3Com WX2200 Hardware Installation Guide - Page 27

Installation Requirements and Recommendations 27 Table 7 Ethernet Interfaces (continued) Link Type 1000BASE-LX 1000BASE-TX Cable Type Connector Maximum Type Distance Single mode 9/10-µm fiber SC 10,000 m (32,808.4 feet) Multimode 50-µm fiber SC 550 m (1804.5 feet) Multimode 62.5-µm fiber SC 550 m (1804.5 feet) Cat 5 copper RJ-45 Can use straight-through or crossover signaling, provided all four wire pairs are connected 100 m (328 feet) The WX1200 supports 10/100 Ethernet connections. Table 8 lists the link type and properties of the supported connections. Table 8 Ethernet Interfaces Link Type 10/100BASE-T Cable Type Cat 5 copper Straight-through or crossover signaling Connector Type RJ-45 Maximum Distance 100 m (328 feet) 10/100 Ethernet Cable Wiring Connections on the 10/100 ports require Category 5 (Cat 5) cable based on the EIA/TIA-586 standard. For direct connection to a MAP access point, a router, or an end station such as a PC, printer, or server, use a straight-through cable. For direct connection to another switch, use a crossover cable. (The 10/100 Ethernet ports on the WX1200 switch provide automatic MDI/MDX, which automatically crosses over the send and receive signals if required.) Table 9 on page 28 lists the pin signals for 10/100 Ethernet straight-through wiring. Pins 4, 5, 7, and 8 are used only when Power over Ethernet (PoE) is enabled on the port. RD means Receive Data and TD means Transmit Data.