Sun Microsystems 6500 Installation Manual page 40

TABLE 2-1
TABLE 2-1
Cable Segment
Allowed contiguous length of cable segments
Distance between transceivers (multiples-of)
Minimum length of Ethernet coaxial cable segments
Maximum length of transceiver "drop" cable
Minimum length of twisted pair cable
Maximum length of twisted pair cable
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 2-8
5500/4500 systems can be any server shown in this figure.
5 Meters
Transceiver
Transceiver drop cable
Twisted pair cable
Server or
workstation
Note: 5 Meters + 15 Meters + 3.4 Meter Extension = 23.4 Meters minimum length allowed.
FIGURE 2-8
2-8 Sun Enterprise 6500/5500/4500 Systems Installation Guide • August 2001
lists the cabling limitations for Ethernet.
Ethernet Cabling Limitations for N-type Coaxial Cable
shows an example of a typical network setup. The Sun Enterprise 6500/
Transceiver
Server or
workstation
Ethernet Cabling Length — Example Using N-type Cable
15 Meters
Transceiver
Server or
workstation
Length in Meters
23.4
70.2
117.0
1
500.0
2
2.5
23.4
50.0
no minimum
110.
3.4 Meter
Extension
Terminator