Based on the most advanced Ethernet/IP, VoIP and TDM over IP/Ethernet technologies, the JumboSwitch product family offers an efficient, low cost alternative to SONET/SDH network solutions for many applications. Moreover, it promises straight-forward and simple scalability for all network topologies and sizes.
Compared to the complicated hierarchies of SONET or SDH based systems, the JumboSwitch drastically reduces operational expenses since it totally eliminates unnecessary hardware layers, thus significantly lowering the skill level required for installation, maintenance and troubleshooting.
In the past, SONET and SDH communication systems were the only choices when it came to building mission critical automation and control systems. But, progress in the control, computing and communication technologies has made these TDM based communication systems basically obsolete. As a result, modern network designs are moving towards Ethernet/IP based communication backbones
Application Diagram
You get much more than standard Ethernet connectivity from TC Communications. Depending on your budget and specific application requirements, you get to choose between Ethernet Switches, Media Converters, VoIP+ Virtual PBX, Multiplexers & Ethernet Telephone Extenders. In addition, Industrial grade versions are available with special components, connectors, circuitry, conformal coating, etc.
Application Diagrams:
Backhaul, the transport of voice, video and data between the cell site and the carriers' Mobile Switching Center (MSC), is increasingly relying on fiber optic networks to handle the bandwidth necessary to support 3G/4G wireless and escalating mobile data and voice services (email, internet, video, etc.).
You can get 2 different solutions from TC Communications: a cost efficient 24-channel T1/E1 & Ethernet Multiplexer or a more comprehensive JumboSwitch T1/E1-over-Ethernet/IP Gateway.
With its Gigabit Ethernet and TDM over IP/Ethernet capabilities, the JumboSwitch provides a future-proof solution for helping Service Providers to deliver end-to-end Ethernet and/or T1/E1 from cell sites to the MSC.
The JumboSwitch also provides Service Providers with several additional benefits such as optical and power redundancy, multiple power options, economical housing options and an industrial grade version that can confidently be used in the harshest of environments.
Because of its versatility, the JumboSwitch can be used to connect cell sites in a variety of configurations and topologies, including:
- As a primary IP-backbone self-healing ring network
- As a string or ring topology sub-network off of a JumboSwitch node
- As a sub-network off of a SONET/SDH multiplexer via GigE or T1/E1 interfaces
Applications Diagram
Linking voice devices over T1/E1 & T3/E3 circuits is a common but important application. TC Communications offers a wide variety of Ethernet and Legacy solutions:
- Linking T1/E1’s over Ethernet/IP
- Transporting T3 over Ethernet/IP
- Connecting T1/E1 signals from Cell Towers to Central Offices
- Connecting remote PBXs
- Adding Ethernet service to existing T1/E1 links
- Linking Channel Banks, Customer Premise Equipment & M13 Muxes to DSX-1 Cross Connects
- Extending the point of presence from Telco demarcation points
Application Diagrams
Connecting 911 Public Safety or Campus Emergency phones back to a central/control security center is a critical application.
TC offers a variety of reliable and proven connectivity solutions including a VoIP Virtual PBX, Fiber Optic Phone Extenders or Analog or Telephone Multiplexers. Products support multimode or single mode fiber optic cable or, optionally, copper cable for Ethernet products.
Most TC Communications VoIP, Ethernet and fiber optic voice products are certified as compatible with InterActTM 500 and CB3100 Series Emergency Phones manufactured by Code Blue® Corporation. These voice products also offer additional benefits such as optional Conformal Coating for units located in Code Blue® pedestals enabling immunity to hazardous, dusty or humid environments and several offer dry contacts (closures/detectors) to activate security cameras.
Applications Diagrams
Integrating TDM devices and legacy devices into an Ethernet/IP-based communications infrastructure offer several distinct benefits. Benefits include reducing capital costs and increasing productivity by converging voice and data on one platform.
Application DiagramProviding stable, high quality voice audio and system reliability between Emergency Dispatch Centers and remote radio transmitters and receivers is a critical network connectivity application, especially for fire and police departments.
TC Communications offers both TDM and analog-over-Ethernet solutions for linking or extending 2/4 wire analog, audio and intercom devices. The most popular products for this application are the TC8000 28-channel analog fiber multiplexer and the TC3846 Analog & Dry Contact Ethernet Gateway.
Benefits include:
- Improving voice quality
- Increasing system reliability in harsh environments
- Replacing unreliable leased phone circuits
- Stabilizing voice level settings for 600Ω audio channels
Both the TC3846-6 and TC8000 support voice bandwidths from 300Hz to 3.4KH, feature hot-swappable interface cards, offer fiber optic and power redundancy and are available in extreme temperature versions.
TC3846-6 Analog/Dry Contact-over-Ethernet Gateway
The TC3846-6 is the most versatile analog radio connectivity solution because it is part of the JumboSwitch product family. It is available in a chassis that can also support 13 other types of interfaces including T1 and legacy interfaces such as modem/fax over IP.
In addition, the TC3846-6 can be used to link or extend other types of analog, audio and intercom devices such as Frequency Shift Keying [FSK] modems, E&M, teleprotection relay controllers and dry contacts over Layer 2/3 IP networks.
TC8000 Analog Multiplexer
The most economical, simple radio tower site solution is the TC8000 Analog Multiplexer. Because it uses fiber optic cable rather than phone circuits, the audio signal quality is clean and consistent. Many radio dispatch systems use leased phone circuits which are particularly susceptible to line distortions and quality can vary from day to day.
In addition, since effective line losses are zero, level settings are simplified and, once made, remain precise because the multiplexer’s power and transmit/receive functions are internally redundant. When combined with the TC8000’s optional fiber redundancy and fiber path diversity, the emergency radio system is immune to "going out of service" due to any single component failure.
Application Diagrams:

Connect tower stations via Fiber to Central Dispatch Center using TC8000 Analog Multiplexer

Connect tower stations over Ethernet/IP to Central Dispatch Center using TC3846-6 600 Ohm Analog & Dry Contact Gateway

Voting-over-IP Application using 600 Ohm Analog & Dry Contact Gateway

4-Channel RoIP Broadcast over IP using 600 Ohm Analog & Dry Contact Gateway

Legacy networks frequently include a lot of older copper cabling. Copper leased lines, in particular, are susceptible to service interruptions due to age and lack of upgrade/maintenance.
Because of its TDM over IP/Ethernet capability, JumboSwitch® IP Gateways make great solutions. Modular in design, the JumboSwitch offers a wide variety of hot-swappable interface options including Analog over IP, RoIP, VoIP, DDS/56K-over-IP and T1/E1 or T3/E3 over Ethernet or vice versa.
Protect Against Leased Line Elimination avoid fluctuating leased line costs by utilizing your existing IP network. Extend your legacy network across:
- Ethernet LAN/WAN (Fiber, Copper)
- MPLS
- WiMAX
- Microwave (Ethernet, T1/T3/OC3)
- SONET/SDH
A lower cost, plug and play solution for legacy network applications is the TC8000 4-28 channel Analog Fiber Multiplexer. The TC8000 is perfect for replacing copper leased lines and improving radio system quality in public service and emergency networks.
Benefits of Replacing Leased Lines:
- Eliminate recurring telecom leased line costs
- Increase overall network reliability
- Increase network scalability for future growth
- Expand or upgrade bandwidth on demand
- Not dependent on bandwidth providers
Common Applications:
- Transmit IP over T1/E1/T3/E3 or vice versa on existing fiber links
- Deploy backup network to ensure business continuity
- Carry mixed IP/TDM traffic or migrate to 100% IP Data
- Increase reliability of Public Safety radio systems