Cisco Unified IP Phone Power Injector — 48V DC Power for Cisco IP Phones (110-220V AC Input, 15.5W)

The Cisco Unified IP Phone Power Injector is a compact, dependable solution designed to deliver stable, regulated 48V DC power to Cisco IP Phones while carrying data over the same Ethernet cable. Built for busy office environments and enterprise deployments, this injector eliminates the need for PoE on every switch port by providing a dedicated power path that ensures reliable voice service even in networks without PoE capability. Its global compatibility, with 110V and 220V input options, makes it an ideal component for multi-region sites, while the single-output design keeps installation simple, cable runs clean, and management straightforward. Designed in a dark gray enclosure, this injector fits seamlessly into desks, server rooms, or equipment racks, providing a robust power solution that IT teams can trust during deployments, migrations, or upgrades. Whether you are expanding Cisco IP Phone fleets, refreshing a conference room, or upgrading a campus-wide communications system, this power injector helps maintain uninterrupted voice communication with minimal complexity.

• Single-port power and data delivery: 1 x 10/100/1000Base-T Input Port connects to your network switch or data source, while 1 x 10/100/1000Base-T Output Port delivers both data and 48V DC power to the Cisco IP Phone over a single Ethernet cable.
• Global voltage compatibility: Accepts 110 V AC or 220 V AC input, enabling smooth worldwide deployment without a separate voltage converter. The unit is designed to adapt to regional power standards, ensuring reliable operation across offices, regional hubs, and remote sites.
• Regulated 48V DC power at 15.5 W: Provides a stable, dedicated power supply capable of reliably powering Cisco Unified IP Phones, helping prevent power-related issues that can affect call quality, boot-up, and device stability.
• Rugged, compact design: Dark gray enclosure with a compact footprint for desks, workstations, or near network closets. Built to withstand everyday office environments while blending with existing equipment aesthetics.
• Plug-and-play installation: Straightforward setup with a focus on minimal downtime—connect the input to the switch, connect the phone to the output, and plug the injector into a power outlet. No complex configurations required, making it ideal for IT teams prioritizing speed and reliability.

Technical Details of Cisco Unified IP Phone Power Injector

• Product: Cisco Unified IP Phone Power Injector
• Input Voltage: 110 V AC and 220 V AC
• Output Voltage: 48 V DC
• Output Power: 15.50 W
• Ports: 1 x 10/100/1000Base-T Input Port, 1 x 10/100/1000Base-T Output Port
• Color: Dark Gray

How to Install Cisco Unified IP Phone Power Injector

• 1. Position the injector: Place the injector near your network equipment and a convenient wall outlet. Ensure there is adequate ventilation and that the area is free from excessive heat, dust, or moisture.
• 2. Connect the network source: Use a standard Ethernet cable to connect your network switch or router to the injector’s Input Port. This establishes the data path necessary for phone operation.
• 3. Connect the IP phone: Run another Ethernet cable from the injector’s Output Port to the Cisco IP Phone’s Ethernet port. This single cable will carry both data and 48V DC power to the phone.
• 4. Power up: Plug the injector into a 110V or 220V AC outlet depending on your region. Ensure the power connection is secure and that the outlet is not controlled by a wall switch that could accidentally cut power.
• 5. Verify operation: Observe the phone’s status indicators. The device should boot normally and establish network connectivity. If the phone does not power on, double-check the cable connections and outlet receptacle, and confirm that the injector is receiving mains power.

Frequently Asked Questions

• Q: What devices is this power injector intended for? A: It is designed to power Cisco Unified IP Phones that require a dedicated 48V DC supply, using a single Ethernet cable for data and power.
• Q: Is this a PoE injector? A: No. This unit provides a separate 48V DC power path to the phone, not Power over Ethernet. It is a solution for environments where PoE is not available or not desired.
• Q: What input voltages are supported? A: The injector accepts 110 V AC and 220 V AC, making it suitable for use in North America, Europe, Asia, and other regions with standard mains voltage.
• Q: How many devices can I power with this injector? A: The unit has a single 48V DC output port, designed to power one Cisco IP Phone. It is not intended to power multiple devices from a single injector.
• Q: What are the network considerations when using this injector? A: Since the injector carries data as well as power on the output cable, ensure your Ethernet cable (Cat5e/Cat6 or higher) supports Gigabit speeds if required by your IP Phone. Keep cable runs within standard Ethernet distance limits (up to 100 meters per segment) and avoid excessive bending or interference near power sources.
• Q: Can I use this injector with non-Cisco devices? A: It is optimized for Cisco Unified IP Phones that require 48V DC power. Using it with non-Cisco devices may not work as intended and could void warranties. Refer to device power requirements before use.