Tabletop or Shelf Installation
SEHI100TX User’s Guide 4-3
4.3 TABLETOP OR SHELF INSTALLATION
This section provides guidelines for installation on a tabletop or shelf.
Tabletop and shelf installations must be within reach of the network
cabling and meet the requirements listed below:
• In a shelf installation, the shelf must be able to support 30 pounds of
static weight for each device in the stack.
• 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 per hour.
The SEHI must be located within seven feet of its power source and with
an unrestricted free surface area as shown in Figure 4-2.
Figure 4-2 Tabletop or Shelf Installation
Proceed to Section 4.5, Powering Up and Stacking the SEHI.
4.4 RACKMOUNT INSTALLATION
To install the SEHI in a 19-inch rack, Cabletron Systems provides a kit
with the SEHI that includes rackmount brackets, mounting screws, and a
strain-relief bracket for cable management.
!
CAUTION
In order to allow for proper cooling, there must be a two-inch
clearance on either side and the back of the unit.
21 IN.
6 IN.
18 IN.
7 FT.
1511_03
PWR
CPU
CLN
HubSTACK
100BASE-TX HUB
WITH
LANVIEW®
SEHI
100TX-
22
22X 21X 20X 19X 18X 17X
11X 10X 9X 8X 7X 6X
16X 15X 14X 13X 12X
5X 4X 3X 2X 1X
E
1
A
RCV
LNK
RCV
LNK
22 21 20 19 18 17 16 15 14 13 12
11 10 9 8 7 6 5 4 3 2 1
EPIM
1
