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THR22 and RS-232

Discussion in 'DIRECTV DVR with TiVo Discussion' started by Mr. Big, Feb 11, 2012.

  1. Mr. Big

    Mr. Big Mentor

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    Nov 5, 2007
    Is there an RS-232 port on the back of the THR22 or does it use the USB connector like the rest of the DirecTV DVRs.
     
  2. litzdog911

    litzdog911 Well-Known Member

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    Jun 23, 2004
    Mill Creek, WA
    For what sort of functionality?
     
  3. Mr. Big

    Mr. Big Mentor

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    Nov 5, 2007
    To control all the remote control functions.
     
  4. Stuart Sweet

    Stuart Sweet The Shadow Knows!

    37,060
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    Jun 18, 2006
    I think there is a crestron system that you can use but you can't just pass commands through USB or Ethernet like you can with a regular directv DVR.
     
  5. Mr. Big

    Mr. Big Mentor

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    Nov 5, 2007
    That's a deal breaker for me. I'm using the USB dongle with my Universal Remote MSC400 to send RS-232 serial commands to my HR24 to control it. It also worked on the older HR20. Too bad they omitted that functionality with the THR22.
     
  6. macq

    macq AllStar

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    Feb 19, 2006
    If you've never used a Tivo before you may find you prefer their peanut remote to your universal for controlling its program selection and playback.

    I use my programmable universal for power on/off, switching sources and a few other bits but grab the Tivo remote when watching that. For me, that's always been one of its advantages - a clean, sensible, small remote. I've never touched a universal that I would prefer - but of course that's a matter of preference.
     
  7. Mr. Big

    Mr. Big Mentor

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    Nov 5, 2007
    Yes, I've used their peanut remote in the past, but I've programmed macros on
    my MX-5000/MSC-400 (using RF) that's simplified everything I do with my home theater setup. It's nice not having to use multiple remotes.
     
  8. macq

    macq AllStar

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    Feb 19, 2006
    Yeah, if you are frequently needing macros and such its a pain to switch remotes. In my case I use my universal w/macros mostly just to power on/off my equipment and set the source - usually to the Tivo. Then I grab the Tivo remote for the rest of my watching until I power off. It's not a big deal since once I start watching a Tivo show I'm usually there for awhile and pressing quite a few buttons - I'm a trick play nut and like swapping between tuners, FF, slow-mo, jump back and all those neat tricks that are just easier on the peanut than a universal - even one as nice as the MX-5000.

    Heck, I have a Vudu and that pretty much requires using its remote - hard to emulate a scroll wheel with a universal!
     
  9. midas69

    midas69 AllStar

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    Jan 30, 2008
    Actually there is an Android app that controls the THR-22 very well through Ethernet. Alas, it's not the Tivo Android app. But it does prove Ethernet control is possible.
     
  10. alk3997

    alk3997 New Member

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    Feb 7, 2011
    I'm using the MSC-400s as well (master and slave) for the DirecTV boxes but with IR. The DirecTV boxes work perfectly on IR, so I have the RS-232 ports allocated to boxes that aren't as good with IR (like our AVR). The IR commands are stored in the MSC-400 and triggered from the remotes. The one advantage to IR is that you can have multiple unlike outputs on the same MSC-400 output port, unlike RS-232.
     
  11. alk3997

    alk3997 New Member

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    Feb 7, 2011
    I have to agree with that. Wouldn't trade the single remote for anything. And, the MSC-5000/6000s are great for emulating the peanut remote. Not a single difference - even get the thumbs-up and thumbs-down graphics.
     
  12. Myfins13

    Myfins13 New Member

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    Mar 3, 2012
    I can confirm that the thr22 uses the USB port with a serial USB connector to use rs232 commands. I can also confirm that the MSC-400 works with the thr22. Although there are about 6 keys that are buggy. They are: up, down, left, right, ch +, ch -. I'll explain.

    Up & down: within menus or guide when pressed it will just go up or down non stop at a fast rate and won't do it one line at a time. And it never stops.

    Left and right: works mostly but on some system menu screens it does much the same as the up and down. But works well in the guide.

    Missing or unknown serial commands: thumbs up, thumbs down, swap, clear, live tv. But I use exit as live tv and mostly works.

    Ch + & -: works on changing channels. But when used in systems menus to go page up and down a screen at a time does not work like usual.

    The solution: I had to use IR for the buggy/missing keys. So I'm now using both IR and rs232 for the thr22. On top of that I couldn't find thr22 codes in URC database for ID 3 & 4. So the IR buttons had to be learned from the remote.

    Additionally just wanted to comment in using more than 6 rs232 on the MSC-400. You can use multiple devices on 1 rs232 port on the MSC-400. You can use a "y" splitter but it must be a 4 connector "y" splitter which is hard to find. It's easier if you make your own rs232 cables for your msc-400. The caveats are as follows: all devices on the single port need to use the same settings such as baud/parity/stop bits for all devices you will share with that port. Additionally, you cannot put two of the same device on each port such as directv receivers. They have to have different serial commands. Much like IR when you send a command to the device, it will ignore it if it doesn't recognize the command. I use my serial port 7 for my 4x4 hdmi monoprice switch. And port 8 is used for a 4x2 hdmi monoprice switch. They both have identical serial commands so they can't share a port with each other. I also have a thr22 on ports 7 & 8 shared with the hdmi switches. The thr22's both use identical commands as well so they can't share a port. But since the commands are different from the hdmi switch they can share a port since the baud settings are identical. When a command is sent on port 7 for the hdmi switch it is sent to both the switch and the thr22 but the thr22 ignores it since it isn't a valid command for it. However the switch accepts the same command received but accepts it as a recognized command.
     

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