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La Habra ?WIFI installation contractor

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?WAN / LAN / WLAN installation?

WiFi- Wireless Installation?
WiFi Wireless Deployment.

The wireless networking market is growing rapidly as businesses discover the productivity benefits of going wire-free. The increased mobility that WiFi networks offer has proved beneficial in operations throughout manufacturing facilities, warehouses, transportation depot, hotels, airports, hospitals, colleges, large enterprises, convention centers cities ?as well as rural areas. Within the corporation, conference rooms, public areas, and branch offices constitute ideal venues for wireless LANs (WLANs).

?The Vancouver School District plans to start installing wireless internet service in some schools, despite a warning by the World Health Organization that the signals could be a possible carcinogen. And despite a?long list of parent-driven organizations?that are trying to get Wi-Fi banned from public schools.

School Board Chair Patti Bacchus said the service is being installed because the district is out of step with an educational technology that is increasingly conducted online and with students armed with laptops and smartphones.

The initial focus will be on secondary schools but a request for proposals issued last month shows the school district is seeking a contractor to provide service for 100 sites.

Last spring the World Health Organization classified wireless technology as possibly carcinogenic, leading?two Ontario private schools to shut off their wireless services.

The service could be installed as early as next month in some schools.

posted from:http://www.techvibes.com/blog/vancouver-school-district-to-start-installing-wi-fi-despite-protests-2011-10-14

With 802.11n the best practice recognized in the industry is to install the access points (AP) in the room. Installing 802.11n wireless network access points in the hallway introduces a number of issues that can be avoided by just installing them in the room where the wireless clients most likely are found.

The reasons for installing access points in the room and the not the hallways are;

• Interference?– To avoid co-channel and adjacent channel interference caused by the efficiencies of 802.11n and MIMO. Too much co-channel or adjacent channel interference will degrade the performance of your wireless network. Installing APs in the room uses walls to buffer the signal to reduce these types of interference.

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• Devices?– Low power mobile devices like iPads, Chromebooks, smart phones, tablets, etc… do not have the transmit capabilities that laptops have and as a result need the AP to be closer to them. i.e. – in the room!

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• Automated RF management?– As a side effect of the ability for 802.11n at getting signal everywhere access points will decrease their power levels to avoid inducing additional interference into the environment. This results in shrinking RF coverage and reduced signal at the clients. Putting the AP in the room eliminates this issue completely.

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• 5 Ghz?– More and more devices are coming with 5Ghz chipsets for wireless now and will continue in the future because 2.4GHz wireless is so overcrowded. The downside is that 5GHz cannot transmit through building materials as far. This is resolved by installing the AP in the room where the signal does not have to go through building materials or as many as it would in a hallway.

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Hallway deployment shows less coverage of rooms. In room deployment would provide better.

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*Note - In some situations however an in hallway installation can work. Typically this is achievable in an office environment where coverage is the design goal and rarely would two APs be too close together or ?a wall would not be dividing them.

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On the wall or on the ceiling?

Manufacturers design their APs to be installed in specific locations. Some manufacturers claim their APs can be installed in either location. However, this is generally a compromised solution because no AP or antenna is ideal for all locations.

In our experience it is typically the ceiling location that benefits the end users the most. There are fewer obstructions to deal with when the RF signal is coming from above and it provides the best direct path to the end user devices. With that said we also realize and have encountered areas where the ceiling option was not achievable. For these installations we chose another access point from the same manufacturer with an appropriate antenna type and modified where we install them on the walls. We might choose two adjacent walls to mount the APs so that the wireless end user is able to have a direct signal from one or the other APs in the environment.

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Antenna type is important in knowing where the AP will be located and what the intended coverage is.

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Above or below the ceiling?

Our recommendation to this question is almost always going to be below the ceiling. This is based on experience and best practice recommendations from the manufacturers that we work with. Here are some reasons why you want to place the AP below ceiling level in your installation;

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• Obstructions?– above the ceiling there are almost always obstructions that impair the function
  of the AP. The obstructions? found above
  ceiling are HVAC ducts, waste and water pipes, electrical conduit, metal light
  fixtures, fire doors, and a plethora of objects too numerous to list. All of
  these objects have the same behavior and that is they alter the APs RF signal
  and impede its’ ability to give you the coverage and performance you require.

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• Environmental?– above the ceiling also introduces the AP into an environment that may not be favorable to its’ required operations. These variables could be an unventilated
  environment which would cause the AP to run hot which is never good for
  electronics. The environment might be extremely dusty which is also not good
  for electronics. There could also be unshielded electrical wiring above ceiling
  which can interfere with the signal as well as data in the AP.

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Below we compare wired and wireless networking in five key areas:

• ease of installation
• total cost
• reliability
• performance
• security
  
  About Wired LANs
• Wired LANs use Ethernet cables and networkadapters. Although two computers can be directly wired to each other using an?Ethernet crossover cable, wired LANs generally also require central devices like?hubs,?switches, or?routers?to accommodate more computers.

  For dial-up connections to the Internet, the computer hosting the?modem?must run?Internet Connection Sharing?or similar software to share the connection with all other computers on the LAN.Broadband routers?allow easier sharing of cable modem or DSL Internet connections, plus they often include built-in?firewall?support.

  Installation

  Ethernet cables must be run from each computer to another computer or to the central device. It can be time-consuming and difficult to run cables under the floor or through walls, especially when computers sit in different rooms. Some newer homes are pre-wired with?CAT5?cable, greatly simplifying the cabling process and minimizing unsightly cable runs.

  The correct cabling configuration for a wired LAN varies depending on the mix of devices, the type of Internet connection, and whether internal or external?modems?are used. However, none of these options pose any more difficulty than, for example, wiring a home theater system.

  After hardware installation, the remaining steps in configuring either wired or wireless LANs do not differ much. Both rely on standard?Internet Protocol?and?network operating systemconfiguration options. Laptops and other portable devices often enjoy greater?mobility?in wireless home network installations (at least for as long as their batteries allow).

  Cost

  Ethernet cables, hubs and switches are very inexpensive. Some connection sharing software packages, like ICS, are free; some cost a nominal fee. Broadband routers cost more, but these are optional components of a wired LAN, and their higher cost is offset by the benefit of easier installation and built-in security features.