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Pansat 2500A purchase

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  • MPEG DVB
Last response: in Home Theatre Legacy
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Anonymous
October 12, 2004 8:55:00 PM

Archived from groups: alt.video.satellite.mpeg-dvb (More info?)

I have a 922 4dtv receiver and a 7.5ft dish. I would like to add a
Pansat 2500A receiver with the 4-input DiSEqC switch. I've seen them
on ebay but was wondering if there is a more reputable dealer with a
good price I could purchase from?

Also, since this unit has polarity controls ( I think), how do I hook
this up with my current receiver at the same time without causing any
problems? Or should I?

Thanks,

Matt

More about : pansat 2500a purchase

Anonymous
October 13, 2004 8:41:43 PM

Archived from groups: alt.video.satellite.mpeg-dvb (More info?)

slave it to your 922 with a d.c. blocking splitter on your lnb coax (or
coaxes ). let the 922 move the dish and control polarity.


"Matt Scoff" <xxscoffxx@aol.com> wrote in message
news:69kom0pkf5kho9d6oqahbqda7e3t31rvco@4ax.com...
> I have a 922 4dtv receiver and a 7.5ft dish. I would like to add a
> Pansat 2500A receiver with the 4-input DiSEqC switch. I've seen them
> on ebay but was wondering if there is a more reputable dealer with a
> good price I could purchase from?
>
> Also, since this unit has polarity controls ( I think), how do I hook
> this up with my current receiver at the same time without causing any
> problems? Or should I?
>
> Thanks,
>
> Matt
>
Anonymous
October 14, 2004 9:56:46 AM

Archived from groups: alt.video.satellite.mpeg-dvb (More info?)

Matt Scoff wrote:

> I have a 922 4dtv receiver and a 7.5ft dish. I would like to add a
> Pansat 2500A receiver with the 4-input DiSEqC switch. I've seen them
> on ebay but was wondering if there is a more reputable dealer with a
> good price I could purchase from?
>
> Also, since this unit has polarity controls ( I think), how do I hook
> this up with my current receiver at the same time without causing any
> problems? Or should I?
>
> Thanks,
>
> Matt
>

You could use a DPDT switch or relay arrangement to swap the polarity
control from one receiver to another. You need to switch the +5V
and skew lines, while the ground line can be in common. The relay
can be powered by the Pansat's 12V output, which you can program
to turn on when the receiver is on. This makes polarity control
automatic (just turn off the Pansat to switch over to the 922).
Related resources
Anonymous
October 14, 2004 12:51:39 PM

Archived from groups: alt.video.satellite.mpeg-dvb (More info?)

Is the DPDT automatic/self switching when the power on the Pansat is
turned on or is this a manual switch?


>You could use a DPDT switch or relay arrangement to swap the polarity
>control from one receiver to another. You need to switch the +5V
>and skew lines, while the ground line can be in common. The relay
>can be powered by the Pansat's 12V output, which you can program
>to turn on when the receiver is on. This makes polarity control
>automatic (just turn off the Pansat to switch over to the 922).
Anonymous
October 14, 2004 6:45:25 PM

Archived from groups: alt.video.satellite.mpeg-dvb (More info?)

On Thu, 14 Oct 2004 08:51:39 -0500, Matt Scoff <xxscoffxx@aol.com>
wrote:

>Is the DPDT automatic/self switching when the power on the Pansat is
>turned on or is this a manual switch?
>
>

You can di it either. Don't know what it would take exatly to make it
automatic.

>>You could use a DPDT switch or relay arrangement to swap the polarity
>>control from one receiver to another. You need to switch the +5V
>>and skew lines, while the ground line can be in common. The relay
>>can be powered by the Pansat's 12V output, which you can program
>>to turn on when the receiver is on. This makes polarity control
>>automatic (just turn off the Pansat to switch over to the 922).
Anonymous
October 15, 2004 6:48:40 AM

Archived from groups: alt.video.satellite.mpeg-dvb (More info?)

Matt Scoff wrote:
> Is the DPDT automatic/self switching when the power on the Pansat is
> turned on or is this a manual switch?
>
>
>
>>You could use a DPDT switch or relay arrangement to swap the polarity
>>control from one receiver to another. You need to switch the +5V
>>and skew lines, while the ground line can be in common. The relay
>>can be powered by the Pansat's 12V output, which you can program
>>to turn on when the receiver is on. This makes polarity control
>>automatic (just turn off the Pansat to switch over to the 922).

