Utp Cabling Distances Per Ansi Standards; Rj-45 Utp Connector Pin Assignments - 3Com 3C780 - LinkBuilder FDDI Base Unit User Manual

2-22 Installing the Hub
Table 2-2. RJ-45 UTP Connector Pin Assignments
Pin No.
1
2
3
4
5
6
7
8
NOTE: To minimize RF emissions, the connector shell must be connected to hub
ground. Also, the connector shell must completely surround the cable shield.
Figure 2-8. UTP Cabling Distances per ANSI Standards
Function
Transmit (+)
Transmit (–)
Not used
Not used
Not used
Not used
Receive (+)
Receive (–)
Cross-over cable
LinkBuilder FDDI hub
23 ft / 7 m maximum
Punchdown block
295 ft / 90 m maximum
Wall jack
10 ft / 3 m maximum
FDDI end station