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Magnum 3000 Stackable Hubs
4.2.4
RPM-FST (Fiber ST, Twist-lock Connector)
The Magnum RPM-FST is a multi-mode fiber optic module equipped with a
dual ST-type connector. It functions as
an IEEE 802.3 full repeater to support
10BASE-FL and FOIRL network
segments. When used for 10BASE-FL
segments, this module supports fiber
optic transmission distances up to
2000m. For FOIRL applications, it
supports fiber segments of up to 1000m
in length. The RPM-FST includes full
transceiver
functionality and does not require an external transceiver device. In addition to Partition
(PART) and Receive (RX) LEDs, a LINK LED indicates proper connectivity with the
remote device.
NOTE: The RPM-FST/FSC circuit board contains a six pin jumper which controls the
intensity of the transmitted signal. By default, the jumper is placed across pins 1 and 2.
The jumper may be set as follows to accommodate distances of up to 4 km:
JUMPER ACROSS DISTANCES SUPPORTED
1 - 2
3 - 4
5 - 6
When distances of less than 2
km are needed, the jumper
should be placed across pins 1
and 2.
*When fiber cable distances
of more than 2 km are
selected, the minimum cable
length must also be increased,
as shown in the table above.
www GarrettCom com
.
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10BASE-FL, FOIRL
1
3
Magnum RPM-FST
0 - 2 km
0.5 - 3 km*
1.5 - 4 km*
26
Installation and User Guide (07/06)
ST Connectors
2
2
LINK
Partition
1
DEFAULT
3
Receive
1 2
3 4
5 6
J1
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