[vdr] diseqc relay cascade

Jiri Jansky janskj1 at fel.cvut.cz
Mon Aug 30 10:28:25 CEST 2010


Hi,
I tried make diseqc command shorter. First function resolution is

S23.5E  11700 V  9750  t v [E0 10 38 F0] W15 t
S23.5E  99999 V  10600 t v [E0 10 38 F1] W15 T
S23.5E  11700 H  9750  t V [E0 10 38 F2] W15 t
S23.5E  99999 H  10600 t V [E0 10 38 F3] W15 T
S19.2E  11700 V  9750  t v [E0 10 38 F4] W15 t
S19.2E  99999 V  10600 t v [E0 10 38 F5] W15 T
S19.2E  11700 H  9750  t V [E0 10 38 F6] W15 t
S19.2E  99999 H  10600 t V [E0 10 38 F7] W15 T
S13.0E  11700 V  9750  t v [E0 10 38 F8] W15 t
S13.0E  99999 V  10600 t v [E0 10 38 F9] W15 T
S13.0E  11700 H  9750  t V [E0 10 38 FA] W15 t
S13.0E  99999 H  10600 t V [E0 10 38 FB] W15 T
S1.0W   11700 V  9750  t v [E0 10 38 FC] W15 t
S1.0W   99999 V  10600 t v [E0 10 38 FD] W15 T
S1.0W   11700 H  9750  t V [E0 10 38 FE] W15 t
S1.0W   99999 H  10600 t V [E0 10 38 FF] W15 T

I tried to modified it if it will behave as you swith and I was su 
successful:

S23.5E  11700 V  9750  t v [E0 10 38 F0] W15 t
S23.5E  99999 V  10600 t v [E0 10 38 F0] W15 T
S23.5E  11700 H  9750  t V [E0 10 38 F0] W15 t
S23.5E  99999 H  10600 t V [E0 10 38 F0] W15 T
S19.2E  11700 V  9750  t v [E0 10 38 F4] W15 t
S19.2E  99999 V  10600 t v [E0 10 38 F4] W15 T
S19.2E  11700 H  9750  t V [E0 10 38 F4] W15 t
S19.2E  99999 H  10600 t V [E0 10 38 F4] W15 T
S13.0E  11700 V  9750  t v [E0 10 38 F8] W15 t
S13.0E  99999 V  10600 t v [E0 10 38 F8] W15 T
S13.0E  11700 H  9750  t V [E0 10 38 F8] W15 t
S13.0E  99999 H  10600 t V [E0 10 38 F8] W15 T
S1.0W   11700 V  9750  t v [E0 10 38 FC] W15 t
S1.0W   99999 V  10600 t v [E0 10 38 FC] W15 T
S1.0W   11700 H  9750  t V [E0 10 38 FC] W15 t
S1.0W   99999 H  10600 t V [E0 10 38 FC] W15 T

So, it seams that I have same switch as you. And it seams, that few last 
bits of last byte isn't important for diseqc switch.

So can I still use it to cascade?

I think, that one solution how use it this switch is buy another 
uncommitted diseqc switch. I tried to find it using google, but I found 
only uncommitted 16 input switch. Is here another (cheaper) solution 
that buy this 16 input switch and substitute 4 input switch with it?

