Aruba JL255A - Technology Distance Specifications

Multimode fiber 62.5/125 μm or 50/125 μm (core/
cladding) diameter, low metal
content, graded index fiber-optic
cables, complying with the ITU-T G.
651 and ISO/IEC 793-2 Type A1b or
A1a standards respectively.
1
Single mode fiber 9/125 μm (core/cladding) diameter,
low metal content fiber-optic cables,
complying with the ITU-T G.652 and
ISO/IEC 793-2 Type B1 standards.
1
A mode conditioning patch cord may be needed for some Gigabit-LX and 10-Gigabit LRM installations.
Note on 1000BASE-T cable requirements
The Category 5 networking cables that work for 100BASE-TX connections should also work for 1000BASE-T, as
long as all four-pairs are connected. But, for the most robust connections, you should use cabling that complies
with the Category 5e specifications, as described in Addendum 5 to the TIA-568-A standard (ANSI/TIA/EIA-568-
A-5).
Because of the increased speed provided by 1000BASE-T (Gigabit-T), network cable quality is more important
than for either 10BASE-T or 100BASE-TX. Cabling plants being used to carry 1000BASE-T networking must
comply with the IEEE 802.3ab standards. In particular, the cabling must pass tests for Attenuation, Near-End
Crosstalk (NEXT), and Far-End Crosstalk (FEXT). Additionally, unlike the cables for 100BASE-TX, the
1000BASE-T cables must pass tests for Equal-Level Far-End Crosstalk (ELFEXT) and Return Loss.
When testing your cabling, be sure to include the patch cables that connect the switch and other end devices to
the patch panels on your site. The patch cables are frequently overlooked when testing cable and they must also
comply with the cabling standards.
Technology distance specifications
Table 16: Technology distance specifications
Technology Supported cable
type
Multimode fiber modal
bandwidth
Supported distances
100-FX multimode fiber any up to 2,000 meters
1000-T twisted-pair copper N/A up to 100 meters
1000-SX multimode fiber
160 MHz*km
200 MHz*km
400 MHz*km
500 MHz*km
2 - 220 meters
2 - 275 meters
2 - 500 meters
2 - 550 meters
1000-LX
multimode fiber
single mode fiber
400 MHz*km
500 MHz*km
N/A
2 - 550 meters
2 - 550 meters
2 - 10,000 meters
1000-LH single mode fiber N/A 10 - 70,000 meters
1
1000-BX single mode fiber N/A 0.5 - 10,000 meters
Table Continued
Chapter 6 Cabling and technology information 65