Transition Networks
M-GE-xSW-SFP-01-xx-UxX Series User Guide
33781 Rev. B
Page 16 of 22
the round-trip delay in bit-times (BT) of a particular collision domain. If the result is less than or equal to 512 BT,
the path is good.
Rate Conversion
The M/GE-xSW-SFP-01-xx-UxX Series media converters allow connection of 10Mb/s terminal devices on a 10Base-
T legacy Ethernet copper network to 100Mb/s terminal devices on a 100Base-TX Fast Ethernet copper network
and/or to 100Mb/s terminal devices on a 100Base-FX or -LX10 Fast Ethernet fiber network.
Distance Extension
The M/GE-xSW-SFP-01-xx-UxX Series media converters can segment one (1) 10Base-T copper Ethernet and/or
100Base-TX copper Fast Ethernet, and one (1)100Base-FX or
–
LX10 fiber Fast Ethernet collision domain:
•
In a half-duplex Ethernet or Fast Ethernet environment, the M/GE-xSW-SFP-01-xx-UxX Series media
converters extend network distances by segmenting collision domains so that the 512-Bit Rule applies
separately to each collision domain.
•
In a full-duplex Ethernet or Fast Ethernet environment, the M/GE-xSW-SFP-01-xx-UxX Series media
converters extend network distances to the physical cable limitations imposed by the selected twisted-
pair copper fiber cables.
Fiber Cable and Optic Specifications
The fiber optic cable physical characteristics must meet or exceed IEEE 802.3ae specification.
Fiber cable
Bit Error Rate:
<10-9
Single mode fiber (
recommended
):
9 μm
Multimode fiber (
recommended
):
62.5/125 μm
Multimode fiber (
optional
):
100/140, 85/140, 50/125 μm
Optics
Fiber Optic Transmitter Power:
depends on the SFP module used.
Fiber Optic Receiver Sensitivity:
depends on the SFP module used.
Link Budget:
depends on the SFP module used.
The fiber optic transmitters on this device meet Class I Laser safety requirements per IEC-825/CDRH standards and
comply with 21 CFR1040.10 and 21CFR1040.11.
