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Q1. What is the 'range' (max distance I can expect) of your HR-IXP and HR-WRAP products?
It will depend on antennas used, frequency used, obstructions and interference, channel congestion, antennas, weather, etc. Typically you will have a higher gain antenna at the “basestation” end and a lower gain antenna on the remote end. For example a 12dBi antenna on the base and 4dBi at the remote. Use our Wireless Distance Calculator to determine the actual range you can expect for your entire system. If you drop down to 900MHz, there are many potential issues, Interference being primary: Every cordless phone and garage door opener operates on this band, as well as family radio service walkie talkie. In order to have meaningful bandwidth you need to use a 10MHz channel width, which represents about half of the total spectrum available. Difficult to avoid interference. However it will get you around trees and over buildings.
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Q2. Where can HauteSpot products be used?
Usage examples:
- Remote CCTV surveillance cameras – Convert existing cameras to wireless IP by putting the HR-IXP-SXP-SD into existing camera housings
- Vehicle mounted surveillance – Convert existing cameras to wireless IP by putting the HR-IXP-SXP-SD into existing vehicle mounted systems
- Covert surveillance – Convert existing cameras to wireless IP by putting the HR-IXP-SXP-SD into existing covert enclosures
- Electronic News Gathering (ENG) – Attach to existing NTSC cameras and stream back to OB van or studio using unlicensed spectrum
- First Responders – stream audio/video from an existing NTSC camera source, such as helmet mounted cameras, over a distance where wires are not feasible
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Q3. We are trying to use your HR-IXPSXPi-SD to enable a remote camera for our sports broadcasts. What frequency should I use?
Where possible you should always use 5GHz first. This means line of sight. If you can make this work you will minimize interference, maximize performance and reduce the number of problems you see.
Then move to 2.4GHz using directional antennas. The more directional the better. This will extend your range, but may be subject to more interference.
Then go to 900MHz. This offers the best non-line of sight performance, but at significantly reduced throughput. Expect your max rate to be 18Mbps under optimal conditions with no interference. Antennas are much larger and more difficult to work with. Interference in urban areas will be an issue.
Best bet is to start with a sight survey and see what you are looking at, then decide band.
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Q4. What data-rate do your HR-IXP and HR-WRAP products support?
HR-IXP supports up to 64mbps for 2.4–6MHz bands. For 900MHz band expect a max of 18mbps. If there is interference or traffic congestion on your band expect lower bandwidths. HR-WRAP supports up to about 20mbps for th 2.4–6MHz bands. For 900MHz band expect a max of 18mbps. If there is interference or traffic congestion on your band expect lower bandwidths.
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Q5. Why is 64mbps 'high throughput' when I can buy a 108mbps solution off the shelf?
Even though you see Wi Fi equipment marketed as '54mbps' or '108mbps' this is a theoretical maximum imposed by the wireless protocol; however the hardware implementing that protocol can't keep up with that performance. Even if the hardware could keep up, there is roughly 40% overhead in the wireless protocols to accommodate for bandwidth/channel mitigation to 'share' the bandwidth resulting in a much lower throughput than what the user expects. Our 64mbps is a 'real world' measured data rate that far exceeds other products that operate within these radio bands.
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Q6. What if I need more than 64mbps?
If you need more bandwidth, then you can use an ethernet switch like at ES-4024 from ZyXel which support 802.3ad link aggregation and a second pair of HR-IXPSXP units to create a second link and double your bandwidth.
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Q7. What makes your HR-IXP products 'better' or 'different' than 802.11 Wi Fi products?
- Higher 'real world' throughput because we have less overhead and a real network processor
- Better streaming performance, because we have eliminated interruptions with our Haute Line wireless protocol. Interruptions cause jitter that disrupts streams
- Flexible radio modules allow for different frequencies of operation
- Driver supports variable channel width, allowing for more channels than 802.11 or wider channels for better performance
- Our Haute Route OS supports many innovative capabilities, including a single management interface for all system features
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Q8. Does your unit support HD input? HDSDI or analog HD input?
