[Asterisk-Users] Re: Tormenta ISA E1 card

[info at itwav.com]

Hi,Steve,
  My ISA E1 card does not work yet. I would like to know if there are other 
difference bettween then two kind of ISA card? 


                  john 

Steve Underwood writes: 

> Hi John, 
> 
> That is correct. Note those are VCXO crystals, and not ordinary ones.
> They need to have the right pullable characteristics to get reliable
> results. If you downlod the info from Dallas for the framer chip they
> give some recommendations for off the shelf crystals which will work. 
> 
> Regards,
> Steve 
> 
> info at itwav.com wrote: 
> 
>> Hi!Steve,
>> Thank you for your reply. I think the change for Tor ISA card from T1
>> to E1 might be as following:
>> T1 E1
>> VCXO crystals 6.1756MHz 8.192MHz
>> framer chips DS2151 DS2153 
>>
>> and the jumper E1-1 and E1-2 should be closed.
>> I don't know if what my suspection is right. So,I need your confirm.
>> Think you. 
>>
>> john
>  
> 
> 
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users at lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users