Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network
Providing Power to the Cisco Unified IP Phone
Table | Powering | |
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Power Type |
| Guidelines |
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PoE | • The Cisco Unified IP Phone 7961G and 7941G support Cisco inline | |
a switch through the | PoE. | |
Ethernet cable attached | • The Cisco Unified IP Phone 7961G and 7941G support IEEE 802.3af | |
to the phone. |
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| power on signal pairs and spare pairs. | |
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| • To ensure uninterruptible operation of the phone, make sure that the |
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| switch has a backup power supply. |
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| • Make sure that the CatOS or IOS version running on your switch |
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| supports your intended phone deployment. Refer to the documentation |
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| for your switch for operating system version information. |
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External power— | The inline power patch panel | |
Provided through inline | Cisco Unified IP Phones 7961G and 7941G. | |
power patch panel |
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Table | Powering | |
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Power Type |
| Guidelines |
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External power— | • The Cisco Unified IP Phone | |
Provided through the | ||
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external power supply. |
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External power— | The Cisco Unified IP Phone Power Injector may be used with any Cisco | |
Provided through the | Unified IP Phone. Functioning as a midspan device, the injector delivers | |
Cisco Unified IP Phone | inline power to the attached phone. The Cisco Unified IP Phone Power | |
Power Injector. |
| Injector is connected between a switch port and the IP Phone, and supports |
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| a maximum cable length of 100m between the unpowered switch and the IP |
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| Phone. |
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| Cisco Unified IP Phone | |
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