B-3
Switch Ports and Network Cables
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Fiber-Optic Cables
Port Type
Cable Specifications
Connector Type
Maximum Length
Gigabit-SX
62.5/125 mm or 50/125
μ
m (core/cladding)
diameter, graded-index, low metal content,
multimode fiber-optic cables, complying
with the ITU-T G.651 and ISO/IEC 793-2 Type
A1b or A1a respectively.
LC
•
62.5
μ
m cable:
– 160 MHz*km=220 meters
– 200 MHz*km=275 meters
•
50
μ
m cable:
– 400 MHz*km=500 meters
– 500 MHz*km=550 meters
Gigabit-LX
9/125
μ
m (core/cladding) diameter, graded-
index, 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
•
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 the
Installation Guide
that came with your module for more information.
Gigabit-LH
9/125 mm (core/cladding) diameter, graded-
index, low metal content, single mode fiber-
optic cables, complying with the ITU-T G.652
and ISO/IEC 793-2 Type B1 standards.
LC
70 kilometers
Note:
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.
100Base-
FX
62.5/125
μ
m or 50/125
μ
m (core/cladding)
diameter, graded-index, low metal content,
multimode
fiber-optic cables, complying
with the ITU-T G.651 and ISO/IEC 793-2 Type
A1b or A1a respectively.
MT-RJ or LC
•
full-duplex connections:
2 kilometers
•
half-duplex connections:
412 meters
Note:
MT-RJ connector is on the module or an LC connector on the SFP transceiver.
10-GbE SR
Multimode fiber-optic cable designed for
Gigabit Ethernet: 62.5/125
μ
m (core/
cladding) diameter or 50/125
μ
m, low metal
content,
complying with the ITU-T G.652 and ISO/IEC
793-2 Type B1 standards.
SC
■
62.5
μ
m cable:
•
160 Mhz*km = 2-26 meters
•
200 Mhz*km = 2-33 meters
■
50
μ
m cable:
•
400 Mhz*km = 2-66 meters
•
500 Mhz*km = 2-82 meters
•
2000 Mhz*km = 2-300
meters
