View Full Version : IHub / Svlan power from the receiver?
Mistress
06-26-2014, 02:29 PM
Hello,
(A Brownie troop recently found me wandering, lost, in the desert. That's why I haven't posted for a long while. Honest.)
I recently picked up a second SV8000HD and an unprogrammed WIZ110SR dongle.
I'm wondering if anyone knows how the original iHub/Svlan dongle got its power from the SV8000 serial port with no need for an external supply.
Thanx.
PS - I did find this (http://www.epanorama.net/circuits/rspower.html)on epanorama but it has so many squiggly and arrowy things!
jvvh5897
06-26-2014, 06:06 PM
The nine pin connector on FTA boxes often only use 3 of the pins for serial comms--TX, RX and ground. So, some FTA box makers started using the unused 6 pins for other things--sometimes you find a second serial port supported on the connector for debug uses, and sometimes they put power on the pins. I suspect if you got a multimeter and put it on the port you would find something like the last.
airjam
06-26-2014, 06:15 PM
Hello,
(A Brownie troop recently found me wandering, lost, in the desert. That's why I haven't posted for a long while. Honest.)
I recently picked up a second SV8000HD and an unprogrammed WIZ110SR dongle.
I'm wondering if anyone knows how the original iHub/Svlan dongle got its power from the SV8000 serial port with no need for an external supply.
Thanx.
PS - I did find this (http://www.epanorama.net/circuits/rspower.html)on epanorama but it has so many squiggly and arrowy things!
To answer your question ... Original SVLAN gets power from pin # 4 on the RS232 connector of the sonicview receiver. If you are trying to power the Wiz110sr however things will be a little different as you will be passing through a null modem adapter or cable.
Here is a picture with jumper wire on the Wiz110SR used to supply power from the receiver to the dongle via Null Modem.
skywalker999
06-26-2014, 10:35 PM
i helped a friend with the same problem i did the mode shown on the above pic but it did not work with the db9 cable he was using for the ihub he had to by a Mini DB9 Female to Female Null Modem Adapter on ebay he connected that adapter to the cable he was using on the ihub and his wiz110sr powered right up :thumbsup:
22086
oddball
07-03-2014, 12:54 AM
Hmm. Don' t you just need the adapter and connect the wiz with the adapter to db9 of sv,,, you do not need the null cable right?
airjam
07-03-2014, 01:44 PM
Hmm. Don' t you just need the adapter and connect the wiz with the adapter to db9 of sv,,, you do not need the null cable right?
You can use a null modem adapter or a null modem cable. The reason the cable did not work for the above post is he used a straight through pin to pin DB9 cable therefore all the cable was doing was acting as an extension. Null modem cables crosses certain pins from one end to the other.
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