Installation guide

Installing the Switch
3-6
Connecting to the Stack’s Backplane
Plug one end of the stack cable (ordered separately) in the TX (right) port of the top
unit and the other end to the RX (left) port of the next unit. Repeat this step for each
unit in the stack. Form a simple chain starting at the TX port on the top unit and
ending at the RX port on the bottom unit (stacking up to 8 units). Finally, complete
the stack connections by plugging one end of a stack cable into the TX port on the
bottom unit and the other end into the RX port on the top unit.
Figure 3-6. Connecting to backplane
Select the Master unit in the stack by pressing the push button in on only one of the
stacking modules. Only one switch in the stack can operate as the Master, all other
units operate in slave mode. If more than one switch in the stack is selected as
Master, or if no switches are selected, the stack will not function.
Note: The stacking feature requires that all stacking module ports be connected and
the switches powered on. If one stack link is not connected, or if a switch is
powered off, the stack will not function.
Stacking Module
TX
RX
Stacking Module
TX
RX
Stacking Module
TX
RX
Module 2
Link
M
1
M
2
P
W
R
D
iag
S
ta
ck
R
P
U
D
up
lex
Module 1
Link
M
1
M
2
P
W
R
D
iag
S
ta
ck
R
P
U
D
up
lex
Module 2
Link
M
1
M
2
P
W
R
D
iag
S
ta
ck
R
P
U
D
up
lex
Module 2
L
ink
M
1
M
2
P
W
R
D
iag
S
tack
R
P
U
D
uple
x
Module 2
Link
M
1
M
2
P
W
R
D
iag
S
tack
R
P
U
D
uplex
Module 1
Module 1