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View Full Version : What is the danger in hooking up power inserter in port 2?



Harry Baules
01-22-2014, 08:31 PM
I have a Pinwheel HD Mini and Dish 1000.2 package so of course i need a power inserter. My tv room's cable line is currently hooked up to Port 1 of the LNB. Line 2 is another room no where near my tv. It's freezing outside so it will be a few days before I can get to LNB and switch the connections between port 1 and port 2. In the mean time is there any danger in connecting the power inserter OR spare FTA box to port 2 and keep the pinwheel in port 1? I've watched it like that with other receivers in the past, but only temporarily (ppv events only for a few hours).

Is there a difference between using a power inserter or spare FTA box in my particular case?

Has anyone experimented with using the power inserter inline with the pinwheel HD mini? I know it's not recommended but some receivers do ok with this.

Harry Baules
01-26-2014, 05:47 AM
I'm asking because everywhere I read about power inserters everyone said that we MUST hook it up to port 1 and the receiver on port 2. I've had mine hooked up as I described above (receiver in port 1, power inserter in port 2) for 4 days already and it's working fine.

pugsycan
01-26-2014, 03:42 PM
I dont think it will power the switch on port 2
I'm asking because everywhere I read about power inserters everyone said that we MUST hook it up to port 1 and the receiver on port 2. I've had mine hooked up as I described above (receiver in port 1, power inserter in port 2) for 4 days already and it's working fine.

Terryl
01-26-2014, 05:31 PM
It may work as far as powering the switch, but the #1 port on the switch has all the noise filtering and buffering for the DC power to it.

You would not be-leave all the noise and other junk RF that is picked up along the way, the other receiver ports are setup to run the switch if something happens to the #1 port, but don't run it that way all the time, it may cause problems later down the road.

It's all economics, if you build all the ports the same, the cost will quadruple on the receiver port design, so you designate the #1 port as the main power input, you put all the DC filters and distribution buffers on that port, with the other 3 just using blocking diodes to keep the DC power from backing down the line, and burning out a receivers input, the DC power supply to the switch runs at 22 volts DC, most receivers wont like that for too long as far as an input back to them.

Harry Baules
01-28-2014, 09:50 AM
Good to know. I'm gonna change it as soon as I can.

So tell me. What if I had two pinwheels or any two FTA boxes for that matter. Are they safe to just use two boxes on port 1 and port 2 and not use the power inserter?

RVD420
01-28-2014, 12:52 PM
You need about 1 amp of current coming from a port. Two Pinwheels will not cut it.
Good to know. I'm gonna change it as soon as I can.

So tell me. What if I had two pinwheels or any two FTA boxes for that matter. Are they safe to just use two boxes on port 1 and port 2 and not use the power inserter?

Terryl
01-28-2014, 04:51 PM
Good to know. I'm gonna change it as soon as I can.

So tell me. What if I had two pinwheels or any two FTA boxes for that matter. Are they safe to just use two boxes on port 1 and port 2 and not use the power inserter?

The power supply's in these receiver can not act like a battery, they can not add current to a system by adding more and more receivers, you need a very special power supply to do that, those cost big time, so adding a second FTA receiver will not add the needed DC current or DC voltage needed for the switch.

The only receivers that can directly power a DP or DPP switch is the ones from Dish or BEV, an in-active OEM reciver can power the system, but it's much better to use the correct DC power injector for this.

The DC power injector for a DP or DPP switch supply's about 20 to 22 volts DC at @ 1 amp, the newer Dish and BEV receivers can detect the switch and it's power supply and do what is necessary to run the system at what ever needed DC voltage and current to run the switch and all attached LNB's at the same time.

When using a 4x4 switch all attached LNB's are powered up at the same time, unlike some 4x1 Diseqc switches that may run only the LNB that is addressed at the time, the need for all attached LNB's to be on is due to the second, third or fourth receiver needing to use the other LNB's for a signal source for what ever channels are selected on them.