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EMC Departmental Switches
DS-16M2 and DS-32M2
Installation Guide
P/N 014003063
REV A02
August 1, 2002
This document explains the power, cooling, weight, and rack placement
requirements for the EMC departmental switches listed below. It also
describes the kits available for mounting them in EMC and non-EMC
racks and includes installation instructions as well.
Device Device Model Mounting Kit Model
16-Port Departmental Switch (2Gb) DS-16M2-0D DS16M-CRKH/CRKL
32-Port Departmental Switch (2Gb) DS-32M2-0D DS32M-CRKH/CRKL
Major sections are
• Device Power, Cooling, and Weight Information................................. 2
• Device Dimensions.................................................................................... 2
• Device Placement Requirements............................................................. 2
• Switch Mounting Kit (DS-16M or DS-32M)........................................... 3
• Installing the DS-16M and DS-32M Rails............................................... 5
• Installing the DS-16M2 and DS-32M2 Switches.................................. 17
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Device Power, Cooling, and Weight Information
Device Power, Cooling, and Weight Information
Cooling Requirements
Device Power Requirements
(Heat Dissipation) Maximum Weight
DS-16M2 switch Voltage: 100 to 230 V ac, 47 to 63 Hz
5 amperes max
2 ac power cords per unit
DS-32M2 switch Voltage: 100 to 230 V ac, 47 to 63 Hz
5 amperes max
2 ac power cords per unit
Device Dimensions
Device Height Depth Width
DS-16M2 Switch 1.0 U 1.7 in 4.3 cm 25 in 63.5 cm 17.5 in 44.5 cm
DS-32M2 Switch 1.5 U 2.55 in 6.47 cm 25.1 in 63.75 cm 17.5 in 44.5 cm
Device Placement Requirements
The DS-16M2 switches must be located at the top of the rack/cabinet,
because the power cord routing for these switches runs across the top
of the uppermost switch. There are no restrictions on the location of
the DS-32M2 switches in the rack/cabinet.
410 BTU/hr 11.8 kg (26 lb)
836 BTU/hr 15.4 kg (34 lb)
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EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
Power distribution must support the number of outlets required for
the switch and the switch power rating listed in the table on page 2.
Page 3
Switch Mounting Kit (DS-16M or DS-32M)
The DS16- and DS32-CRKH kits contain the16- or 32-port standard switch
rail mounting kits, and the DS16- and DS32-CRKL kits contain the 16- or
32-port low protrusion rail mounting kits.
Component Use
2 mounting brackets - see illustration on page 17. 2 per switch
Switch Mounting Kit (DS-16M or DS-32M)
2 short rail assemblies (20.5 inches to 27 inches)- see illustration on
page 6 or page 12
or
2 long rail assemblies (27 inches to 34 inches)- see illustration on
page 6 or page 12
#10 flat washer
M5 kep nut
6-32 x .31 screws 5 thread-forming screws per bracket to
M5 x 12 mm screws 4 per rail for DS-16M in round-hole
2 per switch
2 per rail assembly to secure adjustable
rail to the “C” channel.
secure bracket to switch (10)
or
5 non thread-forming screws per
bracket to secure the bracket to the
switch (10)
Note: The kits include two (2) bags of
6-32 x .31 screws. Be sure to check the
labeling on the bags and the chassis
number label located on the back and
bottom of the chassis to ensure that you
use the correct screws for your chassis.
channels (8)
3 per rail for DS-32M in round-hole
channels (6)
EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
Square-hole washer
M5 x 16 mm screws
4 per rail for DS-16M in square-hole
channels (8)
3 per rail for DS-32M in square-hole
channels (6)
M3 x 8 mm screws 1 per bracket, used to secure brackets
to the rails (2)
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Switch Mounting Kit (DS-16M or DS-32M)
Component Use
1U or 2U, low-profile or standard-profile bezel (front rack panel) 1 per switch
Two 7-foot USA power cords, straight C13 to N5-15P straight
Two 6-foot IEC power cords, straight C13 to C14 straight
Tools Required for Installation
You will need to have the following tools available to complete the
installation of the rails and switch(es).
