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EMC Rails and Enclosures (CX4 Series Storage Systems) Field Installation Guide
Installing a 2U SPS tray (100-561-369) and SPS units in a cabinet
2. Remove the adjustment screws from your rails (if necessary) and 
extend the rails to the proper length.
3. Secure the 4 adjustment screws at the furthest outside positions 
possible, as shown in Figure 15.
Figure 15 Adjusting 2U SPS rail length
Installing the rails in the cabinet
This section describes how to mount the rails in the cabinet.
1. After you adjust the rails and decide where in the cabinet you 
want to install the SPS tray, find the unoccupied 2U section on the 
rear channels. We suggest that you install the SPS tray 
immediately below the SPE2, if possible (refer to the device 
placement examples beginning on page 3).
2. From the front of the cabinet, insert the alignment pins on one 
mounting rail assembly into the appropriate holes of the selected 
2U space on a rear channel. Figure 16 shows the correct channel 
holes for the alignment pins.
Adjustment
screws
Adjustment
screws
Adjustment
screws
Adjustment
screws
SPS adjustable rails
EMC3460