Lantronix SISTP10 0-3-LRT Series, Install Manual, Page: 15 / 31

Lantronix SISTP10x0-3xx-LRT Install Guide
33733 Rev. G https://www.lantronix.com/ Page
15
of
31
PoE / PoE+ Spec Comparison
PoE Plus (PoE+) provides extended support for new end devices with higher power requirements. The IEEE
802.3at standard provides up to 30W of power to include newer end devices such as IEEE 802.11n wireless access
points, security surveillance cameras, etc.
Property 802.3af PoE 802.3at PoE+
Power Available at PD 12.95 W 25.50 W
Max. Power from PSE 15.40 W 30.0 W
Voltage Range (at PSE) 44.0 – 57.0 V 50.0 – 57.0 V
Voltage Range (at PD) 37.0 – 57.0 V 42.5 – 57.0 V
Max. current 350 mA 600 mA per mode
Max. cable resistance 20 ohms (Cat 3) 12.5 ohms (Cat 5)
Power management
3 power class levels negotiated at
1
st connection
4 power class levels negotiated at 1
st
connection or 0.1 W steps negotiated
continuously
Supported cabling Cat 3 and Cat 5 Cat 5
Supported modes
Mode A (endspan) and Mode B
(midspan)
Mode A and Mode B
IEEE 802.3bt Power Input Ripple and Noise Specification
f < 500 Hz
V
Noise
V
pp
0.5
500 Hz to 150 kHz 0.2
150 kHz to 500 kHz 0.15
500 kHz to 1 MHz 0.1