EthernetBlog by Ethernet Extension Experts

Ethernet Extension Experts Adds 350 PoE Injector to ALL 820 Ethernet Extender Kits
LAS VEGAS, NV, November 23, 2009 — Ethernet Extension Experts (or “E3”), designer and manufacturer of industrial Ethernet extension solutions, announces a sweeping upgrade to its entry-level Ethernet extender, the Enable-IT 820. The Enable-IT 820 Single-Line Ethernet Extender kit now comes standard with a free 48v Power over Ethernet (PoE) injector, thereby making it the lowest-cost Ethernet Extender with PoE in existence. For one low price, companies can now quickly deploy PoE devices like IP cameras and WiFi access points to distances way beyond ethernet’s distance limit of just 328 feet by capitalizing
on their often underutilized telco or CAT-rated wiring.
The 820 Single-Line Ethernet Extender with PoE is an elegant, plug-and-play Ethernet extension solution that drives voice, data, and power over ethernet out to 900 feet or 275 meters. What’s more, no power is required at the remote end and there is no firmware to upgrade or manage. These units can be installed in one easy step with standard RJ-45 Ethernet jacks; just insert your wiring and GO.
“It’s not only simple to use, its quality and
technology are unmatched in the industry,” said David Conners, E3’s Director of Product Development. “Unlike other –much more expensive- LREs on
the market today, the 820 is the only extender to support live voice transparently.”
“Now add to that the ability to transmit up to 48v of power (PoE) without any additional cables or cost. That’s yet another ability our competitors can’t boast,” said Felipe Tobilla, Technical Support Engineer. “Others can try to cost cut inferior products all they want, but you simply can’t fake best-in-class quality, performance, and support.”
The 820 Single-Line Ethernet Extender with PoE can be purchased at www.EthernetExtender.com. It retails for $399 and includes two LRE units, a Power over Ethernet (PoE) injector, two 10’ ethernet patch cords, a country-specific wall power adapter and an installation manual. Quantity discounts are available and every purchase comes with free same-day shipping and a 45-day money-back guarantee.
Ethernet Extension Experts (Enable-IT) is a pioneer OEM manufacturer of cost cutting plug-and-play Ethernet Extension solutions for the hospitality, commercial office, and multi-unit (residential or commercial) marketplace. They offer a wide range of solutions to extend ethernet networks, for every data type imaginable, up to 20x beyond the stifling IEEE/Ethernet distance limit of just 328 feet (or 100 meters). Their seamless solutions do this over your own –often forgotten- traditional copper-pair (e.g. telephone) wiring, effectively saving you thousands in overhead and security measures.

Waterproof Enclosures

Suitable waterproof enclosures come in many varieties. Metal or plastic may be used to create a watertight container for outdoor embedded equipment.

Of course, equipment needs power to work, and will likely need to connect to an antenna and Ethernet cable. Each time you pierce a watertight enclosure, you provide another potential place for water to seep in.

The National Electrical Manufacturers Association (NEMA) provides guidelines for protection of electrical equipment from rain, ice, dust, and other contaminants. An enclosure with a rating of NEMA 3 or better is suitable for outdoor use in a fair climate. A NEMA 4X or NEMA 6 provides excellent protection, even from hose driven water and ice. For fixtures that pierce the body of an enclosure (such as cable glands and bulkhead connectors), NEMA assigns an ingress protection (IP) rating. An ingress protection rating of IP66 or IP67 will protect these holes from very strong jets of water. A good outdoor enclosure should also provide UV protection to prevent breakdown of the seal from exposure to the sun, as well as to protect the equipment inside.

Of course, finding NEMA rated enclosures may be a challenge in your local area. Often, locally available parts can be repurposed for use as enclosures. Rugged plastic or metal sprinkler boxes, electrical conduit housings, or even plastic food containers can be used in a pinch. When piercing an enclosure, use quality gaskets or o-rings along with a cable gland to seal the opening. UV stabilized silicone compound or other sealant can be used for temporary installations, but remember that cables flex in the wind, and glued joints will eventually weaken and allow moisture to seep in.

