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D-Link has launched its series of Power over Ethernet ( PoE ) network switches , featuring Open Network Video Interface Forum ( ONVIF ) support . The new DGS-1100 MP / MPP Series Gigabit Smart Managed Surveillance PoE + Switches have been designed to dramatically simplify the installation and management of IP CCTV systems .
D-Link ’ s unique inclusion of ONVIF support enables these high performance Ethernet switches to automatically recognise both D-Link and third party IP cameras , network video recorders ( NVRs ) and other IP devices such as access control systems . Automatic device recognition via ONVIF means installation teams just need to plug network cables into CCTV cameras and other components , connect the cables to the smart switch and the system ’ s elements will appear in the switch ’ s dedicated surveillance optimised web interface .
From this straightforward interface , the installer or operator can see real time information about their surveillance network , such as surveillance topology , device status , PoE consumption data and network bandwidth utilisation . With full control over the PoE ports , at the click of a mouse cameras can be configured and managed ; for example to set schedules for camera operation or to restart a device . For further information visit : www . dlink . com
Up the ante-nna
With regular headlines about the latest cybercrime attack stealing important or commercially sensitive data , the physical security of IT equipment is often overlooked .
By installing passive RFID tags on every removable component of the rack data centre systems integrators and site operations managers can easily use them not only to record locations but more information about the device than they could before with standard asset tags . But how you implement RFID monitoring is critical to the performance of the system .
Portable hand held RFID reader systems have a very small UHF read range and only offer a slightly better performance than relying on paper records or barcodes because it requires employees to walk down aisles and identify the piece of equipment and its location . This is a very time consuming task and as such is not undertaken very often . It also relies on the competence and integrity of the operator carrying out the check .
Typically , four antennas would have to be separately mounted either side of the front of each server rack , in both the upper and lower areas and carefully positioned to ensure there are no gaps in the RF field coverage . Correspondingly , with such an arrangement it would also be necessary to utilise multiple readers , resulting in excessive installed cost .
Harting now has the ideal solution to remove this higher cost multiple patch antenna and reader arrangement with its Ha-VIS RFID Locfield coaxial cable waveguide antenna .
They can be directly integrated , with insulating spacers , onto the rear side of the front access door of each server rack . Only one of these Ha-VIS RFID Locfield antennas needs to be fitted for a fully installed 45U server rack . By fitting in an extended S-shape design you can achieve the best possible RF field coverage of the complete rack . In conjunction with a single reader which has the required power to match the correct read distances , it can register passive RFID tags that provide specific item identification within a rack and additional sensor functionalities eg . detecting empty or occupied slots , thus minimising the complete data centre system installation cost . For further information visit : www . harting-rfid . com
Hot and cold
Siemon has announced the expansion of its line of WheelHouse advanced data centre solutions to include comprehensive aisle containment solutions with both cold aisle containment ( CAC ) and hot aisle containment ( HAC ) options that significantly improve efficiency and cost effectively expand capacity for today ’ s data centres .
By either containing and isolating the cold air supply ( CAC ), or by guiding hot exhaust to overhead return air spaces ( HAC ), the new aisle containment solutions prevent the mixing of hot and cold air in the data centre . This allows for higher temperature return air to improve the efficiency of existing cooling systems and reduce energy costs , whilst preventing overprovisioning of computer room air conditioning ( CRAC ) units . Alternatively , these solutions cost effectively expand the capacity of the data centre to cool higher heat densities , maximising both cabinet and data centre floor space without the need for supplemental cooling .
Designed with robust seals for optimal thermal isolation , the new aisle containment solutions consist of CAC roof panels , HAC standing cabinet panels , single and double manual and self-closing doors and end panels that have been designed for quick and easy on site attachment to rows of Siemon VersaPod , V800 and V600 data centre cabinets . The containment systems are also compatible with Siemon ’ s SidePod and Baffle solutions that support side-to-side ventilated active equipment . A range of accessories are available to complement the system , including filler panels to fill spaces where cabinets are not present , wall mount brackets for installation against a wall for a single cabinet row , vertical panel angled support brackets when attaching to the ceiling is not allowed , and riser brackets to raise the ceiling height within the contained aisle when using shorter ( 42U ) cabinets . For further information visit : www . siemon . com / wheelhouse
Home truths
Interference free video streaming , real time gaming and data back ups at up to 10 gigabits per second – Datwyler has developed the CU 7000 4P Home data cable specifically for high speed multimedia cabling in residential buildings .
The shielded AWG26 cable is only 5.8mm thick and is easy to run through thin tubes . It is compatible with all current connecting hardware in accordance with EN50173 and ISO / IEC 11801 .
On links up to 60m it meets all the ISO / IEC requirements for a Category 7 ( 600MHz ) product . Its main features are an attenuation of 32 decibels ( dB ) per 60m at 500MHz , very good NEXT values of 92dB at 500MHz , a high impedance accuracy as reflected in a return loss of 26dB at 500 MHz , and good mechanical characteristics , eg . a tensile strength of 62 Newton ( N ).
The data cable comes in a practical pull-quick box ( 304m ). For further information visit : www . cabling . datwyler . com
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