Sun Microsystems 5500, Installation Manual

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2-8 Sun Enterprise 6500/5500/4500 Systems Installation Guide • August 2001
TABLE 2-1
lists the cabling limitations for Ethernet.
FIGURE 2-8
shows an example of a typical network setup. The Sun Enterprise 6500/
5500/4500 systems can be any server shown in this figure.
FIGURE 2-8
Ethernet Cabling Length — Example Using N-type Cable
TABLE 2-1
Ethernet Cabling Limitations for N-type Coaxial Cable
Cable Segment Length in Meters
Allowed contiguous length of cable segments 23.4
70.2
117.0
500.0
1
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.
Distance between transceivers (multiples-of) 2.5
2
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.
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.
Note: 5 15 3.4 Meter Extension = 23.4 Meters minimum length allowed.
5 Meters
Terminator
15 Meters
Server or
workstation
Transceiver
Transceiver drop cable
Twisted pair cable
Transceiver Transceiver
Server or
workstation Server or
workstation
3.4 Meter
Extension