Sun Microsystems 6000, 4000, 5000 manual Lists the cabling limitations for Ethernet

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Table 2-1 lists the cabling limitations for Ethernet.

Table 2-1Ethernet Cabling Limitations for N-type Coaxial Cable

Cable Segment	Length in Meters
Allowed contiguous length of cable segments	23.4
	70.2
	117.0
	500.01
Distance between transceivers (multiples-of)	2.52
Minimum length of Ethernet coaxial cable segments	23.4
Maximum length of transceiver “drop” cable	50.0
Minimum length of twisted pair cable	no minimum
Maximum length of twisted pair cable	110

1.Finite lengths (as constrained by transmission line phenomena). Minimum length = 23.4M; maximum = 500M. If cable falls shorter than one of these values, add cable to achieve next-highest value.

2.Transceivers are placed at intervals of 2.5 meters, or multiples of 2.5 meters along the Ethernet cable. Example: transceivers are connected 2.5 meters apart, not 2.0 meters.

Example: transceivers are connected 15 meters apart (6 multiples of 2.5 meters), not 14.0 meters.

Figure 2-9 shows an example of a typical network setup. The Ultra Enterprise 6000/5000/4000 systems can be any server shown in this figure.

			5 Meters			15 Meters			3.4 Meter
	Transceiver				Transceiver			Transceiver
									Extension
		Transceiver drop cable
		Twisted pair cable							Terminator
Server or workstation				Server or workstation			Server or workstation

Note: 5 Meters + 15 Meters + 3.4 Meter Extension = 23.4 Meters minimum length allowed.

Figure 2-9Ethernet Cabling Length — Example Using N-type Cable

Cabling the System 2-9