GarrettCom Magnum ST80 manual Increased port capacity via stacking

Stackable Personal Hubs

When stacking, switch the Stack Enable switch of the bottom ST80 to the “OFF” position (left). All other units should be switched to the “ON” position (right). Using the IRB ribbon cable, connect one end to

either Inter-Repeater-Bus connector (IRB1 or IRB2) of the bottom ST80. Connect the other end of the cable to the corresponding IRB connector of the top ST80 (i.e., the IRB cable is connected from IRB1 to IRB1, or from IRB2 to IRB2). If additional ST80

Personal Hubs are to be added, connect another IRB cable from the unused IRB connector of the existing stack’s top unit to the corresponding IRB connector of the ST80 Personal Hub to be added. Be sure that the Stack Enable Switch of the added unit is set to the “ON” position. Up to five

Stackable Personal Hubs may be connected in this fashion.

Each unit of the stack must be powered by its own external power supply unit. “Power on” is verified by observing that the PWR LED of each unit is illuminated. Should one unit of the stack be powered down, the remainder of the stack will still function

properly.

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Installation and User Guide (04/01)

R					PWR		AUI
I
B
1
I			Magnum ST80 Stackable Personal Hub
R
B
2
	OFStack							UP-LINK
	F	Enable
			Ports 1 2	3 4		5 6	7	8
		O
		N

Two stacked ST80s - 16 RJ-45 ports

R		PWR		AUI
I
B
1
I	Magnum ST80 Stackable Personal Hub
R
B
2
OFStack					UP-LINK
F E
nable	Ports 1 2	3 4	5 6	7	8
O
N

Three stacked ST80s - 24 RJ-45 ports

R		PWR		AUI
I
B
1
I	Magnum ST80 Stackable Personal Hub
R
B
2
Stack					UP-LINK
n
E	Ports 1 2	3 4	5 6	7	8
able

Four stacked ST80s - 32 RJ-45 ports

R		PWR		AUI
I
B
1
I	Magnum ST80 Stackable Personal Hub
S
R
B
2
Otack					UP-LINK
E
nable	Ports 1 2	3 4	5 6	7	8
N

Five stacked ST80s - 40 RJ-45 ports

Increased port capacity via stacking

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