying BROADway and moving intelligence to the edge of the backhaul network,
service providers can reduce or eliminate costly leased T1/E1 circuits, free up stranded
bandwidth and consolidate traffic onto a fewer number of mobile switch interfaces.
Advanced multi-services capabilities support the rapid deployment of both mobile
subscriber- and non-subscriber-based revenue producing services. BROADway’s
hardened platform design and multi-layer redundancy architecture reduces
maintenance truck rolls and improves billed minutes uptime. Advanced management and
diagnostic features allow the service provider to take control of the network and rely less
on third party wireline carriers.
Designed for the rigorous requirements of wireless carriers, BROADway also fits
in wireline and enterprise applications that benefit from its high level of availability,
flexibility, and scalability.

Applications:
• Broadband access concentration
• Radio Access Network (RAN) traffic hubbing
• Broadband cell site integrated access
• SONET/SDH ring extension
• Fault tolerant SS7 network transport
• IP traffic aggregation
• Mobile Switch Center (MSC) interconnection
• 2G to 3G backhaul network migration
• Mobile Switch Center multi-services front-end

Features:
• Modular multi-switch architecture
• Base System supports up to 2 Ethernet, 60 T1/E1, 4 DS3/E3 and 4 OC3/STM1/EC1 interfaces
• Stackable system expansion for higher port densities
• Any to any DS0 and VT/TU granular digital cross connect switching
• Integrated multi-port IP access routing
• SONET/SDH add-drop multiplexing
• Multi-layer, wireless carrier class reliability
• Adaptive Switching: powerful, node-level traffic protection
• Integrated CSUs on all T1/E1 interfaces
• Environmentally hardened (-40 degrees C to +65 degrees C)
• Lightning protection exceeding Bellcore specifications
• Web-based GUI, TL1, SNMP, and command line management
• Advanced circuit diagnostics and troubleshooting utilities
• Integrated Bit Error Rate Tester (BERT)
• Compact, 5 Rack Units (RU) high base system

Wireless Carrier Reliability

Carriers can realize many cost-saving benefits from moving network intelligence farther out into the backhaul network, but only if the equipment provides a higher level of reliability and manageability. BROADway supports this migration with a multi-layer approach to reliability that provides confidence and control throughout the network. BROADway has multi-layer reliability features unmatched in the industry.

System Level In addition to optional redundant system control logic, BROADway contains numerous hardware and software features that ensure high reliability, including:

• Environmental hardening for extreme temperature operation
• Lightning protection that exceeds Bellcore standards
• Multiple network synchronization sources, clock quality evaluation, and ranking
• Redundant fan units and integrated temperature monitoring
• Distributed, redundant power design with a wide ranging DC power input (from +/-20V to +/- 60V)

Switch Matrix
Every switch matrix in the system (TDM and IP) is available with 1:1 or 1:N redundancy.

Interfaces
Software and hardware work together to provide hardware redundancy on all interfaces. 1:1 and 1:N hardware redundancy is designed into the system without the need for custom Y-cables or external devices.

Traffic Protection

BROADway includes multiple methods of protecting critical traffic. All SONET/SDH traffic can be protected in terminal
configurations using Linear APS or Multiplex Section Protection (MSP). Ring configurations are protected using Unidirectional Path Switched Ring (UPSR) or Trail protection. Carrier Access has also developed a unique feature providing either Linear APS or UPSR protection for T1, E1, and DS3 circuits. With less than a 50 msec recovery time, low speed circuits can achieve SONETlike reliability.

Adaptive Switching

As an additional layer of protection, BROADway incorporates a node level switching feature called Adaptive Switching that allows the system to reconfigure itself in response to circuit or interface failures, performance degradation, or other conditions. This powerful feature reassigns any number of connections and node-level configurations to protect the highest priority traffic and maintain traffic on working circuits.