Gigabit Power Injector Block Diagram

Description of LED Functions for Gigabit Power Injector

Power-up Sequence:

Upon power-up, all 3 LEDs will light for 2 seconds, as part of the self-test for the internal

microprocessor software. After the end of the 2 seconds, the "ON" LED will illuminate

green, signifying that the DC output voltage is available for powering a compliant load

(to the 802.3at PoE standards).

Detection Sequence:

Once a compliant load is attached to the output RJ45 connector, the green "CONNECT"

LED will illuminate. Should the load is classified as Class 4 PD, the green “PoEPLUS”

LED will illuminate. Otherwise, “PoEPLUS” LED will stay off.

Should the load be non-compliant then the LEDs will blink a code signifying the cause

for non-detection.

Detection Failure Codes:

1. Incorrect resistive signature – The green “CONNECT” and green “PoEPLUS” LEDs

will blink 3 times.

2. Incorrect capacitive signature – The green “ON” LED will blink 3 times.

3. Incorrect Voffset – The green “CONNECT” and green “ON” LEDs will blink 3

times.

4. Unstable current measurement – The green “CONNECT” LED will blink 3 times

5. Low voltage sensed during detection (overload) – The green “PoE PLUS” LED will

blink 3 times