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2 rackmount installation, Rackmount installation -4, Tabletop or shelf installation -4 – Cabletron Systems 2H253-25R User Manual

Page 34: Wn in, Figure 3-1, Reset

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Installing the Device

3-4

Installation

Figure 3-1

Tabletop or Shelf Installation

3.3.2

Rackmount Installation

To install the 2H253-25R in a 19-inch rack, Cabletron Systems includes a strain-relief bracket for
cable management and an accessory kit containing the rackmount brackets, and mounting screws
to attach the rackmount brackets and strain-relief bracket.

Guidelines for the Rackmount Installation

The installation site must be within reach of the network cabling and meet the requirements listed
below:

An appropriate grounded power receptacle must be located within seven feet of the location.

Maintain a temperature of between 5

°

C (41

°

F) and 40

°

C (104

°

F) at the installation site with

fluctuations of less than 10

°

C (18

°

F) per hour.

!

CAUTION

To ensure proper ventilation and prevent overheating, leave a minimum clearance space
of 5.1 cm (2.0 in) at the left, right, and rear of the 2H253-25R.

WARNING

Before installing the 2H253-25R

into a rack, ensure that the rack supports the device(s)

without compromising the stability of the rack. Otherwise, personal injury and/or
equipment damage may result.

2762-02

A = 15 cm (6 in)
B = 57 cm (22.5 in)
C = 53 cm (21 in)

C

B

A

D

D = 213 cm (7 ft)

2H253-25R

COM

PWR
CPU

RESET

LED
MODE

RX-TX

DPX-SPD

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2

3

4

5

6

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10

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