Gigabit Ethernet Switch – Hardware Manual
Page 23 of 36
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©2016_MICROSENS GmbH & Co. KG_Küferstr. 16_59067 Hamm/Germany_www.microsens.com
CONNECTIVITY RULES
When adding hubs to your network, please note that because switches break up the
path for connected devices into separate collision domains, you should not include the
switch or connected cabling in your calculations for cascade length involving other
devices.
1000BASE-T CABLE
REQUIREMENTS
All Category 5 UTP cables that are used for 100BASE-TX
connections should also work for 1000BASE-T, providing
that all four-wire pairs are connected. However, it is
recommended that for all critical connections, or any
new cable installations, Category 5e or Category 6 cable
should be used. The Category 5e and 6 specifications
include test parameters that are only recommendations
for Category 5. Therefore, the first step in preparing
existing Category 5 cabling for running 1000BASE-T is a
simple test of the cable installation to be sure that it
complies with the IEEE 802.3-2005 standards
1000 MBPS GIGABIT ETHERNET COLLISION DOMAIN
Maximum 1000BASE-T Gigabit Ethernet Cable Length
Cable Type
Maximum Cable Length
Connector
Category 5, 5e or 6
100-ohm UTP or STP
100.m (328 ft)
RJ-45
Table 6: Maximum 1000BASE-SX Gigabit Fiber Cable Lengths
Fiber Size
Fiber
Bandwidth
Maximum Cable Length
Connector
62.5/125
micron
multimode
fiber
160 MHz/km
200 MHz/km
220 m (722 ft)
275 m (902 ft)
LC
LC
50/125
micron
multimode
fiber
400 MHz/km
500 MHz/km
500 m (1641 ft)
550 m (1805 ft)
LC
LC
Single Mode SFP Transceivers
Refer to the transceiver’s data sheet.
100 MBPS FAST ETHERNET COLLISION DOMAIN
Maximum Fast Ethernet Cable Lengths
Cable Type
Maximum Cable Length
Connector
Category 5, 5e or 6
100-ohm UTP or STP
100.m (328 ft)
RJ-45
