Components of a PoE Emergency Lighting system A PoE emergency solution consists of a PoE POD device and PoE emergency signs. The POD communicates with the luminaires and the central control point via Cat.6A patch cables. In addition, the POD device should have a full self-test function that automatically reports and detects faults. Various options exist for PoE emergency signs for ceiling or wall mounting. They should meet the following characteristics: • Integrated electronics and battery • LED charge/current indicator • Three hours operating time • Power supply: LED power with nominal 1.3 W. • Input connector RJ45 compatible. • 3000mAh 3.2V LiFePO4 battery. • Operating ambient temperature: 0 to 50 °C • Protection class: IP40 For the most efficient use, users have several visual options when choosing emergency luminaires for corridors and open areas. To meet aesthetic requirements, the size of the luminaires should be small. The following features prove ideal: • Integrated Halo LED display • Single RJ45 input connection to battery • Power supply: LED voltage: nominal 3.4V DC; LED current 450mA; LED connector 1 x C4202-H02X2. • Luminous power: Output luminous flux at 450mA, 3 hours: 180lm (nominal), CCT: 6000K, CRI: 70 • Lens Options: Corridor: 155° x 115°, large range 13 IoT sensor networks via PoE Once a comprehensive PoE network has been set up, a wide range of possibilities and functions are created by networking sensors such as Wall Switch, Kinetic Thermostat, Smoke Alarm, Heating Control, Relay/Blind Control, Occupancy, Themostat, HVAC Control, Dimming Wall Switch and Amient Light. Control is via simple gateway systems that communicate with the sensors using EnOcean, Bluetooth 5.1, Zigbee 3.0 or Thread wireless standards. Connection to the cloud and integration in BMS solutions is possible via the MQTT message protocol. Of particular interest is the PoE connection of well-being sensors with a 360-degree detection range via standard PoE RJ45 connections via Bluetooth and Beacon. They enable extended daylight use, integration into building systems for climate control and measurement of ambient noise. Sophisticated digital gas sensors measure indoor air quality, for example, CO2 levels. As additional functions, the sensors can detect changes in colour, brightness and temperature. Integrated PIR sensors detect heat emitted by a body or a hot engine in the form of IR radiation. An IoT sensor network creates the conditions for implementing a wide range of monitoring, control and optimization concepts. 8. CONCLUSION AND OUTLOOK With an installed base of currently around 1 billion ports, Ethernet is the undisputed number one network protocol. This ensures users the long-term, cost-effective availability of components and devices for this standard. The application areas presented in this white paper offer users practical optimization approaches with short amortization cycles. Low-hanging-fruit PoE lighting helps the cautious to take their first steps and gain their own experience. Because it is the better solution with lower investments. Those who are already convinced are building their Smart Building of the future with a comprehensive PoE infrastructure, in order to be among the early bird users of innovative concepts in building management. 12 13
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