If you use a DPDT relay, it will be automatic.

If you use a DPDT switch, you'll have to switch it.

If you go to radioshack.com and type DPDT into the search box,
you can see what these things look like.
Anonymous
October 20, 2004 11:27:54 AM

Archived from groups: alt.video.satellite.mpeg-dvb (More info?)

Gary J. Tait wrote:
> On Thu, 14 Oct 2004 08:51:39 -0500, Matt Scoff <xxscoffxx@aol.com>
> wrote:
>
>> Is the DPDT automatic/self switching when the power on the Pansat is
>> turned on or is this a manual switch?
>>
>>
>
> You can di it either. Don't know what it would take exatly to make it
> automatic.
>
>>> You could use a DPDT switch or relay arrangement to swap the
>>> polarity control from one receiver to another. You need to switch
>>> the +5V and skew lines, while the ground line can be in common.
>>> The relay can be powered by the Pansat's 12V output, which you can
>>> program
>>> to turn on when the receiver is on. This makes polarity control
>>> automatic (just turn off the Pansat to switch over to the 922).

Sears Canada has a switching gizmo that might be just what you are looking
for. It has two receptacles set up so that when the device plugged into the
primary receptacle is turned on, the secondary also turns on. I 'doctored'
it for a guy by taking the relay inside apart and switched it from 'NO' to
'NC' (or the other way around. I can't remember.), so now the secondary is
normally on, but if the primary is turned on, the secondary turns /off/.

Sorry, but I can't remember the make or model of it - I altered it for him
more than 3 years ago, but they /should/ still make them.

Thnik about it!
Dead_Dad
Anonymous
October 21, 2004 9:32:27 AM

Archived from groups: alt.video.satellite.mpeg-dvb (More info?)

Dead_Dad wrote:
> Gary J. Tait wrote:
>>On Thu, 14 Oct 2004 08:51:39 -0500, Matt Scoff <xxscoffxx@aol.com> wrote:
>>
>>>Is the DPDT automatic/self switching when the power on the Pansat is
>>>turned on or is this a manual switch?
>>
>>You can di it either. Don't know what it would take exatly to make it
>>automatic.
>>
>>>>You could use a DPDT switch or relay arrangement to swap the
>>>>polarity control from one receiver to another. You need to switch
>>>>the +5V and skew lines, while the ground line can be in common.
>>>>The relay can be powered by the Pansat's 12V output, which you can program
>>>>to turn on when the receiver is on. This makes polarity control
>>>>automatic (just turn off the Pansat to switch over to the 922).
>
> Sears Canada has a switching gizmo that might be just what you are looking
> for. It has two receptacles set up so that when the device plugged into the
> primary receptacle is turned on, the secondary also turns on. I 'doctored'
> it for a guy by taking the relay inside apart and switched it from 'NO' to
> 'NC' (or the other way around. I can't remember.), so now the secondary is
> normally on, but if the primary is turned on, the secondary turns /off/.
>
> Sorry, but I can't remember the make or model of it - I altered it for him
> more than 3 years ago, but they /should/ still make them.
>
> Thnik about it!
> Dead_Dad

That really is more complicated than you need.

A single DPDT relay and some wire will do the trick.

The relay needs to have a 12V coil. This one will do the job:

http://www.radioshack.com/product.asp?catalog%5Fname=CT...

Here's how to wire it up:

A. Connect the following together:
- 1. one side of the relay coil (terminal 7 in the wiring diagram).
- 2. the ground of the Pansat.
- 3. the ground of the C-band receiver.
- 4. the ground of the servo.

B. Connect:
- 1. the other side of the relay coil (terminal 8).
- 2. the +12V output of the Pansat.

C. Connect:
- 1. one relay middle contact (terminal 5).
- 2. the +5V wire to the servo.

D. Connect:
- 1. the normally-closed contact for the same side (terminal 1, I think).
- 2. the +5V output of the C-band receiver.

