Reliable Power and Data Delivery Through a Single Ethernet Cable
Deploying network devices where electrical outlets are unavailable can be challenging. The Cisco SB-PWR-INJ2 Gigabit PoE+ Injector simplifies installation by transmitting both power and Gigabit Ethernet data over a single network cable, reducing cabling complexity and improving deployment flexibility.
Supporting IEEE 802.3at (PoE+) and backward compatibility with IEEE 802.3af powered devices, this injector provides dependable power for compatible networking equipment while maintaining Gigabit network performance.
Product Introduction
The Cisco SB-PWR-INJ2 is a Gigabit Power over Ethernet (PoE+) injector designed to supply up to 30W of PoE power at 55V DC while simultaneously transmitting data over standard Ethernet cabling. It is ideal for expanding PoE capability without replacing an existing non-PoE network switch.
Application Scenarios
The SB-PWR-INJ2 is suitable for professional networking environments including:
- Wireless access point installations
- IP surveillance camera deployments
- VoIP phone systems
- Small business network expansion
- PoE-enabled network infrastructure
Technical Specifications
| Brand | Cisco |
| Model | SB-PWR-INJ2 |
| Product Type | Gigabit PoE+ Injector |
| Input Voltage | 90–264V AC, 50–60Hz |
| PoE Output Voltage | 55V DC |
| Maximum PoE Output | 30W |
| PoE Standards | IEEE 802.3at (PoE+), IEEE 802.3af |
| Ethernet Speed | 10/100/1000 Mbps |
| LAN Port | 1 × RJ45 Data In |
| PoE Port | 1 × RJ45 Data + Power Out |
| Operating Mode | Single-Port PoE Injector |
OEM Replacement Compatibility
This PoE injector can replace the following model:
- Cisco SB-PWR-INJ2
Compatible Device Categories
- IEEE 802.3at Powered Devices
- IEEE 802.3af Powered Devices
- Wireless Access Points
- IP Cameras
- VoIP Phones
- PoE Network Devices
FAQ
Q1: Does this injector support Gigabit Ethernet?
Yes. The SB-PWR-INJ2 supports 10/100/1000 Mbps Ethernet while simultaneously delivering PoE power.
Q2: What PoE standards are supported?
It supports IEEE 802.3at (PoE+) and is backward compatible with IEEE 802.3af powered devices.
Q3: Can this injector power non-PoE devices?
No. It is intended only for equipment designed to receive power through IEEE 802.3af or IEEE 802.3at PoE standards.
Q4: When should I use a PoE injector instead of a PoE switch?
A PoE injector is ideal when adding PoE capability to an existing non-PoE switch without replacing the network infrastructure.
The Cisco SB-PWR-INJ2 is a Gigabit Power over Ethernet injector that delivers up to 30W of 55V DC power while transmitting Gigabit Ethernet data over a single network cable. Supporting IEEE 802.3at and IEEE 802.3af standards, it is designed for compatible wireless access points, IP cameras, VoIP phones, and other PoE-powered network devices, serving as a replacement for the Cisco SB-PWR-INJ2 injector.
