Brand: Cisco
Category: Telephony
Document Type: Installation Guide
Language: EN
Installation Guide for IP Phone Power Injector
Uploaded: Sept. 12, 2025, 4:24 a.m.
This manual provides instructions for installing and connecting the Cisco Unified IP Phone Power Injector. It includes steps for connecting the power injector to the network and the IP phone, as well as indicator light descriptions.
Troubleshooting and error codes
| Problem | Possible Cause | Solution |
|---|---|---|
| Power injector does not power up | Power cord is not plugged in correctly. | Ensure the power cord is securely plugged into the power injector and the wall outlet. |
| IP phone does not power up | Incorrect cable connections. | Verify that the DATA and POWER - Phone cable is connected between the power injector and the IP phone, and the DATA - Network cable is connected between the power injector and the network. |
| Status LED is off | Power injector is not receiving power. | Check power cord connections and ensure the wall outlet is functional. |
| Status LED is blinking | Potential hardware issue or firmware problem. | Refer to Cisco documentation or contact Cisco support. |