Cabletron Systems 2H253-25R Manuale Utente

Installing the Device

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.

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.

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.

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)