Chapter 1 Introduction |
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| Site A |
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PBX |
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| Site B |
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Telephone | NxE1/T1 |
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Switch | Links |
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| PBX |
PBX |
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| NxE1/T1 |
Router |
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| Ethernet | Ethernet | Telephone | |
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Workstation |
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| PBX |
Workstation
100BaseT100BaseT
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Gigabit |
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| Gigabit | |
Ethernet |
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| Giga Ethernet | ||
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| Backbone | ||
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MAN | SwitchEthernet | |||
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| 100BaseT |
Site C
Ethernet Switch
Router
Workstation
E1/T1 |
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| E1/T1 | ||
| NxE1/T1 Links |
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PBXPBX