GarrettCom 4K-Series - Manual (Page 13)

Magnum 4K8 Switches Installation and User Guide (10/04)
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The Magnum 4K8R is dual-speed 10/100Mbps switch and has a fiber
connector port options. The switching capability allow the Magnum 4K8R to support
multiple workgroup smoothly with its own switched 100Mbps or 10Mbps domain.
Normally the 4K8R is equipped with an optional internal 48VDC power
supply (See Appendix A). There is an additional option of a dual-source 48V input (See
Appendix B).
The DC power feed options and the high quality and versatility make the Magnum 4K8R
a good high-availability choice for Telcos, ISPs, broadcast equipment, medical,
brokerage firm, financial facilities and Industrial Environment.
2.2.3 Fiber-port modules, 100Mb fiber
Fig.2.2.3 Fiber-Port Modules, FPM-ST, FPM-SC, FPM-MTRJ
The fiber port module is optional for Magnum 4K8 Switch. In a fiber port
module, all of the fiber ports are of the fixed speed at 100Mbps or 10Mb, either multi-
or single-mode, and different connector type. Multi-mode 100Mbps models are available
with ST, SC, and MTRJ connections. Single-mode 100Mbps models are available with
SC connectors.
The 100Mb fiber port modules on the Magnum 4K8 normally are set (factory
default) to operate in full-duplex mode for best fiber distance and performance. On the
Magnum 4K8, the user may select full- or half-duplex mode per-port with an internal
jumper setting (See Section 3.4) for the flexibility to adapt to any type of Fast Ethernet
devices.
On Magnum FPMs, there are two LED’s per fiber port. The Link (LK) LED
indicates “ready for operation” when lit), and an LED indicates Receiving Activity
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