SecureStack A2 Installation Guide   2-1
2
Network Requirements
Beforeinstallingthedevice,reviewtherequirementsandspecificationsinthischapter
concerningthefollowing:
10BASE-TX Twisted Pair Network
Whenconnectinga10BASE‐TXsegmenttooneofthefixedRJ45ports(oddnumbered
ports1‐15),ensurethatthenetworkmeetstheEthernetnetworkrequirementsoftheIEEE
802.3‐2002standardfor10BASE‐TX.RefertotheCablingGuidefordetails.
For information about... Refer to page...
10BASE-TX Twisted Pair Network 2-1
100BASE-TX Twisted Pair Network 2-2
1000BASE-T Twisted Pair Gigabit Ethernet Network 2-2
100BASE-FX Multimode Fiber-Optic Network 2-2
1000BASE-FX Fiber-Optic Network 2-3
Note: The network installation must meet the requirements described in this chapter to 
ensure satisfactory performance of this equipment. Failure to do so will produce poor 
network performance.
Note: The SecureStack A2 Configuration Guide and the Cabling Guide referred to in the 
following sections can be found on the Enterasys Networks World Wide Web site: 
http://www.enterasys.com/support/manuals
For details about obtaining the manuals, refer to “Related Documents”  on page xiv.
Note: If a port is to operate at 100 or 1000 Mbps, Category 5 cabling must be used. 
Category 3 cabling does not meet the 100 or 1000 Mbps specifications. For 10 Mbps 
operation only, Category 3, Category 4, or Category 5 cabling can be used. Refer to 
100BASE-TX Twisted Pair Network (page 2-2) and 1000BASE-T Twisted Pair Gigabit 
Ethernet Network (page 2-2) for information about 100BASE-TX and 1000BASE-T 
networks and cabling.