B secure the two knurled black captive screws to the

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b. Secure the two knurled black captive screws to the NEMA channel and nut clips. These screws secure the chassis cover and prevent the cover from coming out of the cabinet during service. 2. [ ] If your shelf has the two-shoulder screw configuration, proceed as follows: Page 20 of 33
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EMC Confidential Information version: 6.1.6.21 Figure 6 Inserting and Securing the Chassis to the Cabinet (Shoulder Screw Configuration) a. If the shelf is being installed in a non-EMC rack, proceed to substep b. If the shelf is being installed in an EMC rack, use the orange enclosure latch handles to push the shelf completely into the cabinet. Align the two semi-captive M5 shoulder screws on each side with the mounting holes on the cabinet. Thread the shoulder screws into the mounting holes and finger-tighten the shoulder screws. b. To install the shelf into a non-EMC rack (not compatible with the M5 shoulder screws), do the following: Page 21 of 33
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EMC Confidential Information version: 6.1.6.21 Figure 7 DS60 shelf installation reference Figure 8 Removing semi-captive screws Remove the semi-captive M5 screws by sliding them from the ears. For non-threaded racks, place tinnernam clips which match the truss head screws to be used over the mounting holes on the rack. Refer to the table at the end of this procedure. Page 22 of 33
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EMC Confidential Information version: 6.1.6.21 Figure 9 Installing ears to rack using truss head screws Use the orange enclosure latch handles to push the shelf completely into the cabinet. Secure the enclosure to the rack using four truss-head screws. Note: The top cover can secure to the cabinet in one of two ways, depending upon your configuration. Some configurations do not have any hardware installed into the top cover. In these configurations, the appropriate truss head screw must be used to attach the top cover to the cabinet. Some configurations have semi-captive screws in the top cover that will attach to EMC cabinets. If non-EMC cabinets are being used, the semi-captive screws can be removed and truss head screws can be used as required to attach the top cover to the cabinet. To secure the top cover using a top cover that does not have any mounting hardware, secure the top cover to the rack using the screws or pins from the kit that accompanies the device. These screws secure the chassis cover and prevent the cover from coming out of the cabinet during operation. Secure the top cover to the rack as follows: a. If the shelf is being installed into an EMC rack, secure the top cover to the rack using M5 truss head screws from the kit. Tighten the screws until they are finger tight. b. If the shelf is being installed into a non-EMC rack, identify the mounting holes on the rack that will line up with the mounting holes on the top cover. Identify which truss head screws will be used to secure the top cover to the rack (refer to the following table for guidance). For non-threaded racks, place tinnernam clips over the rack mounting holes. Attach the top cover to the rack using the appropriate truss head screws from the hardware kit that comes with the shelf. Refer to the following figure and table for guidance (shelf and rack not shown).
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  • Fall '19
  • 19-inch rack, EMC Corporation, Rack unit, EMC Confidential Information

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