INSTALLATION REQUIREMENTS/SPECIFICATIONS
Page 2-1
CHAPTER 2INSTALLATIONREQUIREMENTS/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.