E. Connect:
- 1. the normally-open contact for the same side (terminal 3, I think).
- 2. the +5V output of the Pansat.

F. Connect:
- 1. the other relay middle contact (terminal 6).
- 2. the pulse wire to the servo.

G. Connect:
- 1. the normally-closed contact for the same side (terminal 2, I think).
- 2. the pulse output of the C-band receiver.

H. Connect:
- 1. the normally-open contact for the same side (terminal 4, I think).
- 2. the pulse output of the Pansat.

If you get some crimp-on quick-disconnect connectors of the appropriate size,
this will make the wiring quite easy.

I had some trouble reading the wiring diagram for the relay, since the scan
was pretty bad, so if I got the normally-open and normally-closed contacts
reversed, you may need to swap them.

In any case, you also need to go into the Pansat's LNB setup menu and
enable the +12V switch option for your LNB. This is not the same thing
as the LNB power option. Normally, the +12V option is used to turn on
a A/B switch for when you've got more than 1 LNB going into the receiver.
In fact, you can buy a +12V LNB switch and use it for this purpose as
well. The Dish Network SW-AJ works fine for this purpose, assuming you
can fine one anymore.

The net result of all that wiring is that the servo is normally connected
to the C-band receiver, until you turn on the Pansat. Then the servo is
connected to the Pansat receiver (until you turn it off).
Anonymous
October 21, 2004 3:59:56 PM

Archived from groups: alt.video.satellite.mpeg-dvb (More info?)

>
> In any case, you also need to go into the Pansat's LNB setup menu and
> enable the +12V switch option for your LNB. This is not the same thing
> as the LNB power option. Normally, the +12V option is used to turn on
> a A/B switch for when you've got more than 1 LNB going into the receiver.
> In fact, you can buy a +12V LNB switch and use it for this purpose as
> well. The Dish Network SW-AJ works fine for this purpose, assuming you
> can fine one anymore.
>
> The net result of all that wiring is that the servo is normally connected
> to the C-band receiver, until you turn on the Pansat. Then the servo is
> connected to the Pansat receiver (until you turn it off).


NO active switched 12 volt terminal available on the 2500 as far as I know.
It would be nice.

-Dan
Anonymous
October 21, 2004 10:10:26 PM

Archived from groups: alt.video.satellite.mpeg-dvb (More info?)

Zoyburg wrote:
> Dead_Dad wrote:
>> Gary J. Tait wrote:
>>> On Thu, 14 Oct 2004 08:51:39 -0500, Matt Scoff <xxscoffxx@aol.com>
>>> wrote:
-----8<-----
>>
>> Sears Canada has a switching gizmo that might be just what you are
>> looking for. It has two receptacles set up so that when the device
-----8<-----
> That really is more complicated than you need.
>
> A single DPDT relay and some wire will do the trick.
-----8<-----
> The net result of all that wiring is that the servo is normally
> connected
> to the C-band receiver, until you turn on the Pansat. Then the servo
> is connected to the Pansat receiver (until you turn it off).

Ummmmm.....Yeah..... What he said..... *MUCH* simpler.....<G>

Thnik about it!
Dead_Dad
Anonymous
October 22, 2004 1:33:42 AM

Archived from groups: alt.video.satellite.mpeg-dvb (More info?)

On Thu, 21 Oct 2004 11:59:56 GMT, "lurknowhere"
<lakerror1shmi@wolferror2mark.com> wrote:

>
>
>>
>> In any case, you also need to go into the Pansat's LNB setup menu and
>> enable the +12V switch option for your LNB. This is not the same thing
>> as the LNB power option. Normally, the +12V option is used to turn on
>> a A/B switch for when you've got more than 1 LNB going into the receiver.
>> In fact, you can buy a +12V LNB switch and use it for this purpose as
>> well. The Dish Network SW-AJ works fine for this purpose, assuming you
>> can fine one anymore.
>>
>> The net result of all that wiring is that the servo is normally connected
>> to the C-band receiver, until you turn on the Pansat. Then the servo is
>> connected to the Pansat receiver (until you turn it off).
>
>
>NO active switched 12 volt terminal available on the 2500 as far as I know.
>It would be nice.


