GarrettCom Magnum 3000 RPM-FST Fiber ST, Twist-lock Connector, Magnum RPM-FST, Jumper Across

Magnum 3000 Stackable Hubs Installation and User Guide (07/06)

4.2.4RPM-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, FOIRL
	ST Connectors
10BASE-FL and FOIRL network
segments. When used for 10BASE-FL
segments, this module supports fiber	1
optic transmission distances up to	2
2000m. For FOIRL applications, it	3
supports fiber segments of up to 1000m
	1 LINK 2 Partition 3 Receive
in length. The RPM-FST includes full
transceiver	Magnum RPM-FST

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	0 - 2 km
3 - 4	0.5 - 3 km*
5 - 6	1.5 - 4 km*

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.

DEFAULT

1 2

3 4

5 6

J1

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