#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 for 16M
switch in 40U cabinets
Left and right latch brackets 1 left and 1 right to secure 2U bezel for
32M switch in 40U cabinet
2 per switch
(use the ones appropriate for your PDU)
◆ # 1 Phillips head screwdriver
◆ 1/4-in. nut driver
◆ 5/16-in. nut driver
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EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
Page 5
Installing the DS-16M and DS-32M Rails
This section describes the installation procedures for the DS-16M and
DS-32M rails. The figures below show a front and rear view of four
sets of rails installed in a 39U rack. Note that the rack is shown
without the side skins.
Installing the DS-16M and DS-32M Rails
Front View
Rear View
EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
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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)
Front
DS-16M Long Rails (for 3rd Party Racks/Cabinets)
Rear
Rear
The front and rear flanges of the DS-16M rails have three screw holes.
See the figure below.
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EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
DS-16M Front 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.
DS-16M Rear (u-shaped) Flange
Select the appropriate length rails, and follow the steps below to
install them.
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Installing the DS-16M and DS-32M Rails
1. Assemble the rails.
The rails assembly consists of an adjustable rail, a C channel, and
two washers and kep nuts. See the figure below.
C channel
Adjustable
rail
a. Insert the threaded posts on the C channel into the slot on the
adjustable rail.
b. Secure the adjustable rail to the C channel with two #10 flat
washers and M5 kep nuts. Leave the nuts finger tight.
Attach washers\nuts
to threaded posts
2. Determine where in the rack/cabinet you are going to locate the
switch.
The left/right orientation of the rails is determined by the
location of the word “top” on the C channel. The rail is oriented
correctly when this word “top” is up and toward the rack/cabinet
front. See the next figure.
EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
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Installing the DS-16M and DS-32M Rails
"Top" up and to the
rack front
3. Adjust the length of the rail to fit between the channels in the
rack/cabinet.
NOTE: The rail flanges go to the inside of the channels.
4. Once the rails are adjusted to the correct length, tighten the kep
nuts on the rail assembly.
NOTE: If the side skins are removed on the rack/cabinet, you can tighten
the kep nuts after you install the rails.
5. Align the holes of the front rail flange to the inside of the front
channel. The top and bottom screw holes are used for the screws;
the center screw hole is used for the ball stud or latch bracket.
Flange to the inside
of the channel (rack front)
6. Secure the rail to a round-hole channel with 2 M5 x 12 mm
pan-head screws (see the table on page 3), or secure the rail to a
square-hole channel with 2 square-hole washers and
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EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
Page 9
Installing the DS-16M and DS-32M Rails
S
M5 x 16 mm flat head screws (see the table on page 3). Leave the
screws finger-tight, and tighten them after the switch is installed.
See the figure below.
DS-16M Round-Hole
Channel, Rack Front
(for example, the
DS-16M Square-Hole
Channel, Rack Front
(T
hird-Party Rack/Cabinet)
CLARiiON Rack/Cabinet)
If you are installing the switch in a 40U cabinet, install a keyplate spacer on
the outside of the channel as you secure the rail to the front channel. The
spacer is marked such that an L or an R will be upright when correctly
installed on the left or right channel. See the figure below.
witch
Mounting Rails
Spacer
Screw (2)
EMC2424
EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
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Installing the DS-16M and DS-32M Rails
2
Keyplate
Latch
Spacer
Bracket
7. If you are installing the switch in a 39U cabinet, position the #10
washer and ball stud in the center hole, between the two
M5 x 12 mm screws. Hand-tighten the ball stud.
NOTE: The ball studs support the bezel.
If you are installing the switch in a 40U cabinet, use an M5 x 12 mm
screw to install the latch bracket in the center hole, over the
keyplate spacer. See the figure below.
Screw
EMC242
8. Align the holes in the rear, u-shaped flange of the rail with the
holes in the rear inside channel.
Rear (u-shaped)
flange
10
EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
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Installing the DS-16M and DS-32M Rails
9. Secure the rail to a round-hole rear channel with 2 M5 x 12 mm
pan-head screws (see the table on page 3), or secure the rail to a
square-hole rear channel with 2 square-hole washers and
M5 x 16 mm flat-head screws (see the table on page 3). Leave the
screws finger-tight, and tighten them after the switch is installed.
See the figures below.
