PATCHING
patching is needed. Using non-family patching frames or cabinets and server racks here can inhibit performance, with gaps allowing cold air to short circuit the servers. This can be avoided by using the same family of frames, cabinets and raceways so that none of them interfere with the cold-aisle cocooning system.
Under New Management With more cable in the frame, the ability to carry out moves, adds and changes (MACs) quickly and easily becomes
more of a challenge. Good cable management is therefore essential and it is wise to consider this when selecting a frame. Features such as vertical plastic covered steel cable rings on both sides of the frame and horizontal ‘fingers’ at every U keep everything much neater and allow high density patch panels to be fitted without compromising space with the use of horizontal cable manager panels. The general preference amongst
installers and consultants is for 800mm wide frames. However, when the frames
are especially high, in the region of 47U, the sheer volume of vertical cables on either side means that 100mm add-ons are required in order to double the cable capacity and provide effective cable management. A 47U high patching frame that
is full of Category 6A or Category 7 cables will also be incredibly heavy and will need to be properly secured. For safety reasons and in order to stop them tipping, the majority of consultants are now specifying that they be bolted to the building structure rather than just the raised floor tiles. A consistent approach to cabinet and frame installation can assist with this by using raised access floor technology, which replaces whole floor tiles with a raft-like structure bolted to the pedestals to which the cabinets and patching frame are all firmly bolted. This approach also avoids any need for cut floor tiles and is much better for air leakage control.
Looking Good Modern data centres are not just used to house technology, they have to look good. They have to look slick, clean and modern, and therefore a ‘mix and match’ approach to patching frames and cabinets will simply not suffice. While containment solutions have
traditionally been supplied in black, black or black, Cannon Technologies recently carried out some research which discovered that the use of ‘grey- white’ cabinets, racks and frames was found by many respondents to reduce the cost of their lighting by almost 30 percent, as it reflects light rather than absorbing it. It was also found to improve light levels in the workspace, leading to fewer errors.
There has been a massive increase in the heat density of electronic equipment. 48 NETCOMMS europe Volume II Issue 4 2012
Think ahead Clearly, the role of the patching frame should not be underestimated. Specifying a product that has been well designed with features and benefits that enhance security and cable management, ensures efficient cooling and enhances the aesthetic appeal of the data centre will reap its own rewards.
www.netcommseurope.com
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