Before you install the control enclosure, you must first
install the support rails for it.
To install the support rails for the control enclosure,
complete the following steps.
- Locate the control enclosure rails (Figure 1).
The rail assembly consists of two rails that must be installed
in the rack cabinet.
Figure 1. Control enclosure support rails
- Install a spring on each rail.
- Extend the rail to its full length.
- Push one looped end of a spring over one stud on the
inside of the rail. (See Figure 2.)
Note: Some models of rail have the studs on the outside of the
rail.
- Stretch the spring slightly and push the other looped
end of the spring onto the other stud on the inside of the rail.
Figure 2. Installing the rail spring
- Working at the front of the rack
cabinet, identify the two standard rack units (2U) of space in the
rack into which you want to install the support rails.
Figure 3 shows two
rack units with the front mounting holes identified.
Figure 3. Hole locations in the front of the rack
- 1 Upper rail-mounting bracket pin
- 2 Lower rail-mounting bracket pin
- 3 Rack mounting screw hole
- Ensure that the appropriate bracket pins are installed
in the front and rear bracket of each rail.
Each rail comes with four medium pins preinstalled (two in the
front bracket and two in the rear bracket). Large and small pins are
provided separately. Use the pins that are appropriate for the mounting
holes in your rack (see
Table 1).
Table 1. Selecting bracket pins for your rack.
Mounting holes |
Bracket pins |
Round, unthreaded |
Use the preinstalled medium pins. |
Round, threaded |
Unscrew the medium pins and replace with the
smaller pins supplied with the rails. |
Square |
Unscrew the medium pins and replace with the
large pins supplied with the rails. |
- At each end of the rail, grasp the tab 1 and pull firmly to open the hinge bracket.
(See
Figure 4.)
Figure 4. Opening the hinge brackets
- Align the holes in the rail bracket with the holes on the
front and rear rack cabinet flanges.
Ensure that the rails are aligned on the inside of the rack
cabinet.
- On the rear of the rail, press the two bracket pins into
the holes in the rack flanges.
- Close the rear hinge bracket to secure the rail to the
rack cabinet flange.
(See
Figure 5.)
Figure 5. Closing the hinge brackets
- On the front of the rail, press the two bracket pins into
the holes in the rack flanges.
- Close the front hinge bracket to secure the rail to the
rack cabinet flange.
- Secure the rear of the rail to the rear rack flange with
an M5 screw.
- Repeat the steps to secure the opposite rail to the rack
cabinet.
- Repeat the procedure to install rails for each additional
control enclosure.