You can greatly extend the life of a plastic enclosure by providing some protection from the sun. Mounting the box in the shade, either beneath existing equipment, solar panel, or thin sheet of metal specifically for this purpose, will add to the life span of the box as well as the equipment contained inside.

Before putting any piece of electronics in a sealed box, be sure that it has minimal heat dissipation requirements. If your motherboard requires a fan or large heat sink, remember that there will be no airflow, and your electronics will likely bake to death on the tower. Only use electronic components that are designed to be used in an embedded environment.

Enclosures are given a NEMA rating according to the types of applications the enclosure serves.

• NEMA 1
  NEMA 1 industrial enclosures are typically used for protecting controls and terminations from objects and personnel. This style of enclosure, while offering a latching door, does not have a gasketed sealing surface. NEMA 1 enclosures are used in applications where sealing out dust, oil, and water is not required. Motor start/stop stations are often housed in NEMA 1 enclosures.
• NEMA 3R
  NEMA 3R electrical enclosures are typically used in outdoor applications for wiring and junction boxes. This style of weatherproof enclosure provides protection against falling rain, sleet, snow, and external ice formation. Indoors they protect against dripping water. This style of enclosure does not have a gasketed sealing surface. Some models have hasps for padlocking.
• NEMA 4
  NEMA 4 industrial enclosures are used in many applications where an occasional washdown occurs or where machine tool cutter coolant is used. They also serve well in applications where a pressurized stream of water will be used. NEMA 4 enclosures are gasketed and the door is clamped for maximum sealing. They have continuous hinges, mounting feet, and padlock hasps. NEMA 4 enclosures are available in sizes from small wall mounts to two-door floor mount models.
• NEMA 4X
  NEMA 4X enclosures are typically made of stainless steel or plastic. These NEMA enclosures are used in harsher environments than standard NEMA 4 units. Applications where corrosive materials and caustic cleaners are used necessitate the use of a NEMA 4X enclosure. Applications include food, such as meat/ poultry processing facilities, where total washdown with disinfectants occur repeatedly and petro-chemical facilities, including offshore petroleum sites. NEMA 4X is used when protection from the worst environments is required. NEMA 4X industrial enclosures are available in sizes from small wall mounts to two-door floor mount models. Hubbell Wiegmann metal NEMA 4X enclosures are made of 304 stainless steel.
• NEMA 12
  NEMA 12 enclosures are designed to prevent the ingress of dust, water, and oil. NEMA 12 enclosures are most often used for indoor applications of automation control and electronic drives systems. Some examples are packaging, material handling, non-corrosive process control, and manufacturing applications. Gasketed doors seal the enclosure’s contents from airborne contaminants and non-pressurized water and oil. These NEMA enclosures are available in sizes from small wall mounts to two-door floor mount models.
• NEMA 4 & 12
  Hubbell Wiegmann’s “412” enclosures combine the attributes of NEMA 4 and NEMA 12 in an attractive, clean line enclosure. This enclosure features reversible doors for left or right opening, concealed hinges, and rear mounting holes for a more attractive installation. Optional mounting feet are available for conventional wall mounting. Wiegmann’s 412 enclosures are available in wall mount models up to 60″ x 36″.

How to wire your own Ethernet cables and connectors.What You Need:

Required:

• Cable – bulk Category 3, 5, 5e, or 6 cable
• Wire Cutters – to cut and strip the cable if necessary
• RJ45 Male blank Plugs
• RJ45 Crimp Tool
  
• Country specific telephone Punch Down Tool (if working with structured phone blocks)

Recommended:

• Wire Stripper
• Cable Tester (continuity or complex LAN tester)

About the Cable:

You can find bulk supplies of the cable at many computer stores or most electrical or home centers. You want UTP (Unshielded Twisted Pair) Category 3 or 5 cable for basic 10/100 functionality. You want CAT 5e for gigabit (1000BaseT) operation and CAT 6 or 7 gives you a measure of future proofing. Bulk cable comes in many types, there are 2 basic categories, solid and braided cable. Braided cable tends to work better in patch applications for desktop use. It is more flexible and resilient than solid cable and easier to work with, but really meant for shorter lengths. Solid cable is meant for longer runs in a fixed position. Plenum rated cable must be used whenever the cable travels through an air circulation space. For example, above a false ceiling or below a raised floor. It may be difficult or impossible to tell from the package what type of cable it is, so peal out an end and investigate.

