Cabletron Systems SEHI-34 Manual Do Utilizador

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INSTALLATION REQUIREMENTS/SPECIFICATIONS
 
Page 2-1
 
CHAPTER 2
INSTALLATION
REQUIREMENTS/SPECIFICATIONS
 
This Chapter describes cabling requirements, network guidelines, and 
operating specifications for the SEHI. Be sure to read this chapter 
before you install the SEHI. Your network must meet the 
requirements and conditions specified in this chapter to obtain 
satisfactory performance from this equipment. Failure to follow these 
guidelines could result in poor network performance.
 
2.1
CABLE SPECIFICATIONS
 
The SEHI network ports support both Shielded Twisted Pair (STP) or 
Unshielded Twisted Pair (UTP) cabling. The Ethernet Port Interface 
Modules (EPIMs) let you expand your network using UTP, STP, 
Multimode Fiber Optic, Single Mode Fiber Optic, or Thin Coaxial 
cabling. The rear panel Interconnect Bus port supports Cabletron 
Systems’ HubSTACK Interconnect cables for stackable applications.
Take care in planning and preparing the cabling and connections for 
your network. The quality of the connections and the length of cables 
are critical factors in determining the reliability of your network. The 
following sections describe specifications for each media type.
 
2.1.1
HubSTACK Interconnect Cable Requirements
 
You stack the SEHI to modules in the stack with the SEHI 
HubSTACK Interconnect cable available only from Cabletron 
Systems. Refer to Chapter 1 for cable part numbers.The cable attaches 
to the SEHI’s rear panel bus port.
The rear panel of the SEHI has an Interconnect Bus Out port (male 
connector) to stack SEH non-intelligent hubs together. You can stack 
as many as four SEH’s together with one SEHI.