Dell DS-32M2 Installation Guide - Page 6

Installing the DS-16M and DS-32M Rails DS-16M Rails Installation There are two different length rails: The short rails range between 20.5 inches to 27 inches. The long rails range from 27 inches to 34 inches. Each kit contains two different length rear rail mounts. Use the rail length that is appropriate for your rack/cabinet. Front DS-16M Short Rails (for the CLARiiON Rack/Cabinet) Rear Front DS-16M Long Rails (for 3rd Party Racks/Cabinets) Rear The front and rear flanges of the DS-16M rails have three screw holes. See the figure below. DS-16M Front Flange DS-16M Rear (u-shaped) Flange If you are installing both a DS-16M2 and DS-32M2 switch, the DS-16M2 should be positioned at the top of the rack/cabinet, located above the DS-32M2 switch. Select the appropriate length rails, and follow the steps below to install them. 6 EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide