Can I damage my box using a Dishpro plus 500?

[Brava27]

I have 1 Dish Pro 500 and one extra DP connected.
Basically like this:
21276

Can the T5 power this simple setup? I have been using this so far so good, just dont want to damage anything.

Thanks

[Berenjeno]

its ok to use it.

Sat 119
LNB Power on
LNB Type OCS-DP
LNB Frequenct 11.250
LNB 22Khz Off
Diseqc Sw 1.0...1
Diseqc Sw 1.1 Off
Legacy Sw Off

Sat 110
LNB Power on
LNB Type OCS-DP
LNB Frequenct 11.250
LNB 22Khz Off
Diseqc Sw 1.0...2
Diseqc Sw 1.1 Off
Legacy Sw Off

Sat 1xx ? the other
LNB Power on
LNB Type OCS-DP
LNB Frequenct 11.250
LNB 22Khz Off
Diseqc Sw 1.0...3
Diseqc Sw 1.1 Off
Legacy Sw Off

[Terryl]

No....Sorry guys but that setup will over time may do some damage to the receivers LNB power circuit.

It will power the DP twin LNB just fine, but when you add the second LNB to the setup the combined DC current draw will put it over the design limits of most FTA receivers.

Most FTA receivers can only supply 500 mA of DC current, it may run it for some time but over time there will be some type of dammage to the power circuit that runs the LNB's.

[erratic81]

Quick question... What if it were two dreamlinks connected to this setup or a dreamlink and a Vip211... Would that help take the load off?

[Terryl]

Nope, only the FTA receiver with the higher DC voltage will supply the current, this due to blocking diodes and voltage regulation IC's inside the LNB, the VIP211 will run this setup just fine if hooked to the #1 port on the LNB, but not two FTA receivers.

And only the #1 port on that LNB was designed to take the DC voltage and current to run the LNB's, the other ports may work but they were not designed to run the LNB for a long period of time.

You can run the DP twin LNB all day long, 24-7 365 with an FTA receiver but when you hook in a second DP LNB it will put you over the designed DC current rating on the receiver, (500 mA) this may be what others are having switching problems with, too big a DC load on the receiver.

[erratic81]

Thanks for replying... Sorry, I don't mean to be a prick and hijack but just a follow up question, if I did use a power inserter, along with an ecoda switch to pick up on another DP Twin 82&91, would the power inserter go after the switch, before the LNB? So Receiver -> ecoda -> power inserter -> DPP 500 110,119,129. On the other leg it would be ecoda -> DPP 82&91.

Thanks again.

[cmangle]

So if I understand correctly, the Dreamlink hd/hd t5 boxes only have a 500ma pwr supply and will NOT power 3 lnb's especially the dish 500 with a 3rd lnb. They will work for a short period of time but eventually either the power supply will fail or the regulator circuitry in the DLHD T5 fails (does anyone know which occurs first?). The suggested fix is a DN ird on port 1 or a power inserter.

I'm wondering though if a higher value (750ma~1000ma) power supply used instead of the OEM (500ma)solve the problem? or if that internal circuitry in the DLHD T5 STILL restricts/prohibits/falters on anything over a 500 ma load?

[Terryl]

Thanks for replying... Sorry, I don't mean to be a prick and hijack but just a follow up question, if I did use a power inserter, along with an ecoda switch to pick up on another DP Twin 82&91, would the power inserter go after the switch, before the LNB? So Receiver -> ecoda -> power inserter -> DPP 500 110,119,129. On the other leg it would be ecoda -> DPP 82&91.

Thanks again.


So if I understand correctly, the Dreamlink hd/hd t5 boxes only have a 500ma pwr supply and will NOT power 3 lnb's especially the dish 500 with a 3rd lnb. They will work for a short period of time but eventually either the power supply will fail or the regulator circuitry in the DLHD T5 fails (does anyone know which occurs first?). The suggested fix is a DN ird on port 1 or a power inserter.

I'm wondering though if a higher value (750ma~1000ma) power supply used instead of the OEM (500ma)solve the problem? or if that internal circuitry in the DLHD T5 STILL restricts/prohibits/falters on anything over a 500 ma load?
*************************************
OK for Erratic81's question,

You can't combine two DPP twin LNB's (one with a second DP single LNB attached in your setup) as you desctibe, as both setups have the same Diseqc switching command string, they would interact with each other and your receiver would get horribly lost, you would have to isolate the two systems with the use of a 22 KHz switch, 22 KHz off equals the Dish setup 110/119/129, 22 on equals the BEV setup 82/19, this only works for one receiver setups.

******************************
Now for Cmangle's question,

It's not the main power supply input current that determans the regulated DC voltage and DC current limitations at the LNB input on the reciver, but a secondary circuit inside the receiver that sends the DC polarity switching voltage (+13 volts and +18 volts) and DC current up the coax to power the LNB(s). (and any attached switch)

95% of the FTA receivers out there were only designed to power at most 2 single satellite LNB's and a single receiver Diseqc switch, the LNB input "F" connector on the back of the receiver has a DC current spec label, it on most it is 500 mA DC, some receivers may supply more then that, but most receivers if the DC current draw is too high will sustain internal power supply damage over time, how long till the box goes FUBAR? No idea.

If your receiver has an external DC supply that is only rated to 500 mA then you may only run 1 LNB, 2 at max, as the receiver also needs DC power to run, check that power supply if it's truly rated at 500 mA then your going to be short in the DC power area.

Dish does not care that you are trying to run one of their DC power hog LNB's, their receivers can run 4 DP LNB's all year long without problems, or one of the D1000 + LNB's without even heating up.

On most of these FTA receiver's you have 500 mA DC at the LNB input to work with, the D1000 triple head LNB takes 600 to 700 mA to run right, (650 mA is the published spec on the DC current draw for that LNB) more when you add the external DP single LNB to it, now 100 mA may not sound like much of an overload, but over time things will go South for the winter, and your internal power circuits may sustain some damage.

The more DC current you draw the hotter things get, and adding a fan to keep things cool may work for a bit, but over time things will go FUBAR.

[erratic81]

Thanks Terryl, learning so much from your explanations.. I wonder if it would be easier for me to just get a DPP44 Switch. Can I connect both Dish and Bev dishes to it? So Dish Pro Plus 500 110,119 + 129 and then a second Dish Pro Plus 500 91,82 four cables into the DPP44 switch.. Would this work? In my googles, it says I may need to put a 22khz switch on the bev port (91 on, 82 off) so the direcq switching works..

Thanks again for helping figure this out

[cmangle]

terryl so an external power inserter is the best/better way to go?

chris

[Terryl]

Thanks Terryl, learning so much from your explanations.. I wonder if it would be easier for me to just get a DPP44 Switch. Can I connect both Dish and Bev dishes to it? So Dish Pro Plus 500 110,119 + 129 and then a second Dish Pro Plus 500 91,82 four cables into the DPP44 switch.. Would this work? In my googles, it says I may need to put a 22khz switch on the bev port (91 on, 82 off) so the direcq switching works..

Thanks again for helping figure this out


terryl so an external power inserter is the best/better way to go?

chris


erratic81, you can only connect 4 LNB's or switch 4 Diseqc ports with a DPP44 switch, and the DP plus LNB has it's own internal switch so you will run into switch problems trying to use both at once.

You would have to go with what I posted above in post #8, and the 22 KHz switch will go AFTER any type of Diseqc switch.


Cmangle, yes a DPP 44 power inserter will run that LNB setup all year long, but it has to be on it's own coax and run directly to LNB port #1.

This is because some FTA receivers with the add on HD module do not like the DC power inserter in-line with them.

[cmangle]

Question, let's say there is already an DN system installed, with the DN ird powering the Dush 500 or 1000.2. Is there a loop out from that DN ird that can feed a Dreamlink HD/HD T5? and if there is will the HD pass through ok?

[Terryl]

Question, let's say there is already an DN system installed, with the DN ird powering the Dush 500 or 1000.2. Is there a loop out from that DN ird that can feed a Dreamlink HD/HD T5? and if there is will the HD pass through ok?


Quick answer.......No.


But you can use the IRD to power the LNB and use one of the second or third ports (depending on the LNB) for the FTA receiver.

[erratic81]

So I finally got my setup and and running, unfortunately with problems. I installed my DPP44 switch, into this I have the output of a Dish Pro 500+ LNB, 119 into port 1, 110 into port 2. Into port #3, I have 129 from a seperate Dish, Dish Pro LNB.

I have the power inserter going into receiver port #1, dreamlink going into port 2. This was working correctly when I had my Vip211 there, but now that my dreamlink is there, it is having issues switching between the dishes, particularly 110 & 129.

Problem number two is, on a completely separate dish 500 pro plus, I have 82 & 91. I thought I'd be able to connect the two outputs of this lnb to an ecoda 22khz switch, and then that output into the DPP44, port 4. Unfortunately, this does not work at all and it picks up no signal from port 4, I'm assuming maybe the diseqs are getting confused.

Please help! This is why I've always stuck with original receivers lol!

[Terryl]

The DPP44 switch is incompatible with the Encoda switch out in front of it, does the 82/91 dish also have a Dish Pro LNB on it? it so then that is your problem.

Your receiver is trying to look at Diseqc switch port #4, the LNB on the 82/91 dish is sending command info for Diseqc #1 and #2, they are getting mixed up.

The #4 port on the DPP44 switch will only work for 1 single LNB, not two combined with a second switch.

You could use two DP single LNB's on the 82/91 dish, then run one LNB to the #4 port on the DPP44 switch, then run one output of the DPP44 switch to one input of the Encoda (22 KHz off side) switch, then the second LNB can go to the other side of the Encoda.(22 KHz on side)