HP ProCurve 2510G Series Installation And Getting Started Manual page 24

Installing the Switch
Installation Procedures
Port Type Cable Type
Gigabit-SX Multimode fiber-optic cables designed for
Gigabit Ethernet: 62.5/125 μm or 50/125 μm
(on Gigabit-SX-LC
mini-GBIC) (core/cladding) diameter, low metal content,
graded-index cables, fitted with LC connectors.
The cables must comply with the ITU-T G.651
and ISO/IEC 793-2 Type A1b or A1a standards.
Gigabit-LX Single-mode fiber-optic cables designed for
Gigabit Ethernet: 9/125 μm (core/cladding)
(on Gigabit-LX-LC
mini-GBIC) diameter, 1310 nm, low metal content cables,
fitted with LC connectors. The cables must
comply with the ITU-T G.652 and ISO/IEC 793-2
Type B1 standards.
The multimode cables specified for the Gigabit-
SX mini-GBIC may also be used, but a mode-
conditioning patch cord may be needed — see
"Mode Conditioning Patch Cord for Gigabit-LX"
on page B-3
Gigabit-LH The same single-mode fiber-optic cables as for
(on Gigabit-LH-LC Gigabit-LX.
mini-GBIC)
Note:
Gigabit-LH - The transmission distances are dependent on the particular fiber loss and coupling loss involved, among
other factors, and can be estimated from the optical loss budget. For distances less than 20km, a 10dB attenuator must
be used. For distances between 20km and 40km, a 5dB attenuator must be used. Attenuators can be purchased from
most cable vendors.
100-FX Multimode fiber-optic cables fitted with LC
(on 100-FX SFP-LC connectors
transceiver)
■
2-6
Fiber Optic Cables
for more information.
Installation Location - Before installing the switch, plan its location and
orientation relative to other devices and equipment:
• In the front of the switch, leave at least 7.6 cm (3 inches) of space for
the twisted-pair and fiber-optic cabling.
• In the back of the switch, leave at least 3.8 cm (1 1/2 inches) of space
for the power cord.
• On the sides of the switch, leave at least 7.6 cm (3 inches) for cooling,
except if the switch is installed in an open EIA/TIA rack. See Figure
2-1 for the air flow direction.
Length Limits
• 62.5 μm cable:
– 160 MHz*km = 220 meters
– 200 MHz*km = 275 meters
• 50 μm cable:
– 400 MHz*km = 500 meters
– 500 MHz*km = 550 meters
• single-mode cable = 5 kilometers
• multimode cable = 550 meters
• 70 kilometers
412 m for half-duplex
2 Km for full-duplex.