I believe it can be enabled in firmware at the cost of your s/pdif
jack. Seems like a downgrade to me. Make a manual switcher device with
a row of knife switches. :) 
Anonymous
October 22, 2004 9:00:53 AM

Archived from groups: alt.video.satellite.mpeg-dvb (More info?)

lurknowhere wrote:
>>In any case, you also need to go into the Pansat's LNB setup menu and
>>enable the +12V switch option for your LNB. This is not the same thing
>>as the LNB power option. Normally, the +12V option is used to turn on
>>a A/B switch for when you've got more than 1 LNB going into the receiver.
>>In fact, you can buy a +12V LNB switch and use it for this purpose as
>>well. The Dish Network SW-AJ works fine for this purpose, assuming you
>>can fine one anymore.
>>
>>The net result of all that wiring is that the servo is normally connected
>>to the C-band receiver, until you turn on the Pansat. Then the servo is
>>connected to the Pansat receiver (until you turn it off).
>
> NO active switched 12 volt terminal available on the 2500 as far as I know.
> It would be nice.

I'm not actually familiar with the 2500a itself.
I've used other Pansat DVB receivers, and they have the +12V port.

I've found a picture of the 2500a's backside:

http://www.kusat.com/P/mpeg2/pansat2500a-back.jpg

If you compare it with the back of the 2300a:

http://www.commsearch.com/2300A-back-1.jpg

You'll notice that the unlabeled terminal on the back of the 2500a is
the 0/12V terminal on the back of the 2300a. In fact, the back panel
of both receivers otherwise look identical.

If they have "deleted" the 12V port, that would be a shame. Perhaps it
is just a matter of firmware.
Anonymous
October 22, 2004 9:04:15 AM

Archived from groups: alt.video.satellite.mpeg-dvb (More info?)

Dead_Dad wrote:
> Zoyburg wrote:
>>Dead_Dad wrote:
>>>Gary J. Tait wrote:
>>>>On Thu, 14 Oct 2004 08:51:39 -0500, Matt Scoff <xxscoffxx@aol.com> wrote:
> -----8<-----
>>>Sears Canada has a switching gizmo that might be just what you are
>>>looking for. It has two receptacles set up so that when the device
> -----8<-----
>>That really is more complicated than you need.
>>
>>A single DPDT relay and some wire will do the trick.
> -----8<-----
>>The net result of all that wiring is that the servo is normally
>>connected
>>to the C-band receiver, until you turn on the Pansat. Then the servo
>>is connected to the Pansat receiver (until you turn it off).
>
> Ummmmm.....Yeah..... What he said..... *MUCH* simpler.....<G>

Even the simplest things in life can become very complicated when
explained in enough detail to be replicated.
Anonymous
October 23, 2004 9:42:25 PM

Archived from groups: alt.video.satellite.mpeg-dvb (More info?)

On Fri, 22 Oct 2004 13:06:58 GMT, "lurknowhere"
<lakerror1shmi@wolferror2mark.com> wrote:


>Are you saying that the s/pdif feature would be disabled, or just the output
>jack? What was once the 12V out connector is no-longer wired to the
>motherboard, and of course, its control is omitted from the menu. I wish
>Pansat would update their firmware to include this option.

It comes from the same place on the motherboard on
a1500/2300/2500/lifetime/ultra. I'm not sure if the circuit is
modified, but my experiments with changing an ultra into a 2500 have
shown most things do work, UHF remote and polarizer anyway.
The 1500 has the option, I think it and the lifetime are the only
ones. I will try it eventually, can't remember if it uses the same FW
as a 2300 or 2500.

> I use it for FTA
>purposes only and would like to select many more ku lnb's automatically.
>However, I can see some unique possibilities with the servo pulse train out
>port other than for polarity control. Match the +90 / -90 range user preset
>to control a servo motor driving a cam aligned with microswitches -- design
>and program a switch position every 10 degrees or so. Also opens a doorway
>to a different sort of homebrew dish mover for those with the imagination
>and understanding of servo motor drives -- small or large. All with No mods
>and No violation of manuafacturer warrantee -- everybody's happy!

I would like to use the 12v switch to get between two 4x1's Using a
22khz doesn't seem to work on the 22khz side.
I would also like the device you are building, hurry up. :) 
I would sure rather have the 922 and 2500 interfaced with a cable to
allow them to share polarity control...
!