Metal keypads and serial over Ethernet keypad uses

Many companies also provide a sealing gasket with each keypad. This sealing gasket can be used for any kind of mounting- front or back. This helps to seal out water and dust. The number of keys to be used in the keypad can also be customized. These keys use a LED back lightening. The keys are also available in various sizes and shapes like round or square etc. This makes them apt even for the dark environments. Generally, the standard X-Y matrix is used for the electrical output but other customizations can also be done. Also, most of these metal keypads only use single high speed cable.

Most of the metal keypads are made from stainless aluminium or steel. They are designed in a way that they comply with the safety standards also. Some even come with a tactile sensation so that the physically handicapped people can also use them. Apart from these, these can also be customized to meet any other requirements as well. These are apt for indoor as well as outdoor applications.

A metal keypad can have a key switch lifetime of as high as five million operations. Also, the lettering done is mostly laser engraved which gives it further durability. These can be made to function from -10 degree Celsius to +60 degree Celsius. Many can even work over a much broader range. Many come with an inbuilt tamper switch. Other major feature of metal keypads is that they come with multiple termination and cabling options.

Serial communications are widely used to in industrial automations. Devices like sensors, computers, data loggers etc. can be connected using the serial communications. However, the simple serial communications have several limitations. Some of them are distance, speed, accessibility etc. All these limitations have led to a need for using the serial over Ethernet communications.

Most of the serial based devices can be easily integrated with the Ethernet protocols. In addition to the ease of integration, minimum requirement of processing power and reliability of the connectors further helps to favor these serial over Ethernet communications.

Facts about POE keypads

POE technology has become very popular over the past few years. One reason for it’s popularity can be fact that it helps to integrate data and power across the network cables. This helps to provide flexibility as the integration can be done over the existing network cables and devices like IP phones, cameras etc. using a single network cable.

In addition, if the network is supplied with uninterrupted power supply then continuous operation can be delivered. The elimination of power interruption also helps to decrease the downtime. The POE keypads also give the ability to install endpoints in any location. This helps to provide flexibility and scalability to the networking infrastructure and helps to maximize the growth and efficiency.

Most of the keypads are POE enabled, today. They can share the available power across the switch ports. They have small power supply and are also capable of powering the switch. They can provide power over a number of ports. In fact, many devices that do not allow Power over Ethernet can also use these keypads. A poe splitter can also be used if less than 50 watts is used by the device. It can also be used to connect the keypad to an IP Ethernet network. This helps to separate the power and the data on to two separate cables.

Today’s POE keypads are highly efficient and get easily integrated with the existing networks. They are also called as rugged keypads as they can be installed in all types of climatic conditions. These also allow separation of the power and the data using the wiring closet. This is very efficient and also costs less.

These outdoor keypads can be used over all types of networks. That’s why these are also called as network keypads. These can be integrated with the old as well as the new technologies.

Keypad Display features

Keypads with display are designed for use by the latest generation of users. These can be employed in the most hostile of conditions. Most of these are customizable. From design of the host machine to the color scheme, these keypads can be easily customized. Also, the number of keys and key top legends can be specified. All these features help to make these keypads user-friendly.

Some of the features of these display keypads are:

1. Most of these display keypads are vandal and weather resistant. This makes them apt for use in unsupervised public environments and rugged environments. The construction of these keypads can also be customized to meet the requirements of the specified environment.

2. Nowadays, most of these come with an integrated card reader and writer. However, these are optional. These can be used whenever required.

3. Many manufacturers also provide an illuminated LCD display. Vacuum fluorescent and graphic displays are also offered by many.

4. The data entry method of these rugged keypads is very responsive and rapid. It is also very reliable. No tampering can be done with these keypads.

5. The front plate of these outdoor keypads is made from stainless steel or polymer. This makes them very effective against the rugged environments.

6. These are apt for application in automated teller machines, ticketing machines, control-equipment, vendor machines etc.


These keypads can be configured to suit a wide range of applications. Also, these can be changed from one application to another very easily. A number of options are available that can be availed to make these keypads fully optimum for the required environments. These also come in completely touch-screen format as well as with buttons. The touch screen formats have LEDs installed in them and they illuminate. This also makes them apt for dark environments.

Advanced Access Control Keypad Features

The latest advancement in the access control applications is the digital keyless entry system. These are great for single entry point applications. These keypads can be used in wide range of applications like door locks, automatic gates etc. Each individual is assigned a code and he has to enter that code on the keypad to get access. This way only the authorized personnel are able to get access.

Most of these keypad displays have a backlit keypad that illuminates when in use. These keypads have embedded LEDs that provide the incandescent lighting. The duration of this lighting can also be programmed. The number of access codes to be stored in the keypad can also be programmed. The modern keypads also continue to work properly in case of a power loss as well. There is no effect on the state as these have a non-volatile memory that remains unaffected during the power loss as well and hence, no data is lost.

