HP FlexFabric 12900 series Installation Manual page 19

Before you attach slide rails to the rack, verify that:
• The slide rails can support the total weight of the switch and its accessories. For the weights of the
HP FlexFabric 12900 switches, see
HP recommends that you order the HP X421 A-Series Chassis Universal 4-Post Rack Mounting Kit
(JC665A). For more information about the kit, see
The dimensions of the rack are sufficient for the chassis. To meet the clearance requirement, HP
•
recommends that you use a rack with a depth of 1.2 m (3.94 ft). You must reserve at least 155 mm
(6.10 in) of clearance between the front rack post and the front door.
The total depth of the switch is 1080 mm (42.52 in) by calculating together the depth of chassis,
the cable management bracket, and the power cable bracket, which are 830 mm (32.68 in), 150
mm (5.91 in), and 100 mm (3.94 in), respectively.
To ensure stability of the rack, install the slide rails to the lowest possible position when installing a
•
single switch on the rack. To install multiple switches on the rack, mount the heaviest switch at the
bottom of the rack.
Identify the rack position for the switch. For the height and other specifications of the HP FlexFabric
•
12900 switches, see
Slide rail installation varies with rack type. The following installation procedure is for your reference only.
To install a slide rail:
1. Read the signs on the slide rail (see
Figure 7 Right slide rail
(1) Guide rail
Table 6 Description of signs on the slide rails
Sign
F/L
F/R
"Appendix A Chassis views and technical
"Appendix A Chassis views and technical
Table
(2) Sign
Meaning
Front end of the left slide rail
Front end of the right slide rail
13
"Appendix B FRUs and compatibility
specifications."
6) to avoid making a mistake.
Remarks
Mount this end to the front left rack post.
Mount this end to the front right rack post.
specifications."
matrixes."
(3) Installation hole