gl Modules Installation Guide 2003-11

Specifications
Fiber-Optic
Port Type Cable Specifications Connector Type Maximum Length
100Base-FX 62.5/125 µm or 50/125 µm (core/cladding)
MT-RJ - 100-FX gl
• full-duplex connections:
diameter, graded-index, low metal content,
Module
2 kilometers
multimode fiber-optic cables, complying with the
SC - 100-FX
• half-duplex connections:
ITU-T G.651 and ISO/IEC 793-2 Type A1b or A1a
Transceiver
412 meters
respectively.
Gigabit-SX 62.5/125 µm or 50/125 µm (core/cladding) LC - Gigabit-SX
• 62.5 µm cable:
diameter, graded-index, low metal content, mini-GBIC
– 160 MHz*km = 220 meters
multimode fiber-optic cables, complying with the
ITU-T G.651 and ISO/IEC 793-2 Type A1b or A1a
respectively.
SC - Gigabit-SX
transceiver
•
– 200 MHz*km = 275 meters
50 µm cable:
– 400 MHz*km = 500 meters
– 500 MHz*km = 550 meters
Gigabit-LX 9/125 µm (core/cladding) diameter, 1310 nm, low
metal content, single mode fiber-optic cables,
complying with the ITU-T G.652 and ISO/IEC
793-2 Type B1 standards.
OR
the multimode fiber-optic cables listed for
Gigabit-SX.
LC - Gigabit-LX
mini-GBIC
SC - Gigabit-LX
transceiver
• single-mode cable:
10 kilometers
• multimode cable:
550 meters
Note: To use multimode cables for Gigabit-LX, a mode conditioning patch cord may be needed — see
“Mode Conditioning Patch Cord for Gigabit-LX” on page 25 for more information.
Gigabit-LH 9/125 µm (core/cladding) diameter, 1310 nm, low
metal content, single mode fiber-optic cables,
complying with the ITU-T G.652 and ISO/IEC
793-2 Type B1 standards.
LC - Gigabit-LH
mini-GBIC
70 kilometers
Note: Between the transmit and receive ends of the cable, at least 5dB of attenuation is required for a
reliable connection. This is equivalent to 20Km of the fiber-optic cable. For distances less than 20Km,
you must add attenuators to bring the total attenuation to at least 5dB. Most cable vendors carry
attenuators.
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