Ethernet Cabling 119

Use two twisted-pairs for each link.

Use twisted-pair wire that is 22-26 AWG (0.5 millimeter) in diameter.

Use twisted-pair wire with an impedance between 85 and 115 ohms.

Make sure that the maximum twisted-pair link length from the system to any potential workstation location is 100 meters (328 feet).

Cable Pinouts Management connections may be established with a direct cable link to a PC-AT serial port, or via modem. The following tables detail cable pinouts for 9 and 25 pin PC-AT links, and for a modem connection.

CoreBuilder 7000 Serial Port

The CoreBuilder 7000 provides a standard DB-9 connector for management connections (refer to Figure 17). Table 31 details the pinout and functions for this connector. The CoreBuilder 7000 plays the standard role of a DCE.

Figure 17 Serial Port Pinouts

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3Com manual CoreBuilder 7000 Serial Port, Serial Port Pinouts

7000 specifications

The 3Com 7000 is a robust and versatile networking solution designed to meet the demands of enterprise environments. Renowned for its reliability and scalability, the 3Com 7000 is highly suitable for organizations requiring efficient data handling and enhanced network performance. This multi-layer switching platform integrates advanced technologies, making it a preferred choice for modern businesses.

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