DS-16M Round-Hole
Channel, Rack Rear
(for example,
CLARiiON Rack/Cabinet)
DS-16M Square-Hole
Channel, Rack Rear
(for example, Third Party
10. Repeat steps 1 through 9 for the other rail.
Rack/Cabinet)
EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
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Installing the DS-16M and DS-32M Rails
DS-32M Rails Installation
There are two different length rails: the short rails range from 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-32M Short Rails
(for the CLARiiON Rack/Cabinet)
Rear
Front
DS-32M Long Rails
(for 3rd Party Racks/Cabinets)
Rear
The front and rear flanges of the DS-32M rails have four screw holes.
See the figure below.
Front Flange
NOTE: 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.
Rear Flange
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EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
Page 13
Installing the DS-16M and DS-32M Rails
Select the appropriate length rails, and follow the steps below to
install them.
1. Assemble the rails.
The rails assembly consists of an adjustable rail, a C channel, and
two washers and nuts. See the figure below.
C channel
Adjustable rail
a. Insert the threaded posts on the C channel into the slot on the
adjustable rail.
b. Secure the rail to the C channel with two #10 flat washers and
M5 kep nuts. Leave the nuts finger-tight.
2. Determine where in the rack/cabinet you are going to locate the
switch.
The left/right orientation of the rails is determined by the
location of the word “top” on the C channel. The rail is oriented
correctly when the word “top” is up and toward the rack/cabinet
front. See the figure below.
"Top" up and to the
rack/cabinet
front
EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
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Installing the DS-16M and DS-32M Rails
3. Adjust the length of the rail to fit between the channels in the
rack/cabinet.
NOTE: The rail flanges go to the inside of the channels.
4. Once the rails are adjusted to the correct length, tighten the kep
nuts.
NOTE: If the side skins are removed on the rack/cabinet, you can tighten
the kep nuts after you install the rails.
5. Align two of the holes of the front rail flange to two holes on the
inside of the front channel. The top screw hole is used for the
screw; the bottom screw hole is used for the ball stud when
installing in a 39U cabinet.
Flange to the inside
of the channel
6. If you are installing a switch in a 39U cabinet, secure the rail to a
round-hole channel with one M5 x 12 mm pan-head screws and
one #10 flat washer and ball stud (see the table on page 3), or
secure the rail to a square-hole channel with one square-hole
washer and M5 x 16 mm screw and one #10 flat washer and ball
stud (see the table on page 3). Leave the screw and ball stud
finger-tight. Tighten them after the switch is installed. See the
figures below.
NOTE: The ball studs support the bezel.
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EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
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Installing the DS-16M and DS-32M Rails
S
S
DS-32M Round-Hole
Channel, Rack Front
DS-32M Square-Hole
Channel, Rack/Cabinet Front
If you are installing the switch in a 40U cabinet, use the appropriate
screws to install the latch bracket (instead of the ball stud) to the
outside edge of the channel as you secure the rail. To attach the
bottom latch bracket screw, install an M5 clip nut over the
aligning hole in the channel. See the following figure.
Screw
tep 1
Left Front
Switch
Mounting Rail
Screw
(2)
Clip Nut
tep 2
2U Bracket
(Left)
Switch
Mounting Rail
Left Front
EMC2421
7. Align two holes in the rear, u-shaped flange of the rail with two
EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
holes in the rear inside channel.
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Installing the DS-16M and DS-32M Rails
8. Secure the rail to a round-hole rear channel with two M5 x 12 mm
screws (see the table on page 3), or secure the rail to a square-hole
rear channel with two square-hole washers and M5 x 16 mm
screws (see the table on page 3). Leave the screws finger-tight,
and tighten them after the switch is installed. See the figure
below.
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EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
DS-32M
Round-Hole
Channel, Rear
DS-32M Square-Hole
9. Repeat steps 1 through 8 for the other rail.
Channel, Rear
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Installing the DS-16M2 and DS-32M2 Switches
Installing the DS-16M2 and DS-32M2 Switches
This section describes the procedures for installing the DS-16M2 and
DS-32M2 switches in a rack/cabinet, including attaching the brackets
on the switch. Both switches are installed in the rack/cabinet the
same way. Note, however, that the DS-16M should be positioned at
the top of the rack/cabinet, above the DS-32M.
Mounting Bracket Installation
NOTE: The mounting brackets are the same for both the DS-16M2 and
DS-32M2.
You must attach mounting brackets to the switch before installing it
on the rails. The mounting brackets slide into the C channel of the
rails.
Follow the steps below to attach the mounting brackets to the switch.
1. Orient the L-shaped end of the bracket upward and to the fan end
of the switch as shown in the figure below.
