Linear Technology now offers a family of Power over Ethernet interface controllers for emerging PoE+ applications, including higher performance wireless access points, PTZ security cameras and RFID readers. The LTC®4266 quad and LTC4274 single PSEs, and LTC4265, LTC4269, LTC4278 PDs are IEEE 802.3at compliant solutions that support the new PoE+ standard with 25.5W of PD power and 2-Event Classification signaling. This new family is fully backward compatible with IEEE 802.3af and unlocks the potential for high power PoE applications.
The document introduces the Linear Technology family of Power over Ethernet (PoE) interface controllers designed for high-performance applications such as wireless access points, PTZ security cameras, and RFID readers. It highlights compliance with IEEE 802.3at Type 1 and 2 standards, offering backward compatibility with 802.3af.
| Power Dissipation per Port | 130mW at 600mA |
|---|---|
| Compliance Standard | IEEE 802.3at Type 1 and 2 |
| PD Power Support | Up to 25.5W |
The family supports up to 25.5W of PD power compliant with IEEE 802.3at.
Yes, it is fully backward compatible with IEEE 802.3af.
It uses a Very High Reliability 4-Point PD Detection method.