Most of the modern access control keypads also come with other characteristics like:

1. Timer

2. Sound preferences

3. Security responses for invalid code entry

4. Reprogrammable memory

These keypads do not require a separate programmer. Most of the programming is done at the keypad. Some of the keypads are even able to store more than 500 access codes. These can also be called as rugged keypads as these come with a metal housing that protects the keypad. This housing also helps to seal out the moisture. Also, independent output actions for each access code can be programmed. These are also very secure as these have no external wiring that can be cut by intruders. This fact makes these outdoor keypads apt for office buildings, commercial places, apartments, parking, industrial areas etc. These have an auto-relock feature that gets activated as soon as the door is closed.

Internet Display buying tips

The popularity of internet display can be summarized from the fact that rate of advertising on these is continuously increasing. While in Europe the increase in the rate has been only 10.4%, the figures are considerably higher in Latin America and Asia Pacific. In Asia-Pacific the rate has been around 33.2% while in Latin America, it has been 48.2%. Apart from internet display, outdoor keypad advertising has also increased by almost 4.3 percent.

Most of the revenue of internet display advertising comes from direct response campaigns. These account for three-quarters of the whole display advertising. In these campaigns, visual advertisements are presented to the target audiences. These advertisements are called “ad”. They help to increase the revenue of short-term sales.

These give great performance when used in control devices. These have both-tactile and non-tactile response. The responses help to reduce the operation time. Other major feature of these keypads is that these have embedded LED’s like the ones used in outdoor keypads. LED’s are light emitting diodes. These LED’s help to give high end visibility during low lighting conditions. This helps to operate these devices efficiently in such conditions.

Before buying an internet network keypad, keep the following points in mind:

1. Always try to get all the information about the brand, before you buy its products. Avoid poor brands
2. Get the basic information of the brand from the website and only buy their products, if you feel that they are true and genuine. You will also get the basic knowledge of the technologies used from their website.
3. Read all the testimonials and the other client’s reviews about the brand. This will help you to know about their service and no way is better than getting information from the other customers.
4. Also, compare the prices of a brand with the prices of the other brands of rugged keypads. This will help you to decide whether the prices of the brand are reasonable or not.

Serial over Ethernet keypad applications

Keyboards are the most widely used input devices. Despite advancements in the input technology and entry of devices like mice, touch screens, voice recognition etc, these are still used extensively as the human-machine interface. The basic working of all the keypads is same. These have keys that have printed or engraved numbers, symbols, words, letters or images, which when pressed act as switches. These switches send instructions to the machine.

Embedded computers and microprocessors are extensively used nowadays. These use serial ports and support serial communication. These use serial over Ethernet keypads. In microprocessors, serial ports called as UART (Universal Asynchronous Receiver Transmitter) are used. These are used in coordination with a line driver chip. Almost all of the microprocessors have the hardware provisions for serial communications. These serial over Ethernet keypads act as an excellent connectivity option between interface technologies and embedded microprocessors. It helps to make these technologies easy to implement. These have COM ports into which these keypads can be plugged in and used.

Network keypads, serial over Ethernet, outdoor keypads etc. are all on the rise in use. These are used to connect the network devices to the Wi-Fi or Ethernet. Most of these keypads can synchronize with PCs, whole house lightings, iPods etc. The user can connect as many components over the LAN (Local Area Network) as one wants. These components are IP controlled.

The popularity of serial communications is massive and so is that of internet display keypads, serial over Ethernet keypads and access control keypads. Most of the keypads available today in the market are designed to work in the harshest of conditions. These come with a metal housing as well and so are called as metal keypads as well. These are very apt for the outdoor and extensive conditions like military etc. These are also suitable for high security applications and can be used in any system. Their characteristics like vandal-proof, water-proof and weather-proof further increase their applicability. These are apt for all the Ethernet applications as well.

Network Keypads information

Network keypads have seen great advancement in their technology. Modern keypads even come with the ability to audio-video components, PCs, iPods, Whole house lightings, energy management devices etc. These come with the ability to attach as many IP controlled components over the Local Area Network (LAN) as the user wants. The components are controlled by a serial.

These can be used to control the lightening in the whole house. There is no need for expensive black boxes or exotic wiring. The whole lightening can be controlled by a control customized in the form of a URC dimmer or switch. The user can completely control by dimming, brightening or recalling various scenes without the help of any PC or programmer. The settings can be adjusted manually.

In order to enjoy the RSS feeds, the LAN has to be connected to the internet. These keypads can also be used to control a metal keypad device as well. These devices are powered by a PoE injector. In addition, these are provided with slim and narrow, aluminium alloy housing that is most suitable for doorframe mounting. This housing provides durability to the keyboard and resistance to vandalism.

Most of these keypads are vandal resistant and are designed in a way to function properly in the most hostile environments. These can be used as outdoor keypads as well. These are in particular apt for high security applications. These come with an open protocol and can be used in any system. Redundant connections like UDP and TCP are also available with many of these. There is an integrated web server that can be configured and reset.

Many network keypads also come with an optional transmitter. In all, theses keypads let a user to make a local stack of components using a low cost wireless control. These are also compatible with third party access control keypads.