Server User Manual

CablingtheSystem 2-9
2
Table 2-1 lists the cabling limitations for Ethernet.
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.
Figure 2-9 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. Finitelengths(as constrainedbytransmissionlinephenomena).Minimumlength=23.4M;maximum=500M.
Ifcablefallsshorter thanone ofthesevalues, addcable toachieve next-highestvalue.
Distance between transceivers (multiples-of) 2.5
2
2. Transceiversareplacedatintervalsof 2.5meters, ormultiplesof 2.5meters alongthe Ethernetcable.
Example:transceiversareconnected2.5 metersapart,not2.0 meters.
Example:transceiversareconnected15 metersapart(6multiples of2.5 meters),not14.0 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 Meters + 15 Meters + 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