Cisco 4507 Switch (WS-C4507R+E) POE issue

[anil.gupta3]

Hi Friends,

I have cisco WS-C4507R+E with (WS-X4748-RJ45V+E)  for connecting IP Phone over the POE....

Whenever I connect IP Phone to this switch on the module, the IP Phones are not getting power on and nothing is working..I have configured the POE on the switch.

Please help to resolve this issue..

and also please let me know, what is meaning of POE (Data only) ?

http://www.cisco.com/en/US/products/hw/switches/ps4324/products_data_sheet09186a00801f3dd9.html

also i have 2* PWR-C45-1400AC on the switch for ower supply..

Regards,

Neal

[mvsheik123]

Do you have the enough power (1+1) ? I guess you need 2800 for POE. Can you post 'show power detail' output?

Thx

MS

[anil.gupta3]

Hi,

I have two 1400W power supply and both are working...below is output of same.

I need to know, what is the meaning of POE (Data only) ?

------------------ show power detail ------------------

Power                                             Fan      Inline

Supply  Model No          Type       Status       Sensor   Status

------  ----------------  ---------  -----------  -------  -------

PS1     PWR-C45-1400AC    AC 1400W   good         good     n.a.  

PS2     PWR-C45-1400AC    AC 1400W   good         good     n.a.  

Power supplies needed by system    : 1

Power supplies currently available : 2

Power Summary                      Maximum

(in Watts)              Used     Available

----------------------   ----     ---------

System Power (12V)        800        1360

Inline Power (-50V)         0           0

Backplane Power (3.3V)     40          40

----------------------   ----     ---------

Total                     840        1400

                             Watts Used of System Power(12V)

Mod   Model                 budgeted instantaneous  peak   out of reset  in reset

----  -------------------   -------- ------------- ------  ------------  --------

1    WS-X4748-RJ45V+E          75          42        42        75          35

2    WS-X4748-RJ45V+E          75          40        40        75          35

3    WS-X45-SUP7-E            260         189       189       260         100

4    WS-X45-SUP7-E            225         182       184       225         225

5    WS-X4506-GB-T             30         --        --         30          20

--   Fan Tray                 135         --        --        --          --

-------------------------   -------- ------------- ------  ------------  --------

       Total                   800         453       455       665         415

                        Watts used of Chassis Inline Power (-50V)

                        Inline Power Admin  Inline Power Oper

Mod   Model                PS     Device       PS     Device     Efficiency

----  -------------------  ----------------    ----------------    ----------

1    WS-X4748-RJ45V+E         -        -          -        -           -

2    WS-X4748-RJ45V+E         -        -          -        -           -

3    WS-X45-SUP7-E            -        -          -        -           -

4    WS-X45-SUP7-E            -        -          -        -           -

5    WS-X4506-GB-T            0        0          0        0          89

-------------------------  ----------------    ----------------    ----------

       Total                   0        0          0        0

[mvsheik123]

Switch left with 560w power and the 48 ports on the module requires 740w (@15.4w). This may be the issue.Try by changing the power mode to combined (I never tried this way but just a thought- as we have 2800W PS). In case if this switch is already in prod, make sure to wait till you get maintenance window.

hth

MS

[Leo Laohoo]

Try running a TDR on the interface. 

1.  Command:  test cable tdr interface ;

2.  Wait for about 60 seconds for the test to run;

3.  Command:  show cable tdr interface ; and

4.  Post the outputs please.