4-1
Chapter 4: Making Network Connections
Connecting Network Devices
The ES3526S switch is designed to provide high-speed Internet access to individual
subscribers through its 100BASE-FX single-fiber downlink connections. Two
combination 1000BASE-T/SFP ports provide the uplink connection from the switch
to other switches or routers at the central office. One dedicated 100BASE-TX
management port is provided for connection to an Ethernet switch or hub for
management access to the switch.
Twisted-Pair Devices
Each device requires a shielded or unshielded twisted-pair (STP or UTP) cable with
RJ-45 connectors at both ends. For 100BASE-TX connections, Category 5 or better
cable is required; for 10BASE-T, Category 3 or better cable can be used.
For 1000BASE-T connections, Category 5, 5e, or 6 (recommended) cable is
required with all four wire pairs connected. You should also test the cable installation
for IEEE 802.3-2002 Gigabit Ethernet compliance. See “Twisted-Pair Cable and Pin
Assignments” on page B-1.
Cabling Guidelines
The 1000BASE-T RJ-45 ports all support automatic MDI/MDI-X operation, so you
can use straight-through cables for all network connections to PCs, hubs, switches
or routers.
The management port labeled Net Management is fixed with an MDI-X pinout. You
can use a straight-through cable to connect directly to a PC. However, if connecting
to a network switch or hub port that does not support automatic MDI/MDI-X, use a
crossover cable.
See Appendix B for further information on cabling.
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