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Chapter 3: Installation
3-4 2E48-27R/2E49-27R User’s Guide
Figure 3-1 Tabletop or Shelf Installation
3.3.2 Rackmount Installation
To install the 2E4X-27R in a 19-inch rack, Cabletron Systems includes an
accessory kit containing the rackmount brackets, mounting screws, and a
strain-relief bracket for cable management.
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 2E4X-27R.
WARNING
Before installing the 2E4X-27R 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.
23142-06
A = 15 cm (6 in)
B = 45 cm (22.5 in)
C = 53 cm (21 in)
C
B
A
D
D = 213 cm (84 in)
2625
RX
TX
RX
TX
24
RX
TX
8
RX
TX
16
RX
TX
23
RX
TX
7
RX
TX
15
RX
TX
22
RX
TX
6
RX
TX
14
RX
TX
21
RX
TX
5
RX
TX
13
RX
TX
20
RX
TX
4
RX
TX
12
RX
TX
19
RX
TX
3
RX
TX
11
RX
TX
18
RX
TX
2
10
17
RX
TX
1
RX
TX
9
RX
TX
COM
RESET
2E48-27R
PWR
CPU