Volume: 3 Issue: 2
Date: March 23, 2009
 
  From the Lab  
TDM (T-1/E-1) Over Wireless IP

We were recently presented with a customer design that required running multiple T-1 links over a wireless connection.

The customer had existing PBX telephone systems at multiple locations in a remote rural area. They needed to add capacity to their PBXs, and received a quote from the local telephone company of over $750,000 to pull copper (not even fiber) to their location.

With lots of government funding becoming available for rural telecommunication projects, we were eager to find a good solution. There are opportunities to use this technology in agriculture, on Tribal Reservations, for cellular tower links, and for radio station studio-transmitter links.

The requirement was for point to multi-point, with several repeater locations along the path. Each wireless leg could be up to 11 miles. We needed to be able to support up to 5 T-1 circuits.

We worked with an OEM manufacturer of  customer premise demarcation devices which provide circuit emulation services over Ethernet.

These devices combine:
  - 4 x 10/100Base-T ports
  - 1 Combo 10/100/1000Base-T
     or 100Base-FX/1000Base-X port
  - 1 x 1000Base-X uplink,
  - 4 T1/E1s CES ports

We attached these devices to our HauteWRAP HR-WRAPSXB-5 units, and ran a TDMA-like protocol (TLP) wireless link in a point to point to point configuration using half duplex links.

The most critical issue for supporting TDM links over wireless is clocking/timing. T-1 links require a source clock from the base location. This typically comes from the PSTN carrier network. This clock is passed over the network to all of the remote PBXs. It determines how all of the multiplexing of DS0 voice channels occur. If the clock is not reliable, then the links will not work.

802.11 and other collision based wireless protocols do not provide reliable transportation, and therefore high delay variation, or jitter, which TDM circuits cannot tolerate. The TLP wireless protocol works great with TDM links.

We found that we could support 5 TDM circuits over a single 20MHz channel at distances up to 12 miles without any issue in clocking.

Our next step is to package this solution into a single product and get it certified for use in USDA Rural Development projects. Watch for more information on this in the future. If you are interested in learning more about this capability, please contact us.
 
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93403
 

HauteWire

Links to Wireless Solutions

Surveillance    Broadcast    Public Safety    Military    Hospitality

Wireless Surveillance is Heating Up!

In this issue:

  • HauteSpot presents seminar at ISCWest 2009 - We give you a brief preview of the upcoming seminar on Open Standard IP Video Surveillance

  • HauteRouterOS new features released - Mobile Mesh is now Go!

  • "From the Lab" - Creating TDM (T-1/E-1) links over HauteSpot wireless

  • Training and certification - What is being developed for HauteSpot wireless equipment

Bob Ehlers to Present Open Wireless Surveillance Architecture at ISC West 2009

On Wednesday, April 1st at 2pm, Bob Ehlers will be presenting a seminar on Open Standard Video Wireless Surveillance as part of the International Security Conference and Expo West 2009 in Las Vegas.

ISC WestSummary: "Extending real time access to video surveillance sources is becoming a huge issue. It is no longer sufficient to just record surveillance video on an NVR. Security officers, law enforcement, public safety, DHS have requirements to view real time video surveillance from their laptops, PDAs, and mobile phones from any location around the world. This means the need to support a variety of devices, resolutions, frame rates, encoding standards and data rates. Using industry standards like MPEG4 H.264, RTP, RTSP, as well as de facto standards like Flash, Windows Media Player and Quicktime, it is possible to provide secure access to real time video surveillance to virtually any device anywhere. This session we will explore the architecture for delivering this capability. Suitable for IP/IT professionals, integrators."

This will be a vendor agnostic overview of possible open architectures that can be used to build IP surveillance networks. Our focus will be on Central Station Surveillance Networks which are capable of sending secure, live streaming video from customer premise cameras, to the Central Station and then out to clients on the Internet. But the architecture could be used for almost any IP surveillance network.

We will discuss industry standard efforts by SIA, PSIA, and ONVIF, as well as how to leverage existing standards used for IPTV, Content Distribution Networks, and broadcast production (SMPTE, IEEE, ITU).

We promise not to make this a vendor sales pitch! If you have not already registered for ISC West, you can get a $50 discount on seminars or free exhibits pass by going here.

We will be exhibiting with RGB Spectrum in booth 15131. If you would like to meet any time during ISC, please send an email to sales@hautespot.net . We can arrange a time to meet exclusively with you.

If the audience feedback is positive, we may offer this same seminar through one of our distributors later this year.

There is also a LinkedIn Event where you can indicate that you are going and see who else is going here.

We hope to see you at this informative and educational presentation. 

