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Magnum 3000 Stackable Hubs Installation and User Guide (07/06)
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2.3 Magnum 3024 Hub - 24 RJ-45 Ports, One PM bonus port slot
The Magnum 3024 Hub provides 24 RJ-45 ports on the front of the unit plus a
Bonus Port slot on the rear which may be configured with any Magnum Port Module
(PM). User-segment wiring connections are made on the front of the unit, and status-
indicator LEDs are located immediately above each of the 24 ports.
Figure 2.3a, Magnum 3024 Hub, Front View
The shielded RJ-45 port connectors on the front are electrically connected to
the metal case of the unit, and are helpful in reducing electromagnetic noise radiation
from the unit. (Note that the 10BASE-T wiring cable to the user may be unshielded or
shielded, Category 3 or 4 or 5. The choice of wiring type is left to the installer based on
preferences, standard practices and local or national wiring codes.)
Figure 2.3b, Magnum 3024 (and 3012), Rear View
2.3.1 Stacking Magnum 3000s
The rear of the Magnum 3000 Stackable Hubs have an Inter-Repeater Bus
(IRB) connector on the right side. The IRB interconnects stacked units with a shielded
ribbon cable, enabling all stacked Magnum 3000 units to operate as a single repeater.
There are two 34-pin IRB connectors on each unit: the bottom IRB connector
which is used to daisy chain the IRB to the stacked Magnum 3000 unit below (unused on
bottom unit in a Magnum 3000 stack); and the top IRB connector which is used to daisy
chain the IRB to the stacked Magnum 3000 unit above (unused on top unit in a Magnum
3000 stack). The IRB connectors for an non-stacked unit are unused.
Magnum 3000
Stackable Hub
GARRETT
Two LEDs (RX & LINK)
for each RJ-45 10BASE-T port.
Twenty-four RJ-45 10BASE-T Ports
Flashing LINK LED = Port is Partitioned
Flashing RX LED = Port Activity
Steady On LINK LED = Port is Operational
P1: Remote Terminal
RS-232 Port
(Embedded Agent Only)
AC Power
Connector
. . . . .
. . . .
Bonus Port Slot- Configurable via
Port Module (PM)
1 8
Inter-Repeater Bus (IRB)
P3 - Interface to unit above.
P4 - Interface to unit below.
P3
P
4
NOTE: P1 also used to setup IP address
and configuration files.
Eight (8) position dip switch.
1 - 6 = Address of Repeater Unit (1-20)
7 = Not Used - Previously used to allow PC based SNMP Agent
8 = Not Used