GarrettCom P80C - Manual (Page 12)

Magnum P80F & P80C Personal Switches Installation and User Guide (07/03)
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When the up-link port is used to cascade two P80-series Personal Switches, the auto-sensing
feature will cause the connecting link to operate at 100Mbps speed and full-duplex mode.
2.4 Fiber port, ST or SC Connector for Model P80F
100Mbps Fiber port, ST-type mm
or SC type (single-mode or multi-mode)
The Fast Ethernet fiber switched port on the Magnum P80F is set to operate at fixed
100Mb speed for guaranteed high performance. The P80F’s fiber port is factory-built as either a
multi-mode ST, multi-mode SC, multi-mode MTRJ or single-mode or long-reach SC connector.
The 100Mb fiber port will run at 100Mbs speed at all times with manually selected full- and
half-duplex capability. The 100Mbps fiber port is a switched port and performs as a domain,
providing a high bandwidth backbone connection (no media converter is required!) and
supporting long (up to 40km) fiber cable distances for installation versatility.
Ports 2SW (the fiber port) has an “F - H” user-selectable manual switch. When set in
the “F” position, it forces full-duplex mode. When set in the “H” position, it forces half-duplex
mode, still at 100Mbps speed.
On Magnum P80F units, there are three LED’s for the switched ports. One (LK/ACT)
is steady ON to indicate LINK, blinking indicates the port is transmitting and receiving. The
SPEED LED is ON for 100Mbps and OFF for 10 Mbps (when LINK is made). The F/H
indicates full-duplex when ON, when it is OFF, operation is half-duplex.
A fiber cable must be connected to the 100Mb port and a proper link (LK lit) must be
made with the device at the other end of the cable in order for these LEDs to provide valid
indications of operating conditions.
Tx Rx
F H
= X
UPLINK F H
Tx Rx
F H
= X
UPLINK