HauteROUTEROS New Release

HauteWRAPA new version of HauteRouterOS for the HauteWRAP product family has just been released. For existing customers, you can download an upgrade package from our support web site. In this new release there are many exciting enhancements:

  • Layer 2 Mesh networking support has been stabilized. This important enhancement means that mobile mesh networks, which are truly dynamic, can be easily deployed with good results for video. The mesh protocol is derived from the still pending 802.11s specification. It operates at layer 2, allowing for faster forwarding, seamless operation of MAC layer discovery tools, and better scalability than WDS only based mesh.

  • HSNM - The HauteSpot Network Manager is a utility that allows you to manage and monitor your wireless and wired networks. It runs under MS Windows, or under Wine on Linux systems, and is very easy to use. It provides simple device monitoring, dependency alarming, and full diagnostics of HauteWRAP devices.

  • HS Configurator- The HSCONF utility provides a robust device management interface for all HauteWRAP devices. Find your routers using MAC address or IP address, then connect and configure them using this GUI interface tool.

  • Web Interface - The HauteWRAP web management interface has been redesigned for easier use.

  • Manuals - The user manuals for both the HauteWRAP and HSNM have been updated to reflect the new operating system and feature capabilities.

There is no need to update stable working systems if you do not need these additional features. However, all new systems will ship with the new and improved HauteRouterOS operating system. As with all software upgrades from HauteSpot Networks, there is no charge.

Training and Certification Programs

We have been asked about offering training and certification on our products. To date, our philosophy has been to carefully choose system integrators that have the required skills to successfully install our equipment. Then we work with them on their first few installations to help them become familiar with the product and self-sufficient. This philosophy does not scale very well for us nor does it allow system integrators who are skilled in CCTV or other areas of surveillance and security to develop the skills needed to install and use a wireless IP surveillance network.

So, we are working on a training and certification program. The program will be on-line and would combine Flash movies, hands on training on remote systems, and reading manuals and deployment guides. At the end of each module there will be a test, again taken on line. Successfully passing all of the courses in a line of study will lead to certification.

There are three levels of certification we are considering:

  • HauteSpot Wireless Network Installer - This program will be targeted at security system installers who have little to no knowledge of IP networking or RF. The program will start by teaching basic IP networking skills, then add RF basics, followed by product specific installation and configuration skills. Upon successful completion, the person will be qualified to configure and install outdoor wireless networking equipment under most conditions.

  • HauteSpot Wireless Network Administrator - This program will be targeted at experienced IT network professionals and will focus on wireless technologies, wireless routing and QoS, and device configuration. An entry test will be required showing that the applicant has solid understandings of TCP/IP networking, firewalling, routing, and related topics. Applicants that do not meet the criteria for entry into the program by passing the entrance exam will be referred to standardized industry training which will need to be completed before taking this course. At the completion of the program, a Network Administrator will be fully capable of diagnosing and optimizing wireless networks using HauteSpot products.

  • HauteSpot Wireless Network Designer - This program will be targeted at HauteSpot Wireless Network Administrators who want to move into a planning, design and consulting role. Advanced RF and wireless network design concepts will be applied. Applicants will learn how to use simulation modeling tools, conduct detailed surveys, select property equipment, and specify network topographies. At the completion of this program, the Designer will be fully capable of planning and implementing the most complex wireless network designs.

Our objective is to keep the cost and time requirements of this certification and training program to a minimum so that the maximum number of people can participate.

Eventually it would be our intent to make reseller qualifications dependent on having appropriately trained and certified staff.

Before we finalize our training syllabus and start development of the courses, we wanted to offer our customers the opportunity to provide input to this effort. Please send us any ideas you have regarding training and certification, including course requirements, content, methods of delivery, etc to support@hautespot.net. We will do our best to incorporate your input into our training development. 

HauteSpot Products Announces Distribution Availability

Last month HauteSpot Networks finalized distribution capabilities with both Anixter and Graybar Electric. In both cases, customers can order HauteSpot products through these distributors under their normal terms. Customers may need to talk to HauteSpot sales reps in order to determine the proper equipment for their needs. They can then provide the list of material to either of the distributors for fulfillment. Since this is a new capability, not all distributor locations may be aware of how to order our products. Please ask them to call HauteSpot Networks directly for fulfillment details.

 
Investors Update

To learn more about investment opportunities at HauteSpot Networks contact investors@hautespot.net .

Manufacturers Reps and Resellers
Effective October 1, 2008 we have set up a new reseller pricing program which includes incentives for volume purchases and quarterly volume based rebates. For more information on the new pricing, please contact Charlotte Chang at 805-541-9477x21.

We are always looking for capable Value Added Resellers, System Integrators and Security Installers to resell our products. Please contact us if you have experience in the security, public safety, law enforcement or broadcast markets and are interested in working with us. We prefer VARs and Integrators who are already familiar with IP cameras, networking and similar technologies.

We provide an aggressive discounts, terrific support, and great products that really work.

 

 
 

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