Page 19 - Blog

Choosing the Right WiFi Antenna

To identify the right antenna for your WiFi application it is important to note the differences in omnidirectional and directional antennas. Either the signal is radiating out in every direction, which is called omnidirectional, or there is a reflective surface to focus the signal in a specific direction, which is called directional.

Depending on your primary application there are ceiling, panel, Log Periodic/Yagi, fixed omni, and rubber duck antennas. These antennas operate at different frequencies and gains depending on whether they are radiating signals in omnidirectional or directional reach.

Here are some applicable network scenarios where these antennas would be put into use:

To connect two buildings:

To connect two buildings on the same WiFi network, you will need a directional antenna to create a point-to-point wireless link. A Yagi or Parabolic Grid antenna would be mounted to the top of each building and point at each other inline.

What You Need to Consider When Purchasing Antennas

When buying an antenna there several factors that go into finding the right solution for your network. Without proper consideration, you will not achieve the desired connectivity, which can result in a loss of time and money.

The basic function of an antenna is to take a signal traveling through a cable and convert it to a signal that can travel through the air. The most common applications for antennas are Wi-Fi/WLAN networks, the “Internet of Things” (IoT), and in public safety/first responder systems.

Since there are many different types of antennas, these are a few of the major items to consider before you buy an antenna:

• What is the application?
• What frequency do you need?
• Is there a certain gain or square footage of coverage you need?
• Do you want coverage everywhere, or in at a specific point?
• Which connector types do you need?

Here are a few of the most common questions to help you understand which antenna works best for your

5 Things to Consider When Purchasing Power Cords

When purchasing power cables, knowing what qualities to look out for will help you save time, money, and stress.

1. Plug & Form Factor

Identifying which power cords you need can be confusing. There are dozens of different NEMA & IEC jacks and plugs. The problem is even more compounded when you add-in international plugs. We have created this helpful chart to help you identify which power cord you need.

Another consideration beyond fit is the orientation of the plug. Space-saving right, left, up, or down angled plugs can help you minimize space, promote proper airflow, and prevent accidental disconnects.

2. Length: Longer is Not Better

After deciding which plug or jack (inlet or outlet) you need, you need to decide on the length. This is especially true for data center applications. Excess cord leads causes restriction of airflow, causing cooling systems to work harder. It also takes more energy to push electricity over longer cables.

Ethernet Jacket Types 101

Ethernet cable jackets are made from various materials and carry different ratings assigned by the NEC. Let’s run through some commonly asked questions about these materials and NEC ratings to help answer some common questions about which material and jacket rating is used for most installations:

What is a PVC jacket?

Polyvinyl Chloride is the backbone material in most ethernet cable jackets. It is a high strength and flexible material, which makes it a go-to jacket for most ethernet cabling. PVC is the most common material found in the below jacket ratings. 

What is a PE jacket?
Polyethylene is most common with outdoor rated jackets. They are good at moisture and overall weather resistance. There is also a CPE jacket (Chlorinated Polyethylene), which is even better at oxidation, weather/UV, heat, oil, and flame resistance.  PE is best used for any outdoor ethernet runs, while CPE is ideal for direct burial.

What is a CM rated jacket?

Communications Multipurpose.

Data Line Surge Protection

You don’t need a string of statistics to understand lightning is powerful, unpredictable, and strikes often. Take my word for it. I’ve read the “fun” facts. There is an astounding number of opportunities for mother nature to completely fry your business and home networks from both direct and indirect lightning strikes. But you can’t blame lightning for damage to modems, motherboards, serial ports, and other LAN equipment. You can’t shake a fist at mother nature for network downtime leading to a loss of business, expensive repairs/replacements, and corrupted data. What you can, and should, do is think ahead and arm your network with data line surge protectors to help secure highly integrated systems so a kiss from the skies doesn’t spell disaster for sensitive telecom and data transmission devices.