Thanks
Jiri Jansky


Timothy D. Lenz napsal(a):
> After looking back at the specs I am a bit confuse about "commited" and 
> "uncommited" also. I thought a standard port was uncommited, but 38 is 
> what I have been using. Someone else may need to jump in, but the 4 
> commands for the 4 ports for my switch are
> 
> [E0 10 38 F0]
> [E0 10 38 F4]
> [E0 10 38 F8]
> [E0 10 38 FC]
> 
> The chart in the pdf for yours indicates maybe F0,F1,F2,F3 is correct 
> for yours. you will have to just test and see.
> 
> As for the stacking, Looks like you have "universal" lnb. They cover a 
> wider band then a standard and do it in 2 steps. It should have a 22Khz 
> switch built in and you select between lo and hi with the tone command 
> (t/T) wwhich you have at the end of your lines.
> 
> Horizontal and vertical polarities are selected with the voltage (v/V). 
> Band stacked LNBs switch by changing the local oscillator only. You 
> don't have a BS lnb. I would recommend simplifying your commands and 
> first working out which address are used (0,4,8,C or 0,1,2,3). Then if 
> you have problems with it not always switching, you look at repeating 
> the commands.
> 
> S23.5E  11700 V  9750  t v [E0 10 38 F0] W15 t
> S23.5E  99999 V  10600 t v [E0 10 38 F4] W15 T
> S23.5E  11700 H  9750  t V [E0 10 38 F8] W15 t
> S23.5E  99999 H  10600 t V [E0 10 38 FC] W15 T
> 
> Also, S23.5E ?? You can't see that sat from north america. The best you 
> could hope for is around 30-40w to around 150-160w and that is iffy.
> 
> On 8/27/2010 4:20 AM, Jiri Jansky wrote:
>> Hi,
>> I read "Bus specification" http://www.eutelsat.com/satellites/4_5_5.html
>> and it isn't still clear for me.
>> My diseqc.conf file is slightly different from your example, so I
>> attached it to this mail.
>> There is example, where mini A and mini B command is used. But i didn't
>> find anything about this command in eutelsat documentation nor source
>> code (these commands are implemented as ioctl() in fronted source code
>> module).
>>
>>
>> Timothy D. Lenz napsal(a):
>>> Not sure if this is what you mean, But for an example, The dishnetwork
>>> dual lnb has a switch in it and responds to F1/F5 vs a standard switch
>>> which would be F0/F4. The standard switch will only respond to F0/F4
>>> while I think the DN switch will respond to ether set. So Putting a DN
>>> dual LNB on a standard 1x4 switch woudl look like this:
>>>
>>> S110.0W 99999 R 11250 t V W15 [E0 10 38 F4] W25 [E0 11 38 F5]
>>> S110.0W 99999 L 14350 t V W15 [E0 10 38 F4] W25 [E0 11 38 F5]
>> I don't understand why in our example F4 is port number, but in my
>> config file the last number is incrementig with next
>> polarizationo/highband:
>> S23.5E 11700 V 9750 t v [E0 10 38 F0] W15 [E1 10 38 F0] W15 [E1 10 38
>> F0] W15 t
>> S23.5E 99999 V 10600 t v [E0 10 38 F1] W15 [E1 10 38 F1] W15 [E1 10 38
>> F1] W15 T
>> S23.5E 11700 H 9750 t V [E0 10 38 F2] W15 [E1 10 38 F2] W15 [E1 10 38
>> F2] W15 t
>> S23.5E 99999 H 10600 t V [E0 10 38 F3] W15 [E1 10 38 F3] W15 [E1 10 38
>> F3] W15 T
>> I would supposed, that if it's connected to one diseqc relay input, that
>> there will by same number everywhere.
>>
>>
>>> Because this is for a band stacked DishPro LNB, you change the LO to
>>> select R/L and keep the voltage up. E0 10 38 F4 is the command for a
>>> standard 1x4 switch to use the second port (ports are FO, F4, F8, FC).
>>> Then you have a short pause to allow time for the first switch to
>>> select that port. Then you send the second command. Not also the "t"
>>> for tone control. You can stack a tone switch in also. Have it select
>>> between one of 2 1x4 switches to get you 8 ports. You can only have 1
>>> tome switch in any given path because they can not be addressed. Ether
>>> you send tone or you don't.
>> How can I use tone to stack switch(how to write diseqc.conf line)?
>> According eutelsat documentation tone is send after binary command in
>> bracket.
>>
>> Now, I have 4 input diseqc switch controlled by line in attached
>> diseqc.conf file. According manufacturer
>> (http://www.emp-centauri.cz/products.php?page=products&id_kateg=5&id_pkateg=19&id=62) 
>>
>> this switch is controlled from a receiver with "Position" and "Option"
>> commands. According table in chapter 8.3. Command Byte of eutelsat
>> docuemntation positon and option commands are numberes 22, 23, 26, 27.
>> But these commands aren't use in my diseqc. Instead it is used 38
>> command which mean "write too commited switches". But again I don't know
>> what is "commited" and "uncommited" switch.
>>
>>> To stack switches you need what is called committed switches for the
>>> secondary switch. They us a different address. If additional switches
>>> are needed, make sure each in the string will pass commands not
>>> addressed to them. As far as I know they all should.
>>
>> So, I have commited switch (and don't know what is mean). Now i want to
>> buy one two-input-diseqc-relay and put it between dvb-s card and
>> four_input-diseqc relay. Which one two-input-diseqc-relay I should buy?
>> The one controlled by position, or one controlled by option
>> (http://www.emp-centauri.cz/products.php?page=products&id_kateg=5&id_pkateg=19&id=61)? 
>>
>> And how diseqc.conf line will look like? And how to not interference
>> with postiono/option command of four-input-diseqc-relay? I can buy this
>> one
>> two-input-diseqc-relay(http://www.emp-centauri.cz/products.php?page=products&id_kateg=5&id_pkateg=15&id=238), 
>>
>> that can be controlled by postion or tone-burst commad. But still don't
>> know, how to write diseqc line for it and how to don't interference with
>> position command of four-input diseqc-relay with position commad of this
>> two-input-relay.
>>
>> Can anybody help me with this questions?
>>
>>
>>
>>> On 8/18/2010 6:40 AM, Jiri Jansky wrote:
>>>> Hi,
>>>> I read, that is posible connect diseqc relay to cascade (one two input
>>>> relay and two four input relay for example). I read that not all
>>>> receiver are able to use it (linux based, like dreambox are).
>>>> I would like to setup one two input relay and one four input relay to
>>>> get five input for convertor in VDR. Is anybody familier with
>>>> diseqc.conf and Can you help me how to set it up? Now, I use four input
>>>> relay only, but I don't know what number in diseqc.conf file mean.
>>>>
>>>> If this will be posible I would like to use diseqc relay input to often
>>>> watched tv stations and motor to rotate whole dish to different postion
>>>> for experimentation and use only central converter for watching. Would
>>>> be possible to use VDR for this purpose too?
>>>>
>>>> Thans for your advise
>>>> Jiri Jansky
>>>>
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>>
>>
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