Clarifying 1250 802.3af operation

When installing 1250 AP on standard 802.3af PoE, according to the following: http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps6973/ps8382/product_data_sheet0900aecd806b7c5c.html  :
operation will be limited to a single transmitter per radio with maximum PHY data rates of 150 Mbps instead of 300 Mbps per radio
Just verifying that this means a "single" spatial stream, per Radio. In other words, the radio requires less power due to lowering the amount of spatial streams on both 2.4 and 5GHz radios. This effectively changes the spec. from a "2x3" to a "1x3" on each radio. 1 transmitter and 3 recievers.
Reducing the number of spatial streams (or "transmitters" as described in that document) reduces both overall power draw as well as throughput capability.
Is that technically accurate?

That is correct. The work around was either the AP having to reduce the transmission like you mentioned or a radio had to be removed.
Sent from Cisco Technical Support iPhone App

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    S/W  Version .................................... 7.4.110.0
    Boot  Version ................................... 15.2.2.0
    Mini IOS Version ................................ 7.5.1.73
    Stats Reporting Period .......................... 180
    Stats Collection Mode ........................... normal
    LED State........................................ Enabled
    PoE Pre-Standard Switch.......................... Enabled
    PoE Power Injector MAC Addr...................... Disabled
    Power Type/Mode.................................. Power injector / Normal mode
    Number Of Slots.................................. 2
    AP Model......................................... AIR-CAP1602E-E-K9
    AP Image......................................... C1600-K9W8-M
    IOS Version...................................... 15.2(2)JB2$
    Reset Button..................................... Enabled
    AP Serial Number................................. FGL1735X02L
    AP Certificate Type.............................. Manufacture Installed
    AP User Mode..................................... AUTOMATIC
    AP User Name..................................... Not Configured
    AP Dot1x User Mode............................... Not Configured
    AP Dot1x User Name............................... Not Configured
    Cisco AP system logging host..................... 255.255.255.255
    For the 802.11a interface things are almost the same.
    Output for show sysinfo:
    Manufacturer's Name.............................. Cisco Systems Inc.
    Product Name..................................... Cisco Controller
    Product Version.................................. 7.4.110.0
    Bootloader Version............................... 1.0.16
    Field Recovery Image Version..................... 1.0.0
    Firmware Version................................. PIC 16.0
    Build Type....................................... DATA + WPS
    System Name...................................... WLC_Intranet
    System Location..................................
    System Contact...................................
    System ObjectID.................................. 1.3.6.1.4.1.9.1.1279
    IP Address....................................... 10.10.10.4
    Last Reset....................................... Software reset
    System Up Time................................... 3 days 5 hrs 33 mins 41 secs
    System Timezone Location.........................
    System Stats Realtime Interval................... 5
    System Stats Normal Interval..................... 180
    Output from "show time":
    Time............................................. Sun Sep 29 19:22:01 2013
    Timezone delta................................... 0:0
    Timezone location................................
    NTP Servers
        NTP Polling Interval.........................     3600
         Index     NTP Key Index     NTP Server      NTP Msg Auth Status
           1              0        x.x.x.x       AUTH DISABLED
    Output from "show verion" on one of the APs:
    Cisco IOS Software, C1600 Software (AP1G2-K9W8-M), Version 15.2(2)JB2, RELEASE SOFTWARE (fc1)
    Technical Support: http://www.cisco.com/techsupport
    Copyright (c) 1986-2013 by Cisco Systems, Inc.
    Compiled Mon 29-Jul-13 12:35 by prod_rel_team
    ROM: Bootstrap program is C1600 boot loader
    BOOTLDR: C1600 Boot Loader (AP1G2-BOOT-M) LoaderVersion 15.2(2)JAX, RELEASE SOFTWARE (fc1)
    APc08c.601f.260d uptime is 30 minutes
    System returned to ROM by power-on
    System image file is "flash:/ap1g2-k9w8-mx.152-2.JB2/ap1g2-k9w8-mx.152-2.JB2"
    Last reload reason:
    This product contains cryptographic features and is subject to United
    States and local country laws governing import, export, transfer and
    use. Delivery of Cisco cryptographic products does not imply
    third-party authority to import, export, distribute or use encryption.
    Importers, exporters, distributors and users are responsible for
    compliance with U.S. and local country laws. By using this product you
    agree to comply with applicable laws and regulations. If you are unable
    to comply with U.S. and local laws, return this product immediately.
    A summary of U.S. laws governing Cisco cryptographic products may be found at:
    http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
    If you require further assistance please contact us by sending email to
    [email protected].
    cisco AIR-CAP1602E-E-K9    (PowerPC) processor (revision B0) with 98294K/32768K bytes of memory.
    Processor board ID FGL1735X02L
    PowerPC CPU at 533Mhz, revision number 0x2151
    Last reset from power-on
    LWAPP image version 7.4.110.0
    1 Gigabit Ethernet interface
    2 802.11 Radios
    32K bytes of flash-simulated non-volatile configuration memory.
    Base ethernet MAC Address: C0:8C:60:1F:26:0D
    Part Number                          : 73-14508-04
    PCA Assembly Number                  : 000-00000-00
    PCA Revision Number                  :
    PCB Serial Number                    : FOC17292D61
    Top Assembly Part Number             : 800-38553-01
    Top Assembly Serial Number           : FGL1735X02L
    Top Revision Number                  : A0
    Product/Model Number                 : AIR-SAP1602E-E-K9
    Configuration register is 0xF
    Output from "show inventory " on one of the APs:
    NAME: "AP1600", DESCR: "Cisco Aironet 1600 Series (IEEE 802.11n) Access Point"
    PID: AIR-SAP1602E-E-K9 , VID: V01, SN: FGL1735X02L
    Output from "show inventory " on one of the APs:
    Interface                  IP-Address      OK?  Method  Status                Protocol
    BVI1                       10.10.10.7     YES  DHCP     up                    up
    Dot11Radio0                unassigned     NO  unset     administratively down    down
    Dot11Radio1                unassigned     NO  unset     administratively down    down
    GigabitEthernet0             unassigned     NO  unset     up                    up
    GigabitEthernet0.1           unassigned      YES  unset     up                    up

  • What are Operation Modes?

    I would just like to have deeper meaning with regards to Operation Modes. What are operation modes? Does this basically means that we can allocate additional resources (in terms of work process) to a specific operation? For instance, we need additional background work processes at night, we could simply switch the operation mode that is defined to add several background work processes for night? Is that it?
    Are there any subtraction or addition of work processes? For instance, from only existing 5 background processes, we can make it to 10 background processes by activating or switching the operation mode?
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    Hi,
    Operations modes just change the role (from DIA to BTC for exemple) of some work processes.
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    Regards,
    Olivier

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