DSP resources? - How to for dummies please.

[Rolando Valenzuela]

Can you help me undestanting how to uses the calculator?
The first issue I found is how to make it work with PVDM3 or VWIC3, then what do I need to write in each part.
Finally how to interpret the output.

I want to know if whit the below information I can support two E1 (32 channels each)

R1#show inventory
NAME: "CISCO2921/K9", DESCR: "CISCO2921/K9 chassis, Hw Serial#: XXXXXXXXXXX, Hw Revision: 1.0"
PID: CISCO2921/K9      , VID: V08 , SN: XXXXXXXXXXX

NAME: "VWIC3-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1 on Slot 0 SubSlot 0", DESCR: "VWIC3-2MFT-T1/E1 - 2-Port RJ-48 Multiflex Trunk - T1/E1"
PID: VWIC3-2MFT-T1/E1  , VID: V01 , SN: FOC17045FDX

NAME: "PVDM3 DSP DIMM with 32 Channels on Slot 0 SubSlot 4", DESCR: "PVDM3 DSP DIMM with 32 Channels"
PID: PVDM3-32          , VID: V01 , SN: FOC165248EF

NAME: "PVDM3 DSP DIMM with 32 Channels on Slot 0 SubSlot 5", DESCR: "PVDM3 DSP DIMM with 32 Channels"
PID: PVDM3-32          , VID: V01 , SN: FOC17080NSH

NAME: "C2921/C2951 AC Power Supply", DESCR: "C2921/C2951 AC Power Supply"
PID: PWR-2921-51-AC    , VID: V03 , SN: QCS1650H162

I read the help guide, but I dont quite understand this. 

[Chris Deren · Accepted solution]

VWIC3-2MFT-T1/E1 is the card that will allow you to connect 2 seperate E1 circuits to it.

PVDM3-32 will allow conversion from TDM (E1) to voip, depending on which codec you are going to use each call will either use 1 PVDM channel (low/medium complexity i.e. G711), or 2 channels (high complexity, i.e. G729R8).

HTH,

Chris

[Rolando Valenzuela]

@Aman Thanks for the link!!! very useful!!

@Chis, just to be sure, becuase I have two PVDM3 I can have a total of 32 calls using g729 and 64 calls using g711? (If I connect both E1)

Thanks

Rolando Valenzuela
 

[Emmanuel Valdez]

Hi Rolando, Your PVDM cards can support 2 E1's with 32 channels each one, you have to consider the codec that you will use, this is a gateway only (connecting the PSTN) or will use it for a CUCME or with a Distributed Telephony Design, because you have to consider transcoding and conference resources. Regards.

[Aman Soi · Accepted solution]

Hi Rolando, you can refer the link by AOK which gives detailed explaination https://supportforums.cisco.com/document/123126/cisco-pvdm2-and-pvdm3-dsp-creditmips-allocation regds, aman