Cabletron Systems SEH100TX-22, User Manual

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SEH100TX User’s Guide 3-1
CHAPTER 3
INSTALLATION REQUIREMENTS
AND SPECIFICATIONS
This chapter describes cabling requirements, network guidelines, and
operating specifications for the SEH100TX-22.
3.1 CABLE SPECIFICATIONS
The front panel SEH100TX-22 network ports support Category 5
Unshielded Twisted Pair (UTP) cabling. Ethernet Port Interface Modules
(EPIMs) expand the network using UTP (EPIM-100TX) or multimode
fiber optic (EPIM-100FX or EPIM-100FMB) cabling. For information
concerning the two EPIM types, refer to Appendix A. The rear panel
Interconnect Bus ports support Cabletron Systems Interconnect cables for
stackable applications.
Take care in planning and preparing the network cabling and connections.
The quality of the connections and the length of cables are critical factors
in determining the reliability of the network. The following sections
provide the specifications for each media type.
3.1.1 HubSTACK Interconnect Cable Requirements
Connect units in the stack together with the HubSTACK Interconnect
cables shipped with the SEH module and available only from Cabletron
Systems (P/N 9380209). The cables attach to the SEH100TX-22 rear
panel bus ports.
The rear panel of the SEH has an Interconnect Bus Out port and an
Interconnect Bus In port to stack hubs together. The bus supports five
stackable devices. Stack up to five SEH hubs together or stack up to four
SEH hubs together with one SEHI100TX-22.
!
CAUTION
The 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.