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Placing Units On Top of Each Other 23
Placing Units On | If the Switch units are |
Top of Each Other | 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 |
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| each Switch, sticking one in the marked area at each corner. Place the |
| Switch units on top of each other, ensuring that the pads of the upper |
| unit line up with the recesses of the lower unit. |
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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 |
| 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 |
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| 3C17302A Superstack 3 Switch 4200 |
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1 | 25 | 2 | 26 | 3 | 27 | 4 | 28 | 5 | 29 | 6 | 30 | 7 | 31 | 8 | 32 | 9 | 33 | 10 | 34 | 11 | 35 | 12 | 36 | 13 | 37 | 14 | 38 | 15 | 39 | 16 | 40 | 17 | 41 | 18 | 42 | 19 | 43 | 20 | 44 | 21 45 | 22 46 | 23 47 | 24 | 48 | Power/ |
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| Self Test |
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| 1 |
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| 2 |
| Up |
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| 3 | Alert | |
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| 4 | Unit |
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| 49 |
Down
50
1 | 13 | 2 | 14 | 3 15 | 4 16 | 5 17 | 6 18 | 7 19 | 8 20 | 9 | 21 | 10 22 | 11 23 | 12 24 |
3C17304A Superstack 3 Switch 4200
| Power/ |
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| 27 |
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| Self Test |
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1 |
| 25 / Up | 26 / Down | 27 | 28 |
2 |
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3 | Alert |
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4 | Unit |
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| 28 |
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1 | 13 | 2 | 14 | 3 15 | 4 16 | 5 17 | 6 18 | 7 19 | 8 20 | 9 | 21 | 10 22 | 11 23 | 12 24 |
3C17304A Superstack 3 Switch 4200
| Power/ | 27 |
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| Self Test | 27 | 28 |
| 25 / Up | ||
1 | 26 / Down |
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2 |
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3 | Alert | 28 |
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4 |
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Unit |
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1 | 13 | 2 | 14 | 3 15 | 4 16 | 5 17 | 6 18 | 7 19 | 8 20 | 9 | 21 | 10 22 | 11 23 | 12 24 |
3C17300A Superstack 3 Switch 4200
| Power/ |
| Self Test |
1 | 25 / Up 26 / Down |
2 |
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3 | Alert |
4 | Unit |
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