Powering Access Control

Powering Access Control

New standard allows manufacturers to design products with bigger features

The new IEEE802.3bt PoE standard, also often referred to as PPoE or 4-Pair PoE, is a game-changing solution for powering 12VDC and 24VDC access control and related devices. IEEE802.3bt introduces two new types of PoE; one providing up to 55W and the other up to 75W. Unlike Hi-PoE (60W), IEEE802.3bt uses all four pairs of wire in a structured cable to evenly distribute power. This new standard allows manufacturers of powered devices to design new products with bigger features, faster motors and more capabilities.

To date, there are few products on the market that have already adopted the 802.3bt standard. Aside from PoE lighting, there are some infrared illuminators that adhere to 4PPoE, but now that this standard has been ratified, manufacturers are looking to take advantage of this standard for new products.

There are several sources for PoE injectors that supply 802.3bt up to Type 4. For example, Altronix NetWay Midspans are available in single or multi-port options with larger wattage power supplies to cut down on the number of injectors for larger projects. And just recently, Altronix introduced switches offering 4PPoE outputs. This is a good indicator that we will see a lot more devices demanding more power.

When we think of power supplies, they normally have a high voltage input such as 115VAC that is converted into 24VAC or 12/24VDC. There are other power supplies that accept a 24VAC input and convert to 12VDC or lower. For example, when a simple burglar alarm panel requires 16.5VAC input, the panel converts this to 12VDC. This 12VDC will also power the keypad and charge a battery for backup. Though the video surveillance world is going mostly IP and using PoE for power, HD analog cameras for the most part still require 12VDC.

A big application using power supplies hardwired with high voltage is for the deployment of electrified locks. These power supplies generally take 115VAC power input and reduce this to a 12VDC or 24VDC output. That single output is then connected to a distribution board where the electrified magnetic locks or strikes are connected. Most jurisdictions require that this power input be hardwired with a dedicated circuit. Due to the high voltage, a certified electrician must wire this type of installation.

While some security integrators do have certified electricians on staff, the use of high voltage still adds to the cost of any installation. In large cities like Chicago, Boston, or New York, electricians have offices in the same building as the access control system. This limits contracting your own electrician to do the work. The installation also requires dedicated conduit runs as well as expensive large gauge copper and a dedicated circuit breaker. The new 802.3bt 4PPoE standard helps curtail this costly practice.

4PPoE delivers up to 75W of total power. Using new solutions like Tango PoE driven power supplies from Altronix, we can harness the IEEE 802.3bt standard. Tango solutions allows for a PoE input of 15.4W, 30W, or the new 4PPoE 100W and converts it to a useable 75W of available power. With 75W available, the flexibility to power an entire access control system is a reality.

Here is the breakdown using Mercury boards, one of the most widely used platforms in access control.

Based on this data, you can see that 75W can potentially power an entire 8 door system. If these levels are too close for comfort, there are ways you can save power: use a midspan injector or PoE switch that has battery backup. This would eliminate the battery backup on the PoE driven power supply and alleviate 10W. You can also limit the PoE driven power supply to 4-6 doors and use 2 power supplies, putting the 12VDC devices on one power supply and the 24VDC devices on the other. The cost for the second power supply will certainly be less than using an electrician.

Additionally, the access control manufacturer you are working with may draw less power on the panels. Keep in mind that this method of powering your access control system will eliminate the need to schedule a certified electrician to wire up the power supply. The category cable used for power can run in the same cable trays and paths as other network cabling.

When servicing the system, unplugging the Ethernet cable from the PoE driven power supply is safe with no voltage present. Once the cable is back in, the handshake is performed with the power source and 802.3bt PoE is sent back to power the system.

IEEE802.3bt 4PPoE has made its way into our world of security and we can take full advantage of its characteristics to save money, labor and make our installations much safer to work with innovative PoE driven power supplies like Tango from Altronix.

Take a look at a recent access control project you installed, and calculate how much you would have saved using 4PPoE and a PoEdriven Power Supply. You may be surprised at the savings.

This article originally appeared in the January / February 2020 issue of Security Today.

Featured

  • Survey: Less Than Half of IT Leaders are Confident in their IoT Security Plans

    Viakoo recently released findings from its 2024 IoT Security Crisis: By the Numbers. The survey uncovers insights from IT and security executives, exposes a dramatic surge in enterprise IoT security risks, and highlights a critical missing piece in the IoT security technology stack. The clarion call is clear: IT leaders urgently need to secure their IoT infrastructure one application at a time in an automated and expeditious fashion. Read Now

  • ASIS International and SIA Release “Complexities in the Global Security Market: 2024 Through 2026”

    ASIS International and the Security Industry Association (SIA) – the leading security associations for the security industry – have released ”Complexities in the Global Security Market: 2024 Through 2026”, a new research report that provides insights into the equipment, technologies, and employment of the global security industry, including regional market breakouts. SIA and ASIS partnered with global analytics and advisory firm Omdia to complete the research. Read Now

  • President Biden Issues Executive Order to Bolster U.S Port Cybersecurity

    On Wednesday, President Biden issued an Executive Order to bolster the security of the nation’s ports, alongside a series of additional actions that will strengthen maritime cybersecurity and more Read Now

  • Report: 15 Percent of All Emails Sent in 2023 Were Malicious

    VIPRE Security Group recently released its report titled “Email Security in 2024: An Expert Look at Email-Based Threats”. The 2024 predictions for email security in this report are based on an analysis of over 7 billion emails processed by VIPRE worldwide during 2023. This equates to almost one email for everyone on the planet. Of those, roughly 1 billion (or 15%) were malicious. Read Now

Featured Cybersecurity

Whitepapers

New Products

  • EasyGate SPT and SPD

    EasyGate SPT SPD

    Security solutions do not have to be ordinary, let alone unattractive. Having renewed their best-selling speed gates, Cominfo has once again demonstrated their Art of Security philosophy in practice — and confirmed their position as an industry-leading manufacturers of premium speed gates and turnstiles. 3

  • Luma x20

    Luma x20

    Snap One has announced its popular Luma x20 family of surveillance products now offers even greater security and privacy for home and business owners across the globe by giving them full control over integrators’ system access to view live and recorded video. According to Snap One Product Manager Derek Webb, the new “customer handoff” feature provides enhanced user control after initial installation, allowing the owners to have total privacy while also making it easy to reinstate integrator access when maintenance or assistance is required. This new feature is now available to all Luma x20 users globally. “The Luma x20 family of surveillance solutions provides excellent image and audio capture, and with the new customer handoff feature, it now offers absolute privacy for camera feeds and recordings,” Webb said. “With notifications and integrator access controlled through the powerful OvrC remote system management platform, it’s easy for integrators to give their clients full control of their footage and then to get temporary access from the client for any troubleshooting needs.” 3

  • Hanwha QNO-7012R

    Hanwha QNO-7012R

    The Q Series cameras are equipped with an Open Platform chipset for easy and seamless integration with third-party systems and solutions, and analog video output (CVBS) support for easy camera positioning during installation. A suite of on-board intelligent video analytics covers tampering, directional/virtual line detection, defocus detection, enter/exit, and motion detection. 3