Without getting into the nitty gritty of attractive terminology like “fast diode clamp array,” and “terminal differential gas discharge tubes,” at it’s most rudimentary

1 Hour of Data and Bandwidth Usage

As offices and schools head home, competition for bandwidth is intensifying.  A usually smooth operating home network can be ground to a halt under new data demands. Running multiple video conference calls, streaming binge-worthy TV,  listening to music, and streaming a lecture can cause all parties to suffer extra loading times or lower quality.

To help you understand the most demanding activities, here is a list of the data usage rates for some of the most popular work from home activities.

Work Activities

Email <1 MB an hour.

Email is one of the lightest weight activities you can do.  While usage varies based on attachments, typically, text email takes less than one megabyte per hour.

Web Browsing 60MB an hour.
Browsing the web is a multi-media experience as you read text, graphics, and video.  Each element has to be downloaded, which takes up data.  For typically mixed usage internet browsing, you will use around 60 MB an hour.

Dealing with Impedance Mismatching

When selecting coax cable or certain types of coaxial connectors and adapters there are a variety of factors to consider such as jacket type, shielding, and loss.  Today we want to focus on impedance, specifically what to do if you encounter differing impedances.

In coax, there are two categories of impedance 50 Ohm and 75 Ohm.   Ohm is the measurement of electrical resistance.  The physical properties of the cable determine if it's impedance.  The hallmarks of 50 Ohm coax are high power handling and low attenuation and are used in RF applications.  75 Ohm coax is designed for low power, signal transmission efficiency, which is typically used in audio/video applications.

An easy-to-overlook aspect of cable choice is impedance.  In alternating current (AC) circuits, impedance (measured in ohms) represents how effectively voltage may be transmitted through the cable, before meeting the counterforces of resistance, inductance, and capacitance.

MPO Fiber Optics

As the need for bandwidth speed outpaces the capabilities for physical expansion, networks are evolving by offering higher density higher throughput solutions. This allows for increased data rate performance without having to invest in new physical locations. MPO cables provide high-density termination capabilities and are an ideal choice for delivering the fastest link and enabling high-speed interconnects.

Multi-fiber push-on connectors (MPO) are multi-fiber cables terminated in a single connector. They are typically available in 8, 12 or 24 fibers and are common for data center and LAN en- environments. They ease cable management and allow faster deployment in duplex 10 Gig fiber applications.

You may also see the term MTP used interchangeably with MPO connectors, but the term MTP is a registered trademark of US Conec to describe their brand’s offered connector. Moving forward in this article, we will be using the term MPO, which offers the same benefits.

MPO

Work From Home Solutions

Navigating the new work environment, we are all experiencing is challenging enough; connecting your equipment shouldn’t be. But we have all experienced frustration as the ports on our laptop don’t mate with our monitor, or are cable isn’t long enough to reach, or are new “co-workers” ala our pets and children interrupt our conference call. We can’t help you with everything, but navigating connectivity issues is our specialty.

Our sales and support team are here to help you find the tools you’ll need to expand your workspace, connect your laptop, adapt old equipment to new equipment, remotely connect to your office network while powering everything from your peripherals to your PC. No experience is required on your end. Just send us some pictures, and we can quickly identify what you need.

Here are a few of the most popular work from home solutions.

Mult-Port Adapters

Multi-Port adapters take a single port and adapt it to more than one port. This is very common

The Importance of Cybersecurity

November 30th marks Computer Security Day, and in today’s world, technology plays a large role in most of what we do both professionally and personally. Much of our private information is shared electronically on various websites. It’s important to remember that the data stored on our computers and mobile devices must be kept secure and safe. However, taking steps to ensure our private materials doesn’t have to be overwhelmingly daunting. 

Here are four tips to ensure you’re up-to-date when it comes to protecting yourself online.

Always use strong passwords.

You’ve heard it before: it’s not wise to use password as a password. It’s also not in best practice to use words, dates, or phrases that others might be able to guess, such as the names of your children, your anniversary, or your address. Using these elements in your password opens your information to being hacked or stolen. Strong passwords require a combination of letters, numbers, and symbols that