Here is what the internals of the cable look like:

Internal Cable Structure and Color Coding

Inside the cable, there are 8 color coded wires. These wires are twisted into 4 pairs of wires, each pair has a common color theme. One wire in the pair being a solid or primarily solid colored wire and the other being a primarily white wire with a colored stripe (Sometimes cables won’t have any color on the striped wire, the only way to tell which is which is to check which wire it is twisted around). Examples of the naming schemes used are: Orange (alternatively Orange/White) for the solid colored wire and White/Orange for the striped cable. The twists are extremely important. They are there to counteract noise and interference. It is important to wire according to a standard to get proper performance from the cable. The TIA/EIA-568-A specifies two wiring standards for an 8-position modular connector such as RJ45. The two wiring standards, T568A and T568B vary only in the arrangement of the colored pairs. Tom writes to say “…sources suggest using T568A cabling since T568B is the AT&T standard, but the US Government specifies T568A since it matches USOC cabling for pairs 1 & 2, which allows it to work for 1/2 line phones…”. Your choice might be determined by the need to match existing wiring, jacks or personal preference, but you should maintain consistency. I’ve shown both below for straight through cabling and just T568B for cross over cabling.

About RJ45 Plugs and Jacks:

The RJ45 plug is an 8-position modular connector that looks like a large phone plug. There are a couple variations available. The primary variation you need to pay attention to is whether the connector is intended for braided or solid wire. For braided/stranded wires, the connector has sharp pointed contacts that actually pierce the wire. For solid wires, the connector has fingers which cut through the insulation and make contact with the wire by grasping it from both sides. The connector is the weak point in an Ethernet cable, choosing the wrong one will often cause grief later. If you just walk into a computer store, it’s nearly impossible to tell what type of plug it is. You may be able to determine what type it is by crimping one without a cable.

RJ45 jacks come in a variety styles intended for several different mounting options. The choice is one of requirements and preference. RJ45 jacks are designed to work only with solid cable. Most jacks come labeled with color codes for either T568A, T568B or both. Make sure you end up with the correct one.

Here is a diagram and pin out:

RJ45 Plug and Jack Pin Out

Ethernet Cable Pin Outs:

There are two basic cable pin outs. A straight through cable, which is used to connect to a hub or switch, and a cross over cable used to operate in a peer-to-peer fashion without a hub/switch. Generally all fixed wiring should be run as straight through. Some
Ethernet interfaces can cross and un-cross a cable automatically as needed, a handy feature.

Standard, Straight-Through Wiring (both ends are the same):

RJ45 Pin	Wire Color (T568A)	Wire Diagram (T568A)	10Base-T 100Base-TX	1000Base-TX
1	White/Green		Transmit+	BI_DA+
2	Green		Transmit-	BI_DA-
3	White/Orange		Receive+	BI_DB+
4	Blue		Unused	BI_DC+
5	White/Blue		Unused	BI_DC-
6	Orange		Receive-	BI_DB-
7	White/Brown		Unused	BI_DD+
8	Brown		Unused	BI_DD-

Straight-Through Cable Pin Out for T568A

RJ45 Pin	Wire Color (T568B)	Wire Diagram (T568B)	10Base-T 100Base-TX	1000Base-TX
1	White/Orange		Transmit+	BI_DA+
2	Orange		Transmit-	BI_DA-
3	White/Green		Receive+	BI_DB+
4	Blue		Unused	BI_DC+
5	White/Blue		Unused	BI_DC-
6	Green		Receive-	BI_DB-
7	White/Brown		Unused	BI_DD+
8	Brown		Unused	BI_DD-

Straight-Through Cable Pin Out for T568B

Cross Over Cable (T568B):

RJ45 Pin # (END 1)	Wire Color	Diagram End #1	RJ45 Pin # (END 2)	Wire Color	Diagram End #2
1	White/Orange		1	White/Green
2	Orange		2	Green
3	White/Green		3	White/Orange
4	Blue		4	White/Brown
5	White/Blue		5	Brown
6	Green		6	Orange
7	White/Brown		7	Blue
8	Brown		8	White/Blue

Cross Over Cable Pin Outs

+Note: The cross over cable layout is suitable for 1000Base-TX operation, all 4 pairs are crossed.