Our wireless bridges use Ethernet only, but, you can combine it with the XVD TX2000. This makes a fairly small, portable solution. We have tested our bridges with XVD and it works flawlessly. We currently have a MPEG2 D1 (720x480) at 30fps solution which is fully integrated, and expect to have an HD solution later this year.
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Q9. What is the 'latency' of your IXP-SXP-SD encoder solution?
Currently this product is in beta and the latency is between 1 and 2 seconds (regardless of using software decoder or the Amninet hardware decoder). We are looking at reducing this.
Note: if latency is an issue, you can use an external encoder (ie XVD's SD or HD solution which has a latency of around 500ms or less) with our HR-IXP-SXP point to point solution.
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Q10. How many IXP-SXP-SD encoders can exist on a channel?
At D1 (704x480) @ 30fps 3–4mbps is 'good' quality and 6–7mbps is 'broadcast quality'. Assuming your using 5.8GHz with the proper environment (no interference etc) to yield 63mbps, you should be able to have 8 or so encoders co-exist on a single network channel.
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Q11. I like the high-throughput and low-jitter benefits of the IP point to point link HR-IXP-SXP product, but I really want a point to multipoint solution.
We are working on an an multipoint hub for this purpose – expected to release by the end of 2007.
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Q12. Using an external IP webcam(s), how many cameras can exist?
HR-WRAP – In Wi-Fi infrastructure mode (where an IP camera is a Wi-Fi 'client') after about 3 clients at 4mbps (its a combination of number of clients and bandwidth) you start getting contention on the channel resulting in jitter (which you can attempt to compensate for by more buffering).
IXP-SXP - Point to point link product using our Haute Line protocol reduces this jitter resulting in more clients at higher resolutions assume this to increase by a few clients.
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Q13. What FCC certifications exist for your HR-IXP and HR-WRAP products?
Our modular router platforms are certified as Class B personal computers and peripherals (part 2.906 47 CFR) which use radio modules which have been fully certified under FCC Modular Device Certifications (part 15.237 47 CFR). They are labeled following the guidelines for Declaration of Conformity.
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Q14. Are WLANs secure?
Yes, WLANs are highly secure. Because wireless technology has roots in military applications, security provisions have long been designed into wireless devices and wireless LANs are typically more secure than most wired LANs. WLANs use Direct Sequence Spread Spectrum (DSSS) technology, which is extremely resistant to corruption, interference, jamming, and detection. In addition, all wireless users on your network can identify themselves with a system ID that prevents unauthorized users from gaining access. Users with particularly sensitive data can enable Wired Equivalent Privacy (WEP), which further encrypts the signal and verifies the data with an electronic "security key". In general, individual nodes must be security-enabled before participating in network traffic. 802.11b WLANs may use 40-bit encryption along with user authentication to provide a high degree of network security. It is virtually impossible for unintended receivers and eavesdroppers to listen in on wireless LAN traffic.
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Q15. What is the transmission coverage of WLAN products?
Radio Frequency (RF) average range, especially in indoor environments, is a function of product design, including transmitted power and receiver design, interference, and propagation path. Interactions with typical building objects, including walls, metal, and even people, can affect how energy propagates, and thus what range and coverage a particular system achieves. Wireless LAN systems use RF because radio waves can penetrate many indoor walls and surfaces. The range or radius of coverage for typical WLAN systems varies up to 450 feet (150 meters, in open environment) depending on the number and types of obstacles encountered. Coverage can be extended, and freedom of true mobility and roaming can be provided for a greater area through the use of multiple access points.
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Q16. When do I need an Access Point?
Access points are required for network access but not for Ad-hoc (or peer-to-peer) connections. A wireless network only requires an access point when connecting notebook or desktop computers to a wired network. Some important advantages make access points a valuable addition to your wireless network, with or without a wired network. First, a single access point can nearly double the range of your wireless LAN compared to a simple peer-to-peer (ad-hoc) network. Second, the wireless access point acts as a traffic controller, directing all data on the network, allowing wireless clients to run at maximum speed. Finally, an access point can be your central connection to the outside world, providing Internet sharing.
