Alcatel OS6855-24 User Guide - Page 118

Table-Mounting OS6855-14/P14 and OS6855-U10 Switches Mounting OS6855-14/P14 and OS6855-U10 Switches Redundant Chassis Power with PoE (OS6855-14/P14) If the switch requires both redundant power and PoE, a minimum of four (4) power supplies is required (see page 4-4 for more information). To accommodate four power supplies, a second power supply tray must be installed directly behind the first power supply tray. To install the second power supply tray, insert the two tabs at the base of the power supply tray into the grooves provided at the bottom-rear portion of the first power supply tray. Secure the second power supply tray to the first power supply tray using the attachment screws (provided), then install the additional power supply bricks by repeating steps 2 through 6 of this section. 11 Now that the chassis and power supply tray(s) are assembled, remove the honey-combed attachment brackets from the front of the chassis and power supply tray. These brackets will be replaced with brackets with pre-attached rubber bumpers. The rubber bumpers allow optimum spacing between the chassis and table surface, provide additional shock absorbing, and help protect the table surface from damage caused by contact with the metal flange. 12 Locate the table-mount brackets provided in your ship kit and orient the brackets so that the rubber bumpers are facing down. Attach the brackets to both the left and right side of the switch, as shown. 13 Attach two additional mounting brackets (provided) to the rear portion of the chassis so that the rubber bumpers are facing down. Attach the brackets to both the left and right side of the switch. 14 Attach the additional mounting brackets (provided) to the rear portion of the power supply tray that was installed at step 1 (again, so that the rubber bumpers are facing down). Attach the brackets to both the left and right side of the tray. page 4-26 OmniSwitch 6855 Series Hardware Users Guide September 2011