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• Installing the SRX5800 Services Gateway Mounting Hardware for a Four-Post Rack or Cabinet    

• Related Topics
• Overview of Installing the SRX5800 Services Gateway
• Site Preparation Checklist for the SRX5800 Services Gateway
• Installing the SRX5800 Services Gateway Mounting Hardware for Front-Mounting in an Open-Frame Rack
• Installing the SRX5800 Services Gateway Mounting Hardware for Center-Mounting in an Open-Frame Rack
• Tools Required to Install the SRX5800 Services Gateway with a Mechanical Lift
• Installing the SRX5800 Services Gateway Using a Mechanical Lift

Installing the SRX5800 Services Gateway Mounting Hardware for a Four-Post Rack or Cabinet

If you are installing the services gateway in a front-mount four-post rack or cabinet, you must first install the large mounting shelf, followed by the small mounting shelf.

Table 1 specifies the holes in which you insert cage nuts and screws to install the mounting hardware required in a four-post or cabinet rack (an X indicates a mounting hole location). The hole distances are relative to one of the standard “U” divisions on the rack. The bottom of all mounting shelves is at 0.04 in. (0.02 U) above a “U” division.

Table 1: Four-Post Rack or Cabinet Mounting Hole Locations

Hole	Distance Above “U” Division		Large Shelf	Small Shelf
3	1.51 in. (3.8 cm)	0.86 U		X
2	0.88 in. (2.2 cm)	0.50 U	X	X
1	0.25 in. (0.6 cm)	0.14 U		X

To install the mounting shelves (see Figure 1):

1. On the front rack rails, install cage nuts in the holes specified in Table 1 for the large shelf and the spacer bars.
2. On the front of each front rack rail, partially insert a mounting screw into the hole containing the lowest cage nut.
3. Install the large shelf on the front rack rails. Rest the bottom slot of each ear on a mounting screw.
4. Partially insert a mounting screw into the top hole in each ear of the large shelf.
5. Tighten all the screws completely.
6. On the rear rack rails, install cage nuts in the holes specified in Table 1 for the small shelf.
7. On the back of each rear rack rail, partially insert a mounting screw into the hole containing the lowest cage nut.
8. Install the small shelf on the back rack rails. Rest the bottom slot of each ear on a mounting screw. The small shelf installs on the back of the rear rails, extending toward the center of the rack. The bottom of the small shelf should align with the bottom of the large shelf.
9. Partially insert screws into the open holes in the ears of the small shelf.
10. Tighten all the screws completely.

Figure 1: Installing the Mounting Hardware for a Four-Post Rack or Cabinet