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Q17. How many users can a WLAN system support?
The number of users is virtually unlimited. The number of users can be expanded simply by adding network access points. By introducing overlapping access points, set at different frequencies (channels), the wireless network can expand to accommodate additional simultaneous users in the same area. Up to three overlapping channels can be used concurrently without interference, which effectively triples the number of supported network users. Similarly, the WLAN can support more users by installing additional access points in various locations in the building. This increases the total number of users and allows roaming throughout the building or across the campus.
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Q18. How many simultaneous users can a single access point support?
The number of simultaneous users that an access point can support is virtually unlimited. However, 11Mbps bandwidth is shared among users on a WLAN as with wired network connections, so the number of simultaneous users that an access point can support depends primarily on the amount of data traffic encountered (heavy downloads and uploads vs. light).
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Q19. What is HauteSpot's WLAN product warranty?
HauteSpot offers one (1) year product warranty for hardware manufactured by HauteSpot. HauteSpot Networks Corporation also sells the products of reputable manufacturers under their respective brand or trade names. HauteSpot Networks Corporation makes no express or implied warranty as to such goods. Customer remedies for defects of goods are subject to any limitations contained in their manufacturer's terms and conditions to HauteSpot Networks Corporation and the provisions of the manufacturer's warranty, either or both of which will be furnished upon request. HauteSpot Networks Corporation is not responsible for any warranty-related issues. Please visit our site for term and condition http://www.hautespot.net/support/HauteSpot_TERMS_OF_SALE_AND_POLICIES.html#_Toc135817240
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Q20. How do I reset the EOC-3220 / EOC-3220 EXT / EOC-3220+ back to factory default settings?
An RS-232 null modem serial cable is required for this procedure.
| 1. |
Connect the EOC-3220 to your computer with a null modem serial cable. |
| 2. |
Start a HyperTerminal session: Click Start and then select Programs -> Accessories -> Communications -> HyperTerminal. |
| 3. |
After the HyperTerminal window appears:
a. Give this new connection a name. Ex: EOC-3220.
b. Select correct COM port. Ex:COM1.
c. Set baud rate as "38400", data bits "8", parity "none", stop bits "1", and flow control as "None". Then press “OK” to bring up the HyperTerminal window. |
| 4. |
Wait until the "#" is displayed in the HyperTerminal window. |
| 5. |
Type "flash reset", then hit enter. |
| 6. |
Type "reboot", then hit enter. After the device reboots, all settings will be at factory default. |
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Q21. What are some of the applications of wireless LANs?( or Who is the target end user for wireless LAN?
The following describe some of the many applications made possible through the power and flexibility of wireless LANs:
| Difficult-to-wire environments |
There are many situations where wires can not or not easily be laid. Historic buildings, older buildings, open areas and across busy streets make the installation of LANs either impossible or very expensive. |
| Temporary workgroups |
Consider situations in parks, athletic arenas, exhibitions, disaster-recovery, temporary office and construction sites where one wants a temporary WLAN established and removed. |
| The ability to access real-time information |
Doctors/nurses, point-of-sale employees, and warehouse workers can access real-time information while dealing with patients, serving customers and processing information. |
| Frequently changed environments |
Show rooms, meeting rooms, retail stores, and manufacturing sites where frequently rearrange the workplace. |
| Small Office and Home Office (SOHO) networks |
SOHO users need a cost-effective, easy and quick installation of a small network. |
| Wireless extensions to Ethernet networks |
Network managers in dynamic environments can minimize the overhead caused by moves, extensions to networks, and other changes with wireless LANs. |
| Wired LAN backup |
Network managers implement wireless LANs to provide backup for mission-critical applications running on wired networks. |
| Training/Educational Facilities |
Training sites at corporations and students at universities use wireless connectivity to ease access to information, information exchanges, and learning. |
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