5-4 Rack Mounting Instructions
This section provides information on installing the SC812L chassis into a rack unit with the rails provided. There are a variety of rack units on the market, which may mean the assembly procedure will differ slightly. You should also refer to the instal-lation instructions that came with the rack unit you are using.
NOTE: The rails will ﬁt a rack between 29” and 35.25” deep.
Identifying the Sections of the Rails
The chassis package includes two rail assemblies in the rack mounting kit. Each assembly consists of two sections: an inner ﬁxed chassis rail that secures directly to the server chassis and an outer rack rail that secures directly to the rack itself.
The chassis package includes four rail brackets and two chassis mounts. The rail brackets have long ovals used to adjust the length of the rails when mounting. The chassis mounts (both short) have one square hole.
Figure 5-1: Inner and Outer Rails
To separate the inner and outer rails:
1.) Pull the inner rail (A) from the outer rail (B) as far as possible.
2.) Depress the locking tab (C) to pull the inner rail completely out.
3.) Repeat steps 1 and 2 for the other rail.
Figure 5-2: Rail Installation
To install the inner rail to the chassis:
1.) Align the chassis rail with the side of the chassis.
2.) Secure the rail to the chassis using six M5 ﬂat head screws.
3.) Repeat steps 1 and 2 for the other chassis.
Figure 5-3. Rack Brackets
To install the outer rails to the rack:
1.) Conﬁrm that the inner rails have been separated from the outer rails.
2.) Locate the rail brackets in the accessories box. The chassis package includes four rail brackets and two chassis mounts. The rail brackets have long ovals used to adjust the position of the rails when mounting. The chassis mounts (both short) have one square hole.
3.) Secure the short brackets to the front of the outer rails with two M4 screws.
4.) Secure the long brackets to the outer rails using two M4 screws. Tighten the screws loosely so the bracket can slide back and forth.
5.) Position the outer rail and brackets in the rack at the desired level.
6.) Secure the front of the rail to the rack using two M5 rack screws.
7.) Slide the rear bracket so that it snugly ﬁts into the rack. Secure the rear bracket to the rack using two M5 screws.
8.) Tighten the screws that secure the rear bracket to the rail.
9.) Repeat these steps with the other chassis rail.
Figure 5-4: Mounting the Chassis
To install the chassis into a rack:
1.) Conﬁrm that the chassis includes the inner rails (A) and that the outer rails (B) are installed on the rack (See Figure 5-3)
2.) Align the chassis rails (A) with the front of the rack rails (C).
3.) Slide the chassis rails into the rack rails, keeping the pressure even on both sides (you may have to depress the locking tabs when inserting). When the server has been pushed completely into the rack, you should hear the locking tabs “click”.
4.) (Optional) Insert and tightening the thumbscrews that hold the front of the server to the rack.
Telco (Two Post) Racks
Telco racks utilize two posts instead of four. Because of this, telco racks require a different installation process.
Figure 5-5: Installing the Server into a Telco Rack
To install the chassis into a Telco rack:
This chassis requires both the inner and outer rails for Telco rack installation. You must reverse the brackets to accommodate two posts instead of four:
1.) Install the inner rails to the chassis as described in this chapter.
2.) Attach the short and long brackets to the outer rails, as illustrated. For the short brackets, use one M4 screw placed in the oval screw mount. For the long brackets, use the two M4 screws placed in the two middle oval screw mounts. Tighten the screws loosely.
3.) (Optional) Attach the chassis mounts if you will want to lock the chassis into place once the chassis is installed.
4.) Repeat steps 2 and 3 for the second outer rail.
Figure 5-6: Installing the Server into a Telco Rack
5.) Place one outer rail in the Telco rack as illustrated.
6.) Slide the brackets until each snugly ﬁts against the Telco rack post.
7.) Secure the brackets to the Telco rack with two M5 screws for each bracket.
8.) Tighten the M4 screws that secure each bracket to the outer rail.
9.) Repeat steps 5 - 9 using the second outer rail.
10.) Line the inner chassis rails (A) with the front of the outer rails (C) (see Figure 5-3).
11.) Slide the chassis rails into the rack rails, keeping the pressure even on both sides (you may have to depress the locking tabs when inserting). When the server has been pushed completely into the rack, you should hear the locking tabs “click”.
12.) (Optional) If you installed the front chassis mount, you can insert thumb-screws through the chassis ears and chassis mounts. The chassis cannot be pulled from the rack unless the thumbscrews are removed.
A-5 Chassis Screws
The chassis and accessory box include all the screws needed to setup your chassis. This section include descriptions of the most common screws used. Your chassis may not require all the parts listed.