Raised floor 11.3.2 Top Exit cabling feature (optional) If the z15 server is installed in a raised floor environment, air-cooled and water-cooled models  are supported. You can select top exit features to manage I/O cables from the top frame of the  z15 server.  The following top exit options are available for z15 servers: The optional Top Exit cabling feature (FC 7917) allows for I/O cabling and power cords to exit  the top of the frame. This feature adds cable management options, such as trunking and  retainer brackets, as shown in Figure 11-6. The Top Exit cabling feature can be placed as  shown in Figure 11-6, with the exit area towards the front of the frame, or with the exit area  towards the rear of the frame. Note:  The feature provides the same extra hardware for every frame in the configuration. The Top Exit cabling feature adds 117.5 mm (4.63 in.) to the height of the frame and  approximately 5.4 kg (12 lbs) to the weight. If the Top Exit cabling feature is not ordered, two sliding plates are available on the top of the  frame (one on each side of the rear of the frame) that can be partially opened. By opening  these plates, I/O cabling and power cords can exit the frame. The plates should be removed  to install the The Top Exit cabling feature as shown in Figure 11-7 on page 466. Figure 11-6 Top Exit cabling feature GLYPH<SM590000> Top Exit I/O cabling feature code (FC 7917) GLYPH<SM590000> Bottom Exit cabling feature code (FC 7919) GLYPH<SM590000> Top Exit Cabling without Tophat feature code (FC 7928) Chapter 11. Environmentals  465