2E48-27R/2E49-27R User’s Guide2-1CHAPTER 2NETWORK REQUIREMENTSBefore installing the 2E4X-27R or Fast Ethernet Interface Module(FE-100TX, FE-100FX, or FE-100F3), review the requirements andspecifications referred to in this chapter concerning the following:• SmartTrunk (Section 2.1)• 10BASE-F Fiber Optic Network (Section 2.2)• FOIRL Fiber Optic Network (Section 2.3)• 100BASE-TX Twisted Pair Network (Section 2.4)• 100BASE-FX Fiber Optic Network (Section 2.5)The network installation must meet the guidelines to ensure satisfactoryperformance of this equipment. Failure to follow the guidelines mayproduce poor network performance.2.1 SmartTrunkTo connect the 2E4X-27R to a network so it can take advantage of theSmartTrunk feature, there are certain rules concerning port connectionsand configurations that must be followed for proper operation. Refer tothe Cabletron Systems SmartTrunk User’s Guide for additionalinformation.2.2 10BASE-F NETWORKWhen connecting a 10BASE-F segment to any of the 2E48-27R ports(Interfaces 1 through 24), ensure that the network meets the Ethernetnetwork requirements of the IEEE 802.3 standard for 10BASE-F. Refer tothe Cabletron Systems Cabling Guide for details.NOTEThe Cabletron SystemsCabling Guide andSmartTrunk User’sGuide, referred to in the following sections, can be found on theCabletron Systems World Wide Website: http://www.cabletron.com/
