OBi 202 will only handle one phone at a time.
drgeoff:
Quote from: SteveInWA on November 18, 2014, 01:33:24 am
Phones have an internal impedance, that, when added together, collectively consume the power applied to the line by the phone company, or in this case, the OBi device. If that total impedance is too high, you'll overload the OBi and results will be unpredictable.
The phones are in parallel so the impedances do not add; will be halved for two identical phones. Too low can be a problem, not too high.
idahowayne:
Thanks for the help everyone. Turns out the problem was in one of my phones not the OBi. Everything is working fine now.
SteveInWA, At this point I am still using the power supply shipped with the OBi, but am about to order a DC to DC converter. The one I picked is 1 amp max, in your opinion is that adequate?
SteveInWA:
Quote from: drgeoff on November 18, 2014, 04:41:57 am
Quote from: SteveInWA on November 18, 2014, 01:33:24 am
Phones have an internal impedance, that, when added together, collectively consume the power applied to the line by the phone company, or in this case, the OBi device. If that total impedance is too high, you'll overload the OBi and results will be unpredictable.
The phones are in parallel so the impedances do not add; will be halved for two identical phones. Too low can be a problem, not too high.
Sorry, that's right. What I meant was, when both phones are off-hook and on the call, their total consumed power load on the line could have been too much for the OBi to handle, although any properly-operating phone made in the past 20 or so years should be able to work. The issue would be the power required, determined by the voltage supplied by the OBi times the resulting impedance of the two phones. It was a defective phone, as the OP pointed out.
SteveInWA:
Quote from: idahowayne on November 18, 2014, 12:12:34 pm
Thanks for the help everyone. Turns out the problem was in one of my phones not the OBi. Everything is working fine now.
SteveInWA, At this point I am still using the power supply shipped with the OBi, but am about to order a DC to DC converter. The one I picked is 1 amp max, in your opinion is that adequate?
That should be plenty, although all bets are off if you're still using one of those old phones.
idahowayne:
Steve, Just checked my phones current draw. 20.45 mA off hook and 20.47 mA in conversation on an incomming call.
Navigation
[0] Message Index
[#] Next page
[*] Previous page