Cabletron Systems SEHI100TX manual Chapter Installation Requirements Specifications

CHAPTER 3

INSTALLATION REQUIREMENTS

AND SPECIFICATIONS

This Chapter describes cabling requirements, network guidelines, and operating specifications for the SEHI100TX-22.

!

C AUT IO N

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.

3.1CABLE SPECIFICATIONS

The front panel SEHI100TX-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) 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 describe specifications for each media type.

3.1.1HubSTACK Interconnect Cable Requirements

Attach the SEHI to the stacked SEH modules with the HubSTACK Interconnect cables provided with each SEH and available only from Cabletron Systems (P/N 9380209). The cable attaches to the SEHI rear panel bus “OUT” port. The SEHI must be placed at the bottom of the stack. Stack up to four SEH hubs together with one SEHI.

SEHI100TX User’s Guide 3-1