Placing Units On Top of Each Other
23
Placing Units On
Top of Each Other
If the Switch units are free-standing, up to eight units can be placed one
on top of the other. If you are mixing a variety of SuperStack
®
3 Switch
and Hub units, the smaller units must be positioned at the top.
If you are placing Switch units one on top of the other, you must use the
self-adhesive rubber feet supplied. Apply the pads to the underside of
each Switch, sticking one in the marked area at each corner. Place the
Switch units on top of each other, ensuring that the feet of the upper unit
line up with the recesses of the lower unit.
Stacking Units
Up to four Switch 4200 Family units can be stacked together and then
treated as a single manageable unit with one IP address. Any
combination of Switch 4200 Family units is allowed in a single stack. The
units are connected together via the 10/100/1000BASE-T ports on the
front of the unit as shown in
Figure 6
. Starting from the base of the stack,
the port marked with ‘up’ is connected to the port marked with ‘down’
on the unit above. Cable lengths of between 14 cm (5.5 in) and
100 m (328 ft) can be used for stacking.
Figure 6
Stacking example
The unit LEDs will display the unit number in the stack, from 1 at the
bottom to 4 at the top.
3Com recommends that when you add a new unit to a stack, you should
first initialize it to factory default settings.
Any Switch 4200 unit can be added to the stack, including the Switch
4226T, the Switch 4250T and the Switch 4228G. You must install the
latest software version on all units in the stack.
Power/
Self Test
Alert
21
9
10 22
11 23
12 24
8 20
1
13
19
7
18
6
17
5
16
4
15
3
14
2
26 / Down
25 / Up
1
2
3
4
Unit
Power/
Self Test
Alert
21
9
10 22
11 23
12 24
8 20
1
13
19
7
18
6
17
5
16
4
15
3
14
2
26 / Down
25 / Up
1
2
3
4
Unit
3C17304A Superstack 3 Switch 4200 28-Port
Power/
Self Test
Alert
21
9
10 22
11 23
12 24
8 20
1
13
19
7
18
6
17
5
16
4
15
3
14
2
26 / Down
25 / Up
1
2
3
4
Unit
3C17302A Superstack 3 Switch 4200 50-Port
8
32
1
25
31
7
30
6
29
5
28
4
27
3
26
2
49
50
16 40
9
33
39
15
38
14
37
13
36
12
35
11
34
10
24 48
17
41
47
23
46
22
45
21
44
20
43
19
42
18
Up
Down
Alert
Power/
Self Test
Unit
1
2
3
4
27
28
27
28
27
28
27
28
3C17304A Superstack 3 Switch 4200 28-Port
3C17300A Superstack 3 Switch 4200 26-Port
DUA1730-0AAA03.book Page 23 Thursday, November 17, 2005 12:17 PM
Содержание SuperStack 3 NBX
Страница 6: ...DUA1730 0AAA03 book Page 6 Thursday November 17 2005 12 17 PM...
Страница 30: ...30 CHAPTER 2 INSTALLING THE SWITCH DUA1730 0AAA03 book Page 30 Thursday November 17 2005 12 17 PM...
Страница 52: ...52 CHAPTER 3 SETTING UP FOR MANAGEMENT DUA1730 0AAA03 book Page 52 Thursday November 17 2005 12 17 PM...
Страница 72: ...72 APPENDIX B PIN OUTS DUA1730 0AAA03 book Page 72 Thursday November 17 2005 12 17 PM...
Страница 76: ...76 APPENDIX C TECHNICAL SPECIFICATIONS DUA1730 0AAA03 book Page 76 Thursday November 17 2005 12 17 PM...
Страница 84: ...DUA1730 0AAA03 book Page 84 Thursday November 17 2005 12 17 PM...
