Network Requirements; 100Base-Fx Network; Multimode Fiber Optic Cabling - Cabletron Systems 6H258-17 Installation & User Manual

Before installing the SmartSwitch modules, review the requirements and specifications referred to
in this chapter concerning the following:
•

100BASE-FX Network

• SmartTrunk (Section
The network installation must meet the guidelines in this chapter and in the documents referenced
in this chapter to ensure satisfactory performance of the equipment. Failure to follow the
guidelines may produce poor network performance.
2.1 100BASE-FX NETWORK
When connecting a 100BASE-FX segment to any of the SmartSwitch ports, ensure that the
network meets the optical performance requirements for 100BASE-FX IEEE 802.3u standard.
One module, the 6H258-17, is made specifically for multimode fiber optic cable and the other, the
6H259-17, is made specifically for single mode fiber optic cable. The two modules cannot be used
interchangeably with respect to multimode or single mode fiber optic cable. Refer to
for information on multimode cabling, and
for these modules.
2.1.1

Multimode Fiber Optic Cabling

The 6H258-17 fixed ports use LEDs to support multimode fiber optic cables at the 1300 nm
wavelength, at lengths of up to 2 km.
Refer to the Cabletron Systems Cabling Guide for more details on multimode fiber optic
connections for the 6H258-17.
(Section 2.1)
2.2)
Section 2.1.2

Network Requirements

for information on single mode cabling
Network Requirements
2
Section 2.1.1
2-1