EMC DS-24M2 Installation Manual
EMC Departmental Switch
DS-24M2
Installation Guide
P/N 014003129
REV A01
October 22, 2002
This document explains the power, cooling, weight, and rack placement
requirements for the EMC DS-24M2 departmental switch. It also
describes the kits available for mounting the switch in EMC and
non-EMC racks and includes installation instructions as well.
Major sections are
• Power, Cooling, and Weight Information.............................................. 2
• Device Dimensions.................................................................................... 2
• Device Placement Requirements............................................................. 2
• Switch Mounting Kit Parts List ............................................................... 3
• Attaching Rail Mounting Hardware....................................................... 5
• Assembling the Rails................................................................................. 7
• Mounting the Slide Rails to the Switch................................................ 10
• Installing the Switch into the Cabinet ...................................................11
• Installing Latch Brackets or Ball Studs................................................. 13
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Power, Cooling, and Weight Information
Power, Cooling, and Weight Information
Device Power Requirements
DS-24M2 switch 90 to 264 Vac, 47 to 63 Hz 167 BTU/hr 17 lbs (7.7 kg)
Cooling Requirements
(Heat Dissipation) Maximum Weight
Device Dimensions
Device Height Depth Width
DS-24M2 switch 1.0 U 1.7 in 4.3 cm 19 in 48.3 cm 17.1 in 43.4 cm
Device Placement Requirements
There are no restrictions on the location of the DS-24M2 switch in the
rack/cabinet.
Switches are typically located at the top of the rack/cabinet in pairs.
Power distribution must support the number of outlets required for
the switch and the switch power rating listed in the table above.
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EMC Departmental Switch DS-24M2 Installation Guide
Switch Mounting Kit Parts List
The switch mounting kit includes rails, bezel, and power cords as
listed in the table below.
Component Use
2 mounting slide rails (left and right) 1 left and 1 right per switch
2 rear rails (left and right) 1 left and 1 right per switch
2 long front rails 2 per switch
Switch Mounting Kit Parts List
2 short rails 2 per switch
2-hole bar nuts 2 per switch for joining front and rear
rails
3-hole bar nuts 4 per switch for attaching the rails to the
front and rear channels
EMC Departmental Switch DS-24M2 Installation Guide
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Switch Mounting Kit Parts List
Component Use
#10 washers ball studs 1 washer and 1 ball stud per rail to hold
bezel (2)
39U bezel only
Latch brackets and keyplate spacers 2 each to secure 1U bezel in 40U
cabinets
Ten (10) Phillips pan-head screws (#10 32x5/8) with split lock and flat
washers (SEMS)
Attaches the rail mounting hardware in
a 40U cabinet and a 39U cabinet
(round-hole channel only)
Four (4) Phillips flat-head screws (#8 32x3/8) Attaches the combined front and rear
rails.
Eight (8) Phillips flat-head screws (#10 32x5/8) and
Eight (8) square-hole washers
Attaches the rail mounting hardware in
a 39U cabinet (square-hole channel
only)
Four (4) Phillips flat-head securing screws (#8x32) Attaches the switch to the combined
front and rear rails.
A #10 Torx® screwdriver Removes and installs the Torx screws
on the switch.
1U low-profile or standard-profile bezel (front rack panel) 1 per switch
Tools Required for Installation
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EMC Departmental Switch DS-24M2 Installation Guide
You will need the following tools to complete the installation of the
rails and switch(es). These tools are not available in this kit.
◆ # 2 Phillips head screwdriver
◆ A tape measure
Attaching Rail Mounting Hardware
This section describes how to attach the rail mounting hardware to a
40U and 39U rackmount cabinet.
1. Determine the position of the switch in the cabinet. Each switch is
1.75 inches, or 1U, high.
There are no restrictions on the location of the switches in the
rack/cabinet. However, switches are typically located at the top of the
rack/cabinet in pairs.
2. If you are installing the switch in a 40U cabinet, do the following:
a. Mount two 3-hole nut bars on the inside of the front channel
so the nut bar holes are closest to the inside of the cabinet and
the keyplate spacer is on the outside of the front channels, as
illustrated in the figure below.
b. Insert the #10 32x5/8” screws in the top and bottom screw
holes. The center screw hole is used for the latch bracket (in a
40U cabinet) or the ball stud (in a 39U cabinet). Do not
completely tighten the nut bar screws at this time. You need to
leave the nut bar assembly loose enough to accommodate the
rail flange when you install the combined front and rear rails
later.
Attaching Rail Mounting Hardware
The keyplate spacer is marked such that an L or an R will be upright
when correctly installed on the left or right channel.
3-Hole Nut Bar
Keyplate Spacer
Front Rackmount Cabinet
EMC Departmental Switch DS-24M2 Installation Guide
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