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Magnum 8000X Mixed-Media Fiber Hubs Installation and User Guide (05/ 02)
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the AC power system into which it is being installed. An ON/OFF power switch is used
for powering the hub on and off when it is placed in or taken out of service, or when it
needs to be reset. AC Power input is auto-ranging, from 100 to 240vac with a frequency
of 47
to 63 Hz. When shipped for use in U.S. and Canada, a 115vac power cord is included.
Figure 2.3.c: Magnum 8000X Rear Panel View
Cooling Fan: The Magnum 8000X is equipped with a low noise 9 cfm
fan. The fan will maintain low temperature operation inside the unit to
maximize reliability, even in wiring closets with ambient temperatures up to 50°C.
Bonus Port: The Magnum 8000X features a bonus port slot that is rear-
mounted and is optionally configured with any one of the Switch Port Module (SPM)
types. An SPM will segment the 8000X from the other parts of the network connected
to it, providing flexibility in the network topology. This flexibility is especially
desirable for 100Mb traffic domains which are Path Delay Value (PDV) limited.
PMs for the front slots may not be used in the rear Bonus Port slot.
Inter-Repeater Bus (IRB): The IRB allows a Magnum 8000X unit to be
stacked with up to two Magnum 8000X-A and/or Magnum DS8016-A units to form
one logical dual-speed repeater. Instructions for the using the IRB connectors on the
Magnum 8000X are discussed in detail in Section 2.6, "Stacking Magnum 8000Xs".
2.4 Port Modules (PMs)
To provide maximum application flexibility, individual Port Modules
(PMs) are used with the Magnum 8000X. The Magnum 8000X features 16 PM slots on
the front of the unit and a bonus port slot on the rear of the unit, some (minimum of 2)
or all of which may be configured at a given time. The bonus slot allows for an optional
rear-mounted switched Ethernet segment connection, typically to a backbone.With the
bonus slot, the 8000X becomes a 16-port dual-speed hub with one switched up-link.
There are a total of six standard PM cards, each for a specific media cable
connector. A seventh module type is used as a face plate when any front slot is not
AC Power
Co nn e c t o r
Bonus Port Slot, configurable via
Port Module (PM)
(SPM - FST shown)
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Inter-Repeater Bus (IRB)
P3 - Interface to unit above.
P4 - Interface to unit below.
R L
OUT
IN
ON
OFF