
There are two (some would say 3) power supplies for DirecTV SWIM systems. The SWIM system built into the LNB assembly typically uses a 21 volt input. A SWIM module with multiple LNB inputs converting it into a single cable (square box with multiple inputs/outputs on the sides that could be SWiM8 or SWiM16) uses a stronger 28/29V input (den I use). peer review). The older versions were closer to 28 volts and the newer ones (this review) closer to 29 volts. BUT. Although I have a system with a SWIM module built into the LNB which normally requires a 21 volt input device, I bought this one (29 volts) due to the length of the cable from the LNB to the input device as well as the cable from the SWIM splitter (SWiM8 ) to the Genie box in the backyard kitchen (about 150 feet). I read about this long-term solution on the obscure 771/775 blog for intermittent errors, but can't find any confirmation from DirecTV or other DIY blogs (e.g. Satellite Guys). So far (3 months) everything is fine.

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