Side-by-Side Comparison
Power over Ethernet
PoE+ (802.3at) vs. PoE++ Type 3
Comparing 2 standards across 10 specifications. 6 key differences identified.
Comparing:
PoE+ (802.3at)
PoE++ Type 3
Power over Ethernet Plus (PoE+, IEEE 802.3at Type 2) is a 2009 standard delivering up to 30.0 W of DC power per PSE port and guaranteeing 25.50 W of continuous power at the connected Powered Device (PD) across two twisted pairs of Category 5e or better cable.
Power over Ethernet Plus Plus Type 3 (PoE++ / 4PPoE, IEEE 802.3bt Type 3) is a 2018 standard that supplies up to 60.0 W of DC power per PSE port and guarantees 51.0 W of usable power at the PD by transmitting current across all four twisted pairs simultaneously.
Specification Comparison Table
10 Parameters| Parameter / Spec | ||
|---|---|---|
|
IEEE Standard
|
IEEE 802.3at-2009 | IEEE 802.3bt-2018 |
|
PoE Type
|
Type 2 (PoE+) | Type 3 (4PPoE / PoE++) |
|
PSE Output Power (Max)
|
30.0 W | 60.0 W |
|
PD Input Power (Guaranteed)
|
25.50 W | 51.0 W |
|
PSE Output Voltage Range
|
50.0–57.0 V DC | 50.0–57.0 V DC |
|
PD Input Voltage Range
|
42.5–57.0 V DC | 42.5–57.0 V DC |
|
Max Current
|
600 mA | 600 mA per pair set |
|
Twisted Pairs Energized
|
2 pairs (Alternative A or B) | 4 pairs (4PPoE) |
|
Minimum Cable Category
|
Category 5e | Category 5e |
|
PoE Power Classes
|
— | Class 5 (45W PSE) and Class 6 (60W PSE) |