How to wire Ethernet Patch Cables:

1. Strip off about 2 inches of the cable sheath.
2. Untwist the pairs – don’t untwist them beyond what you have exposed, the more untwisted cable you have the worse the problems you can run into.
3. Align the colored wires according to the diagrams above.
4. Trim all the wires to the same length, about 1/2″ to 3/4″ left exposed from the sheath.
5. Insert the wires into the RJ45 plug – make sure each wire is fully inserted to the front of the RJ45 plug and in the correct order. The sheath of the cable should extend into the RJ45 plug by about 1/2″ and will be held in place by the crimp.
6. Crimp the RJ45 plug with the crimper tool.
7. Verify the wires ended up the right order and that the wires extend to the front of the RJ45 plug and make good contact with the metal contacts in the RJ45 plug
8. Cut the cable to length – make sure it is more than long enough for your needs.
9. Repeat the above steps for the second RJ45 plug.

How to wire fixed Ethernet Cables:

1. Run the full length of cable in place, from endpoint to endpoint, making sure to leave excess.
2. At one end, cut the wire to length leaving enough length to work, but not too much excess.
3. Strip off about 2 inches of the cable sheath.
4. Align each of the colored wires according to the layout of the jack.
5. Use the punch down tool to insert each wire into the jack.
6. Repeat the above steps for the second RJ45 jack.

If a cable tester is available, use it to verify the proper connectivity of the cable. That should be it, if your cable doesn’t turn out, look closely at each end and see if you can find the problem. Often a wire ended up in the wrong place or one of the wires is making no contact or poor contact. Also double check the color coding to verify it is correct. If you see a mistake or problem, cut the end off and start again. A cable tester is invaluable at identifying and highlighting these issues.

When sizing cables remember that an end to end connection should not extend more than 100m (~328ft). Try to minimize the cable length, the longer the cable becomes, the more it may affect performance. This is usually noticeable as a gradual decrease in speed and increase in latency.

Notes:

IEEE 802.3af Power over Ethernet (PoE):

Power over Ethernet has been implemented in many variations before IEEE standardized 802.3af. 802.3af specifies the ability to supply an endpoint with 48V DC at up 350mA or 16.8W. The endpoint must be capable of receiving power on either the data pairs [Mode A] (often called phantom power) or the unused pairs [Mode B] in 100Base-TX. PoE can be used with any Ethernet configuration, including 10Base-T, 100Base-TX and 1000Base-T. Power is only supplied when a valid PoE endpoint is detected by using a low voltage probe to look for the PoE signature on the endpoint. PoE power is typically supplied in one of two ways, either the host Ethernet switch provides the power, or a “midspan” device is plugged in between the switch and endpoints and supplies the power. No special cabling is required.

RJ45 Pin #	Wire Color (T568A)	Wire Diagram (T568A)	10Base-T 100Base-TX	PoE
1	White/Green			Mode A +
2	Green			Mode A +
3	White/Orange			Mode A -
4	Blue		Positive +	Mode B +
5	White/Blue		Positive +	Mode B +
6	Orange			Mode A -
7	White/Brown		Negative -	Mode B -
8	Brown		Negative -	Mode B -

Power over Ethernet Power Delivery

Cable Category Details:

Increasing category levels are backward compatible.
Manufacturers will often test and certify their cable well beyond the standards.
*10GBase-T should work on Cat6, but to get the full 100m range, Cat 6a is required.

linksys_3gv2

Rather than use the standard 3GP services of your mobile phone service provider and likewise speed up that usual WiFi connection you have at home, here is one solution to your problem. Linksys has unveiled a new kind of Ethernet router that may very well go in hand with your default wireless router, the Linksys WRT54G3GV2-ST Mobile BroadBand Router for Sprint EVDO.

