Appendix B: Cables; Specifications; Twisted-Pair Cable And Pin Assignments - Accton Technology VM2524 Installation Manual

Appendix B: Cables

Specifications.

Cable Type
10BASE-T Cat. 3, 4, 5 100-ohm UTP
100BASE-TX Cat. 5 100-ohm UTP
1000BASE-SX 50/125 or 62.5/125 micron core MMF
1000BASE-LX 9/125 micron SMF
1000BASE-LH 9/125 micron SMF
100BASE-FX 50/125 or 62.5/125 micron multimode fiber
optic cable
100BASE-FX 9/125 micron single-mode fiber optic cable 20 km (12.43 miles)
1000BASE-T Cat. 5, 5e 100-ohm UTP
Fiber Diameter
62.5/125 micron MMF
50/125 micron MMF

Twisted-Pair Cable and Pin Assignments

Caution: DO NOT plug a phone jack connector into any RJ-45 port. Use only twisted-pair
cables with RJ-45 connectors that conform with FCC standards.
Caution: Each wire pair must be attached to the RJ-45 connectors in a specific
orientation. (See "Cabling Guidelines" on page 4-1 for an explanation.)
Figure B-1 illustrates how the pins on the RJ-45 connector are numbered. Be sure to
hold the connectors in the same orientation when attaching the wires to the pins.
Cable Types and Specifications
1000BASE-SX Fiber Specifications
Fiber Bandwidth
160 MHz/km
200 MHz/km
400 MHz/km
500 MHz/km
Figure B-1. RJ-45 Connector Pin Numbers
Max. Length
100 m (328 ft)
100 m (328 ft)
See the following table
5 km (3.12 miles)
70 km (43.5 miles)
2 km (1.24 miles)
100 m (328 ft)
Maximum Cable Length
2-220 m (7-722 ft)
2-275 m (7-902 ft)
2-500 m (7-1641 ft)
2-550 m (7-1805 ft)
Connector
RJ-45
RJ-45
SC or ST
SC or ST
SC or ST
MTRJ
MTRJ
RJ-45
B-1