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Page 3-1
CHAPTER 3
Installation
This chapter outlines the procedure for installing the STHI. Confirm that 
the network meets the guidelines and requirements outlined in Chapter 2, 
Requirements & Specifications
, before installing the STHI.
3.1 Installing the STHI
The STHI may be installed as a stand-alone hub or as part of a stack. 
Provided with the STHI is an accessory kit that includes rack-mount 
brackets for installations into 19 inch racks, wall-mount brackets and 
mounting screws for installations on walls, and a strain relief bracket to 
direct the stresses inflicted by cables hanging from the TCU ports.
All installations must meet the following requirements:
A single phase 120Vac, 15A, grounded power receptacle must be 
located within 7 feet of the STHI.
Shelving units must be able to support 30 pounds of static weight for 
each device in the stack. This accounts for both hub and cable weight.
The ambient temperature must be maintained between -30
°
 and 90
°
at all times and between 5
°
 and 50
°
C during operation.
3.1.1
Unpacking the STHI
Unpack the STHI as follows:
1.
Carefully remove the STHI from the shipping box, preserving the 
packaging materials for future transport.
2.
Visually inspect the STHI. If there are any signs of damage, contact 
Cabletron Systems Technical Support immediately.
3.
Read any Release Notes or Addendums included in the shipping box.
The package includes a 3-1/2” floppy disk containing a 
backup copy of the STHI’s Flash Firmware Image File 
which may be downloaded to the STHI if the original image 
becomes corrupted.
TIP