Acer Altos RM900 User manual

Acer Altos RM900

Installation Guide

1Getting Started

Unpack the rack and check the packing list that came with it. Make

sure that you have all components.

The unit of measurement used in this

document is "U" (1U = 1.75 inches or 44.45

mm). The total sum of the heights of all

components in the rack measured in "U"

cannot exceed the height of the rack.

1.1 Standard Components

The standard rack consists of the following:

•Removable vented front and rear doors

•Removable side panels

•Stabilizing feet

•Leveling feet

•Casters

•Cable management brackets

•M6 washer-face screws

•M6 cage nuts

1.2 Optional Components

•Acer Altos 1100, 11000, 12000, and 21000 server rackmount kit

•Fixed monitor shelf

•One 19-inch keyboard/touchpad with sliding shelf

•4-port keyboard/mouse/monitor switch box

•Blanking panel kit (one 1U, one 2U, and one 3U)

•Acer Altos storage subsystem

1.3 Screw Types Used

The following screws are used in the assembly of the Acer Altos

RM900 and other rack-mountable components:

Screw Type Figure Usage

M4 metal screw Securing the component

rail to the mounting rail.

See section 8.1

M5 metal screw Securing the system

components and the

mounting brackets to the

rack

M6 washer-face

metal screw

Securing the system

components to the rack

M6 thumbscrew Securing the server

system to the rack (for

Acer Altos 1100 server)

Screw Type Figure Usage

#6-32 screw Installing the front panel to

the server system (for

Acer Altos 11000, 12000,

and 21000 server)

#6-32

thumbscrew

Securing the server and

front panel to the rack (for

Acer Altos 11000, 12000,

and 21000 server)

M5 metal tapping

screw

Securing the cable

bracket to the rack (comes

with the cable bracket

package)

Cage Nut Supports the M6 metal

screws for securing

system components to the

rack

2Features

2.1 Front View

The following figure shows the front view of the Acer Altos RM900:

Figure 1 The Acer Altos RM900 (42U Rack) - Front View

Vents

Front Door

Side Panel

Handle with Lock

Stand and

Stabilizing Foot

2.2 Rear View

The following figure shows the rear view of the Acer Altos RM900:

Figure 2 The Acer Altos RM900 (42U Rack) - Rear View

Rear door

Handle

Leveling foot

(beside caster)

Fan

2.3 Inside Components

The following figure shows the different components that can be

installed in the Acer Altos RM900:

Figure 3 A Typical Acer Altos RM900 Enclosure

Monitor

Blanking panelBlanking panel

Storage subsystems

Switchbox

Keyboard/touchpad

with sliding shelf

Server

UPS

2.4 Vertical Mounting Hole Pattern

The four vertical rails of the Acer Altos RM900 contain square

mounting holes arranged in a manner shown in this figure:

Figure 4 Vertical Square Mounting Hole Spacing

The distance from the center of two holes with closer spacing to the

center of the next pair is equivalent to 1U.

When installing components, you must start your measurement from

the center of the two holes with closer spacing. Otherwise, the screw

holes on the component may not match with those on the rack.

0.25”

0.625”

0.625

0.5”

0.625”

0.5”

3Positioning the Rack

The rack comes with casters to help you move it easily from one

place to another.

To position the rack:

1. Allow the following minimum clearances:

For operation: Leave at least 46 cm (1.5 ft) of clearance in front

of the rack and 31 cm (1 ft) behind the rack to allow adequate

airflow.

For servicing: Allow 61 cm (2 ft) of space behind the rack and

165 cm (65 inches) in front of the rack.

2. After you have positioned the rack, locate the two stabilizing feet

and the two leveling feet placed just next to each caster. These

feet are used for support to ensure that the rack is stable and to

compensate for uneven floors when leveling the rack. See step

2 of Figure 5.

3. Pull out the two stabilizing feet. See step 3 of Figure 5.

4. Rotate each foot to adjust it. Continue adjusting the feet until the

rack is level. See step 4 of Figure 5.

Make sure the rack is stable.

Step 2 Step 3

Step 4

Figure 5 Adjusting the Rack Feet

4Opening and Closing the Door

The rack has one front door and one rear door. Both doors are

vented and can be opened easily.

To open the rack's front or rear door:

1. Slide the keylock cover as far as it will go, press the keylock

button to automatically release the handle. If the door is locked,

unlock it using the key.

2. Rotate the handle 90 degrees counter-clockwise until the latch

releases, and then pull open the door.

Step 1 Step 2

Figure 6 Opening the Rack Door

To close the rack's front or rear door:

1. Shut the door and rotate the handle clockwise to its original

position.

2. Push the handle until it clicks.

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