IBM MTM 2145-12F, Hardware Installation Manual

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v
▌1▐
Upper rail mounting bracket pin
v
▌2▐
Lower rail mounting bracket pin
v
▌3▐
Rack mounting screw hole
5.
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 9).
Table 9. 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 that are
supplied with the rails.
Square Unscrew the medium pins and replace with the large pins that are
supplied with the rails.
6. At each end of the rail, grasp the tab
▌1▐
and pull firmly to open the hinge
bracket (see Figure 35 on page 32).
1
2
3
v3500162
Figure 34. Hole locations in the front of the rack
Chapter 3. Installing an optional 2U SAS expansion enclosure
31