AP Power Consumption Investigation 21-Aug-2003

ALL TESTS USING 5V/2.8A WALL MODULE POWER SUPPLY

Digital multimeter inserted in-line with the power cord set for auto-ranging Ammeter mode w/ 10A max.

All tests performed in office/lab conditions at room temperature.

Test
Current(mA)
CPU/Clock
Connections
Conditions
1
450
IBM405EP/233MHz
none
idle w/ Linux running
2
560
Motorola MPC850/48MHz
Ethernet/Prism2.5 pcmcia
Running as AP, idle
3
735
Motorola MPC850/48MHz
Ethernet/Prism2.5 pcmcia
Max. transmit (ftp get)
4
700
Motorola MPC850/48MHz
Ethernet/Prism2.5 pcmcia
Active (ftp put)
5
866
Toshiba TX3927/133MHz
none
booting
6
455
Toshiba TX3927/133MHz
none
idle w/ Linux running
7
490
Toshiba TX3927/133MHz
WAN Eth
idle w/ Linux running
8
780
Toshiba TX3927/133MHz
WAN Eth
eth flood ping w/ 1400byte packets
9
830
Toshiba TX3927/133MHz
SW Eth + WAN Eth
flood ping on both Eth ports
10
720
Toshiba TX3927/133MHz
2 Eth + Prism2.5 miniPCI
idle running as AP (beaconing)
11
960
Toshiba TX3927/133MHz
2 Eth + Prism2.5 miniPCI
WLAN Sta pushing data at AP
12
1006
Toshiba TX3927/133MHz
2 Eth + Prism2.5 miniPCI
bi-dir data flow
13
840
Toshiba TX3927/133MHz
2 Eth + TI miniPCI
idle running as AP
14
800
Toshiba TX3927/133MHz
2 Eth + PrismGT miniPCI
idle running as AP
15
608
D-Link DWL-900AP+ revA
1 Eth + TI radio
idle AP operation
16
760
D-Link DWL-900AP+ revA
1 Eth + TI radio
lg file transfer, max transmit activity
17
685
D-Link DWL-900AP+ revA
1 Eth + TI radio
1400byte flood ping
18
950
D-Link DI-624 revA
PrismGT Radio
idle AP operation
19
1004
D-Link DI-624 revA
1 Eth on SW port
Eth flood ping