[vdr] diseqc relay cascade

Jiri Jansky janskj1 at fel.cvut.cz
Mon Aug 30 20:38:04 CEST 2010


Hi,
I wanted to get only one another input. But to achieve it I have to buy 
at least 2 input UNCOMMITTED switch. But i find only one 2 input 
uncommitted switch with price like 8 input uncommited swithc made in my 
country (czech republic) and with price of 70% of new motor (rotor). I 
think, that motor would be better solution.

I am almost sure, that standart switch is called COMMITTED

diseqc 1.0 - committed - max. 4 input LNB - diseqc command byte 0x38
diseqc 1.1 - uncommitted - max. 6 input LNB - diseqc command byte 0x39

diseqc command byte is according table in chapter 8.3 of diseqc 
documentation by eutelsat.

Now, I think that it's clear for me. On beginning I was confused from 
switching using tone burst, because I never seen anything different than 
universal LNB.

I glad for you help. Thank you.

Jiri Jansky


Timothy D. Lenz napsal(a):
> Yea, what you have is the standard switch and I think it is what is 
> called uncommitted, but not sure. So what you would need is a committed. 
> Basicly, you need one that is a different address and only responds to 
> that address. How many more ports do you need?
> 
> OH, and watch out for 1x8 switches. They combine tone with standard 1x4 
> which won't work for you since you need to use tone for band selection.
> 
> Here are some links I found with google.
> 
> http://www.techwatch.co.uk/forums/17311-8-way-lnb-switch.html
> http://www.techwatch.co.uk/forums/16267-daisy-chaining-diseqc-switches.html
> http://www.satelliteguys.us/free-air-fta-discussion/71478-possible-daisy-chain-diseqc.html 
> 
> http://www.satellites.co.uk/forums/multi-receiver-tv-systems-domestic-only/153413-multiswitch-vs-diseqc-switch.html 
> 
> 
> 
> On 8/30/2010 1:28 AM, Jiri Jansky wrote:
>> 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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>>>>
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