At the fan end of the switch
2. Place the bracket against the switch with the counter-sunk screw
holes facing outward. Align the five screw holes in the bracket
with the five screw holes on the side of the switch.
To guarantee that all the screw holes in the bracket orient correctly with
the screw holes in the switch, first align the bracket’s middle screw hole
with the middle screw hole in the switch.
EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
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Installing the DS-16M2 and DS-32M2 Switches
!
CAUTION
The kits include two (2) sets of screws. To avoid damaging the
screw holes, be sure to check the labeling on the bags and use the
appropriate set of screws for your chassis. The chassis product
number is located on labels at the back and on the bottom of the
chassis.
Align middle hole first
3. Secure the bracket with five 6-32 x .31 flat-head screws (see the
table on page 3). Tighten the screws fully.
Fan end of switch
Installing the Switch in the Rack/Cabinet
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EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
4. Repeat steps 1 through 3 above for the other side of the switch.
Follow the steps below to install the switch in the rack/cabinet.
1. Lift and orient the switch so that the fan end is to the front of the
rack/cabinet.
2. Align the bracket on each side of the switch with the C channel on
each fixed rail.
3. Push the switch about 3/4 of the way into the rack/cabinet.
4. Tighten the rear screws securing the rails to the rear of the
rack/cabinet.
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Installing the DS-16M2 and DS-32M2 Switches
5. Push the switch further into the rack/cabinet until the hole in the
front part of each bracket (the “L”-shaped end) aligns with the
hole on the fixed rail. See the figure below.
C channel
Align hole in bracket
with hole in the fixed rail
6. Tighten the front screws securing the rails to the front of the
rack/cabinet.
7. Secure the brackets to the rails with two M3 x 8 mm pan-head
screws (see the table on page 3), one on each side, as shown
below.
EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
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Installing the DS-16M2 and DS-32M2 Switches
8. Install the bezel by positioning and installing the bezel stud
Front View of 32-port Switch Installed in a 39U Rack
Rear View of 32-port Switch Installed in a 39U Rack
receptacles on the back of the bezel over the ball studs (39U rack)
or latch brackets (40U rack) on the rail ends.
9. Push the bezel onto the ball studs or latch brackets until it snaps
and locks into place. The illustration below shows an installed,
unpainted 16-port bezel in a 39U rack.
10. Plug one of the supplied power cords into each of the switch’s
two power receptacles.
11. When installing the DS-16M2 switch, run the power cords up in
front of the units and over the top of the uppermost switch.
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EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
Page 21
Installing the DS-16M2 and DS-32M2 Switches
NOTE: There is a 3-inch space between the front of the switch and the back of
the bezel. This is enough room to loop the cord up without pushing the bezel
off.
12. When installing the DS-32M2 switch, the 2U spacing allows you
to run the power cords between the switches.
13. Secure the power cords in the retainer clips, and route them down
the trough along the edge of the rear of the rack. See the figures
below.
Secure cords with
retainer clip
Run cables
down trough
14. Plug the other end into available receptacles on the PDU.
EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
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Installing the DS-16M2 and DS-32M2 Switches
!
CAUTION
If you are removing the switches from the cabinet, you must
remove the top switch from the back of the cabinet. You can remove
all switches below the top switch from the front.
15. Attach the fibre-optic cables to the switch and run the cables from
the switch to the appropriate device. Ensure each fibre-optic
cable has a minimum bend radius of 2 inches.
Copyright © 2002 EMC Corporation. All Rights Reserved.
EMC believes the information in this publication is accurate as of its publication date. The information is subject to
change without notice.
THE INFORMATION IN THIS PUBLICATION IS PROVIDED "AS IS." EMC CORPORATION MAKES NO
REPRESENTATIONS OR WARRANTIES OF ANY KIND WITH RESPECT TO THE INFORMATION IN THIS
PUBLICATION, AND SPECIFICALLY DISCLAIMS IMPLIED WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE.
Use, copying, and distribution of any EMC software described in this publication requires an applicable software
license.
Trademark Information
EMC2, EMC, CLARiiON, and Navisphere are registered trademarks and Access Logix, SnapView and MirrorView are trademarks of EMC Corporation.
All other trademarks mentioned herein are the property of their respective owners.
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EMC Departmental Switches DS-16M2 and DS-32M2 Installation Guide
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