6
Maximum Distances for Power Sources
Multiple PoE Extenders can be connected every 100 meters to obtain greater distances.
The actual figures depend on operating conditions. The range is over 24AWG or heavier
Cat-5s or Cat-6 cable except where specified.
Examples for medium power PoE devices (that are PoE Class 2 or require less than 6W).
PoE Source
Maximum Distances
PoE switch
(802.3af, output voltage 50V)
300 meters
15W mid-span
(802.3af, output voltage 50V)
300 meters
PoE+ switch
(802.3at, output voltage 50V)
400 meters
30W mid-span
(802.3at, output voltage 50V)
400 meters
Examples for full power PoE devices (that are PoE Class 0 or 3, or require less than 12W).
PoE Source
Maximum Distances
PoE switch
(802.3af, output voltage 50V)
200 meters
15W mid-span
(802.3af, output voltage 50V)
200 meters
PoE+ switch
(802.3at, output voltage 50V)
300 meters
30W mid-span
(802.3at, output voltage 50V)
300 meters
Examples for PoE+ devices (that are PoE Class 4 that require less than 22W or are
802.3at-compliant).
PoE Source
Maximum Distances
PoE switch
(802.3af, output voltage 50V)
Not applicable
15W mid-span
(802.3af, output voltage 50V)
Not applicable
PoE+ switch
(802.3at, output voltage 50V)
200 meters
30W mid-span
(802.3at, output voltage 50V)
200 meters