Apparently, we have had issues as far as faster and efficient connection using wireless Internet connectivity both at home and in the office. But now, with the proper influx of EVDO solutions, no longer will you have to worry about sharing connection and also worry about the slow connectivity. Linksys has addressed the problem and based on the features of this new Mobile BroadBand Router for Sprint EVDO, it is just a matter of time before business and office owners would be out in the market to purchase one of these new solutions by Linksys.

Even customers with just one computer in a household or office may find the 3GV2 useful if they are currently forced to locate their computer where their EVDO signal is best, rather than where they want to actually use their computer. By using the router where EVDO signal is best, their computer can be located where they want it, or they can use WiFi connection to router and wander aimlessly without affecting EVDO performance.

The 3GV2 is also a great solution for other electronics that can use WiFi or ethernet connectivity to access the internet but cannot directly use an EVDO card or USB modem. Gaming consoles like the Nintendo Wii, Sony Playstations and Microsoft Xbox have no way to directly connect to the internet using EVDO, but customers who utilize a 3G router like the 3GV2 can play online games like World of Warcraft (WoW), and Super Smash Brothers Brawl… among others.

Source

netvanta_1238_poe_fr1

SMB’s have had their share of wanting to advance with technology but apparently the main obstacle here is determining which networking peripherals such as the right Ethernet switches to consider to make their network stay afloat. However, with this new product from ADTRAN, the NetVanta Ethernet switches should be able to provide a new line of possibilities as far as SMB’s requirements for number of ports and higher density layouts. They are said to be priced somewhere in between $595 to $2,895, depending on which among the NetVanta products (NetVanta 1534 and 1534 PoE (with 24 ports), NetVanta 1234 and 1234 PoE (with 24 ports)) would be preferred.

Further, what perhaps makes these products from ADTRAN attractive is that they are power-efficient. The NetVana PoE models offer the ability to be able to power themselves with the use of standard Ethernet cables, something that adheres heavily towards power consumption and conservation today. For most SMBs, this is a great opportunity considering that as far as networking solutions on their end, obtaining quality networking peripherals such as the ones offered by ADTRAN in the market today are sure to be a big boost towards their drive to efficient technology implementation in enhancing current business trends with regards to operations.

“Everyone is really concerned about how much power is being used,” McClain said, a shift from the past when enterprises generally weren’t too worried about this aspect of networking.

As noted earlier, ADTRAN’s new NetVanta switches are geared mostly toward the enterprise market. In particular, Snyder said, the NetVanta line is marketed as customer premises equipment (CPE) for small to medium-sized businesses (SMBs) and distributed enterprises. He defined “small” as a business with 2-100 employees, and “medium” as 100-1,000 employees. Many distributed enterprises run units that fit into the SMB category.

Source

Zeus smiles as an ancient Greek rock quarry get automation assistance using Enable-IT Ethernet Extenders.

Giving Sight to Production Control Visibility

Reducing Manual Labor and Equipment Costs

Increasing Production Output and Philanthropy

Ancient Site propelled into new century on the back of Ethernet Extension Kits

Solutions Used â–º 860 LRE Kit – 100Mbps FD Throughput – worlds fastest Ethernet Extender

Meeting Evolving Production Demand and Growing Business Needs

Improving Performance on the Factory Floor

Reducing Production Downtime

Creating New Value with a High-Performance Extended LAN Solution

Solutions Used

860 LRE Kit – 100Mbps FD Throughput – worlds most popular and fastest Ethernet Extender

820 LRE and PoE Kit – Ethernet Data and PoE Extender – For unpowered remote controls

Meeting Evolving Industry Safety Needs

Improving Performance and Quality of Data

Reducing costs for expendable equipment

Creating New Value with a High-Performance Extended LAN Solution