Procurve 2910Al-48G-Poe+ Configuration - HP ProCurve 2520 Planning And Implementation Manual

Planning and Implementation for the 2910al PoE+ Switches
Planning Your PoE Configuration

ProCurve 2910al-48G-PoE+ Configuration

PoE+ power requirements are figured differently for the 2910al-48G-PoE+
switch, see PoE+ Power on
contains entries that show the PoE+ power available for the 2910al-48G-PoE+
switch.
In the default configuration PoE+ power priority is determined by port
number, with the lowest numbered port (port 1) having the highest priority,
and the highest numbered port (port 48) having the lowest priority.
N o t e
It is the ports configured with the highest priority of either bank (1-24 or
25-48) that will receive PoE+ power first. For example, if the highest priority
ports have been re-configured to be 23, 24 and 47, 48, then they will receive
PoE+ power before the lower priority ports.
*
Status of the Back Spd mode: off=10 Mbps,
Mdl EPS RPS
ProCurve Switch
3 5 7
2910bl-48G-PoE Link 1 Mode
J9148A
PoE+
Power
Fault Act
Status
Locator
PoE FDx
LED
Mode
Tmp Spd *
Fan PoE
Test Usr
Console
Link 2 4 6 8
Mode
Reset Clear
12 ports can receive up to 30
watts of PoE+ power
Figure 7-3. Example of a 2910al-48G-PoE+ Switch
Internal PoE+
Power
Supply
For example, the switch starts with 382 watts. It takes 360.0 watts to fully
provision 12 ports at 30 watts per port (plus 6 watts to account for load
fluctuations), leaving 22 watts to be returned to the pool of available watts.
Since a port requires 33 watts to power up a PoE+ device, there is not enough
available power to power another device.
7-4
2 flash=100 Mbps, on=1 Gbps, 3 flash=10 Gbps PoE+ Integrated 10/100/1000Base-T Ports (1 - 48T) — Ports are Auto-MDIX
9 11 Link 13 Mode 15 17 19 21 23
10 12 Link 14 16 18 20 22 24
Mode
or All 24 ports can receive up to 15.4
watts of PoE power
Source of Watts
Power Available
382
page 2-15. The table in this example configuration
Link 25 Mode 27 29 31 33 35 Link
Link 26 28 30 32 34 36
Mode Link
or
48 ports can receive up to 7.0
# of Ports Powered and
Average watts/Port
12 @ average 30 W each
24 @ average 15.4 W each
48 @ average 7.5 W each
48 @ average 4.0 W each
Dual-Personality Ports: 10/100/1000-T (T) or SFP (S)
37 Mode 39 41 43 45 47 Link 45 Mode 47
T T S
38 40 42 44 46 48 46 48
Mode T T Link S Mode
watts of PoE power
Redundant # of Ports
Powered and Average watts/
Port
None
S
S