Figure 2-5 Connecting Twisted Pair Ethernet To N-Type Coaxial Cable; Table 2-1 Ethernet Cabling Limitations For N-Type Coaxial Cable - Sun Microsystems SPARCserver 1000 System Installation Manual

Ethernet cable
Transceiver drop cable
Vampire tap or
N-type connectors
Ethernet cable
Transceiver
Multiplex panel (or a single
port interface box)
Figure 2-5 Connecting Twisted Pair Ethernet to N-type Coaxial Cable
Table 2-1 Ethernet Cabling Limitations for N-type Coaxial Cable
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 2-6 shows an example of a typical network setup. The
SPARCserver 1000 system can be any server shown in this figure.
If termination is required, install a 50-ohm terminator in the unused
transceiver N connector or the end of the coaxial cable. Use a female double
N-type connector.
Setting Up the System
Additional transceiver
Twisted pair cable
Length in Meters
23.4
70.2
117.0
500.0
2.5
23.4
50.0
no minimum
110
2
Ethernet cable
SPARCserver
1000
1
2
2-5