Cisco Systems OL-8131-01 manual Providing Power to the Cisco Unified IP Phone

Chapter 2 Preparing to Install the Cisco Unified IP Phone on Your Network

Providing Power to the Cisco Unified IP Phone

Providing Power to the Cisco Unified IP Phone

You can power a Cisco Unified IP Phone by the following sources:

•External power—optional Cisco AC adapter and power cord for connecting to a standard wall receptacle.

•Inline power—inline power provider to the Cisco Unified IP Phone when connected to a Cisco Catalyst switch capable of providing inline power.

Note Only the network port supports inline power from the Cisco Catalyst switches.

•WS-X6348-RJ45V 10/100 switching module—Inline power provider to the Cisco Unified IP Phone when connected to a Catalyst 6000 family 10/100BaseTX switching module.

This module sends power on pins 1 & 2 and 3 & 6, which are also used to transmit Ethernet signals. Before the switch sends power, it tests for the presence of a Cisco Unified IP Phone, avoiding damage to other Ethernet devices.

Note Only the network port supports inline power from the Cisco Catalyst switches.

•WS-PWR-PANEL—power patch panel that allows the Cisco Unified IP Phone to be connected to existing Catalyst 4000, 5000, and 6000 family 10/100BaseTX switching modules.

This module sends power on pins 4, 5, 7, & 8, which are not used for Ethernet signaling. The power patch panel also attempts to verify that the attached device is a Cisco Unified IP Phone before providing power.

Related Topics

•Understanding Interactions with Other Cisco Unified Communications Products, page 2-2

•Power Outage, page 2-10

Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.0 (SIP), Cisco Unified IP Phones

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