GarrettCom Magnum ST80 manual Switchable Up-Link Feature, Stacking the ST80 Personal Hubs

Stackable Personal Hubs Installation and User Guide (04/01)

3.8Switchable Up-Link Feature

Each Stackable Personal Hub is equipped with an up-link switch, connected to port 8 (right-most RJ-45 port). This switch is used to select either a normal 10BASE-T connection to a user device (switch in the “==” position) or a 10BASE-T network up-link connection to another hub or concentrator (switch in the “X” position). A special crossover cable for up-link is not needed with the Stackable Personal Hub because of this built-in up-link switch feature.

When port 8 is wired for up-link but

the switch is set to the “==” position, the up-

link connection is inoperative and full bandwidth is available locally.

	OFF
ON	En	Stack
able

2BRI1BRI

			PWR			AUI
Magnum ST80 Stackable Personal Hub
Ports 1 2	3 4	5 6		7	8 UP-LINK

	(==)
r
se
U

		)
	-Link	(X
p
U

3.9Stacking the ST80 Personal Hubs

When increased network capacity is needed, up to five ST80 Personal Hubs may be easily stacked to form a single logical repeater of up to 40 RJ-45 ports.

Stack Enable Switches

in “ON” position

(right)

Stack Enable Switch in “OFF” position (left)

I B 1 I B 2 Stack E nable

PWRAUI

Magnum ST80 Stackable Personal Hub

UP-LINK

Ports 1 2 3 4 5 6 7 8

NOTE: Be sure to secure the units with the stacking/mounting brackets before making the following electrical connections. The brackets cannot be installed while the connector cables are in place. Refer to Section 3.3 for stacking bracket installation instructions.

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