
determine whether the device at the other end of the link is a hub, switch, or workstation, and adjust its signals
accordingly. No crossover cables are req uired.
Although 10/100BaseT requires only pins 1, 2, 3, and 6, you should us e cables with all eight wires connected as
shown in Table 2-2 below.
1000BaseT requires that all four pairs (8 wires) be connected correctly, using Categor y 5 or better Unshielded
Twisted Pair (UTP) cable (to a distance of 100 meters). Table 2-2 shows the correct pairing of all eight wires.
Pin Number Pair Number & Wire Colors
1 2 White / Orange
2 2 Orange / White
3 3 White / Green
4 1 Blue / White
5 1 White / Blue
6 3 Green / White
7 4 White / Brown
8 4 Brown / White
2.5.2 Gigabit Ethernet Ports Cabling Procedures
Cabling requirements for the optional hardware modules depend on the type of module installed. Use the following
guidelines to determine the particular cabl ing requirements of the module(s):
• 1000BaseSX GBIC: Cables with SC-type fiber connectors; 62.5µ multi-mode fiber (MMF) media up to 275 m
(902'), or 50µ MMF media up to 550 m (1805' )
• 1000BaseLX GBIC: Cables with SC-type fiber connectors; 10µ single-mode fiber media up to 5 km (16,405')
• 1000BaseLH GBIC: Cables wit h SC-type fiber connectors; 10µ single-mode fiber media up to 20 km (65,617')
• 1000BaseLX Long H aul GBIC: Cables with SC-type fiber connectors; 10µ single-mode fiber media up to 100 km
(328,100')
18 Asante IntraCore IC39240/480 User’s Manual