|
||||||||
Linksys SPA-1001 - ring capacitor needed???? |
![]() |
|
|
Thread Tools | Search this Thread |
|
|
#1 |
|
Forum Member
Join Date: Mar 2005
Posts: 3,644
|
Linksys SPA-1001 - ring capacitor needed????
Hi there,
After getting my Sipura SPA-1001 up and running for a couple of weeks I decided to buy and won a bid off EBay for a Linksys SPA-1001 (just looks like it's got a newer case than mine). I've got it all setup eventually (had some problems with the registered SIP port), but it dit not come with the RJ11 - telephone dongle. I'm off to Maplins later to get one, but I've heard on some other threads that certain ATA's need a ring capacitor as they have a diffrent impedence to the UK? I was wondering if a normal one without the ring capacitor would work on this box as you can get the impedence up in the setups? Thanks, Mark. |
|
|
|
|
Please sign in or register to remove this advertisement.
|
|
|
#2 |
|
Forum Member
Join Date: Oct 2004
Posts: 14,633
|
I've plugged phones of many types into my sipura spa-3000 and linksys pap2, with and without a capacitor without trouble.
I think ADSL microfilters have the capacitor built in, so if it doesn't ring try one of those. |
|
|
|
|
|
#3 |
|
Forum Member
Join Date: Mar 2005
Posts: 3,644
|
Ok.
Many thanks for the reply. Mark. |
|
|
|
|
|
#4 |
|
Banned User
Join Date: Nov 2004
Location: Middle Earth.
Posts: 1,121
|
Quote:
Originally Posted by Mark in Essex
Hi there,
After getting my Sipura SPA-1001 up and running for a couple of weeks I decided to buy and won a bid off EBay for a Linksys SPA-1001 (just looks like it's got a newer case than mine). I've got it all setup eventually (had some problems with the registered SIP port), but it dit not come with the RJ11 - telephone dongle. I'm off to Maplins later to get one, but I've heard on some other threads that certain ATA's need a ring capacitor as they have a diffrent impedence to the UK? I was wondering if a normal one without the ring capacitor would work on this box as you can get the impedence up in the setups? Thanks, Mark. As you have found the impedance is setup in the SPA's set-up, if the impedance is wrong, you get poor sound / echoing on the phone you use. Whether you need a ring capacitor is dependant on the phones you connect to the ATA, it is for your phones you need the ring capacitor. Many phones have a ring capacitor built in to them, but there are phones that were built for UK use only and don't have a ring capacitor, the ring capacitor is built in to the master socket on your usual phone lines, this is why you have a master socket, and the extensions use an extra wire to link up to the ring circuit. If your phone/s don't ring when called with the RJ11-BABT adapter then it likely that that phone requires a socket with a ring capacitor (such as in a master socket). So just to recap it's not the ATA that requires the ring capacitor it is the phones themselves. |
|
|
|
|
|
#5 |
|
Forum Member
Join Date: Mar 2005
Posts: 3,644
|
Quote:
Originally Posted by MadMulla
As you have found the impedance is setup in the SPA's set-up, if the impedance is wrong, you get poor sound / echoing on the phone you use.
Whether you need a ring capacitor is dependant on the phones you connect to the ATA, it is for your phones you need the ring capacitor. Many phones have a ring capacitor built in to them, but there are phones that were built for UK use only and don't have a ring capacitor, the ring capacitor is built in to the master socket on your usual phone lines, this is why you have a master socket, and the extensions use an extra wire to link up to the ring circuit. If your phone/s don't ring when called with the RJ11-BABT adapter then it likely that that phone requires a socket with a ring capacitor (such as in a master socket). So just to recap it's not the ATA that requires the ring capacitor it is the phones themselves. Cheers, Mark. |
|
|
|
![]() |
| Thread Tools | Search this Thread |
|
All times are GMT. The time now is 17:13.

