Controller Based WLANs

Why does IAP-205/AP-205 not identify the POE standard ?
Q:

Why does IAP-205/AP-205 not identify the POE standard ?



A:

AP-205 model does not identify the standard of POE power received from external switch (either 802.3af or 802.3at).
Other model APs such as AP225 and AP135 can identify POE standard.

 

IAP205 boot:
===========

APBoot 1.5.3.11 (build 44846)
Built: 2014-07-16 at 04:03:52

Model: AP-20x
CPU:   BCM53011/15, revision A0
I2C:   ready
SKU:   2
OTP:   0xeca01028
Clock:
       CPU:  800 MHz
       DDR:  533 MHz
       AXI:  400 MHz
       APB:  200 MHz
       PER:  400 MHz
DRAM:  128 MB
POST1: memory passed
SF:    Detected MX25L25635E with page size  4 kB, total 32 MB
Flash: 32 MB
PCIe0: RC, link up
       dev fn venID devID class  rev    MBAR0    MBAR1    MBAR2    MBAR3
       00  00  14e4  4360 00002   03 08000004 00000000 00000000 00000000
PCIe1: RC, link up
       dev fn venID devID class  rev    MBAR0    MBAR1    MBAR2    MBAR3
       00  00  14e4  4360 00002   03 40000004 00000000 00000000 00000000
Power: POE                    >>>>>>>>>  Here it should identify the POE standard(802.3af or 802.3at)                              
Net:   eth0
Radio: bcm43460#0, bcm43460#1    

 

IAP225 boot:
============

APBoot 1.4.0.6 (build 38177)
Built: 2013-04-25 at 22:52:20

Model: AP-22x
CPU0:  P1020E, Version: 1.1, (0x80ec0011)
Core:  E500, Version: 5.1, (0x80212051)
Clock:
       CPU0: 800 MHz
       CPU1: 800 MHz
       CCB:  400 MHz
       DDR:  333.333 MHz (666.667 MT/s data rate) (Asynchronous) 
       LBC:   25 MHz
L1:    D-cache 32KB enabled
       I-cache 32KB enabled
I2C:   ready
DRAM:  Configuring DDR for 666.667 MT/s data rate
DDR:   512 MB (DDR3, 32-bit, CL=5, ECC off)
POST1: memory passed
Flash: 32 MB
L2:    256 KB enabled
Power: 802.3at POE           >>>>>>>>>  It identifies the POE standard(802.3at)

 

Explanation:
============

This is by design. Springbank APs (boardname=Springbank) can not differentiate between AF and AT power and hence it only shows POE for all.  It is a hardware limitation.   For DC power, it shows as DC. 

Please look at below output. All features are enabled for POE(AF).

For AF:
PCIe1: RC, link up
       dev fn venID devID class  rev    MBAR0    MBAR1    MBAR2    MBAR3
       00  00  14e4  4360 00002   03 40000004 00000000 00000000 00000000
Power: POE

For DC:
PCIe1: RC, link up
       dev fn venID devID class  rev    MBAR0    MBAR1    MBAR2    MBAR3
       00  00  14e4  4360 00002   03 40000004 00000000 00000000 00000000
Power: DC
Net:   eth0
Radio: bcm43460#0, bcm43460#1

Version history
Revision #:
2 of 2
Last update:
‎10-17-2016 03:30 PM
Updated by:
 
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