[PSUBS-MAILIST] OTS Issue

Fri Oct 25 10:33:00 EDT 2013

Alec\SCott,

Yes, i will take it to the dive shop first before tinkering any more.
Really annoying, its brand new!
thanks
James

On 25 October 2013 13:42, <swaters at waters-ks.com> wrote:

>  Alec,
> My surface unit works the same with the connecting wires creating a
> "switch" when the transducer is plugged in. My take is the connection in
> the transducer is broken or the surface unit is broken. James, you might
> take it to the tech dive shop and try one of there transducers and see
> if it works then. If not then you know it is the surface unit. If it is the
> surface unit, open up the surface unit and check the "switch" wires to be
> sure they haven't been disconnected. Check the speaker wires to be sure
> they haven't been disconnected. Just a some dumb possibilities... Make sure
> volume is turned up, make sure to test the transducer you put it in water
> or push it up against another transducer, be sure the speaker switch is
> turned on, be sure the surface unit has a fully charged battery. Probably
> not the problem, but just double check that stuff.
>
> Thanks,
> Scott Waters
>
>
>  -------- Original Message --------
> Subject: Re: [PSUBS-MAILIST] OTS Issue
> From: "Smyth, Alec" <Alec.Smyth at covisint.com>
> Date: Fri, October 25, 2013 5:30 am
> To: Personal Submersibles General Discussion
>  <personal_submersibles at psubs.org>
>
>  Sounds like our transducer connectors are a little different, which
> could be explained by the fact you have a surface unit whereas I use a
> diver unit on the surface. I know Dan Lance, Cliff, and Scott all have
> surface units like yours, so maybe they can weigh in. But to me it does
> sound like it might be broken, and your plan to plug in an un-hacked
> transducer the way to find out for sure. ****
> ** **
> ** **
> *From:* Personal_Submersibles [
> mailto:personal_submersibles-bounces at psubs.org<personal_submersibles-bounces at psubs.org>]
> *On Behalf Of *James Frankland
> *Sent:* Friday, October 25, 2013 8:20 AM
> *To:* Personal Submersibles General Discussion
> *Subject:* Re: [PSUBS-MAILIST] OTS Issue****
> ** **
>  Hi Alec,****
>   ****
>  Ok, at least i wasnt being a noddy.****
>   ****
>  So, this is what i did.****
>   ****
>  Plugged the batteries in and checked 12V at the output.  All ok.****
>   ****
>  At the back of the transducer socket, there are 3 wires coming out.  2
> go into 1 plug on the pcb and 1 goes into a seperate plug.  Lets call them
> A\B for the pair and C for the single.****
>   ****
>  I could just get my meter on the exposed wires to check voltage.****
>   ****
>  WITHOUT the transducer plugged in, I was getting 12v accross A\B to C
> and also continuity the same.****
>   ****
>  WITH the transducer plugged in i got nothing.  No voltage at all and no
> continuity between A\B and C.****
>   ****
>  Next I manually connected pins 1 to 3 together in all configurations.
> Nothing came on.****
>   ****
>  I have a horrible feeling its broken.****
>   ****
>  Next I am going to take the whole unit to my local tech dive shop.  The
> guy has lots of OTS kit and will have a transducer thats not been hacked
> for me top try.****
>   ****
>  regards****
>  James****
>  On 25 October 2013 13:09, Alec Smyth <alecsmyth at gmail.com> wrote:****
>  The OTS box does not know whether the transducer is in the water or not.
> What will turn it on is connecting the transducer cable. When you do so,
> you are closing the connection between contacts 1 and 3, and closing that
> circuit is the equivalent of clicking an "on" switch. ****
>  ** **
>  Best,****
>  ** **
>  Alec****
>   ** **
>  On Fri, Oct 25, 2013 at 6:52 AM, James Frankland <
> jamesf at guernseysubmarine.com> wrote:****
>  Hi Alec,****
>   ****
>  Before i report my finding of last night, i think i might be being a
> complete numpty.  I am assuming that the radio will come on even though the
> transducer is not in the water?  Obviously no signal but i was assuming the
> radio would at least crackle to life.  Does the transducer need to be
> underwater before the radio will switch on??****
>   ****
>  Thanks****
>  James****
>   On 24 October 2013 13:09, James Frankland <jamesf at guernseysubmarine.com>
> wrote:****
>  Hi Alec,****
>   ****
>  Ok, i think i get it.  I will investigate later and report back...!
> Many thanks.****
>  James****
>   On 24 October 2013 12:56, Alec Smyth <alecsmyth at gmail.com> wrote:****
>  Let me try and re-word this... You will find the cable has two
> conductors, but the connector has three contacts. Two of the contacts are
> connected to the same cable. Thus when you screw the connector onto the OTS
> unit, it closes a circuit between the two contacts. Don't cut open the
> connector, you can explore this just by checking continuity between the
> contacts. ****
>  ** **
>  Sorry, I hope I'm not repeating myself!****
>  ** **
>
> Alec****
>   ** **
>  On Thu, Oct 24, 2013 at 6:42 AM, James Frankland <
> jamesf at guernseysubmarine.com> wrote:****
>  Im a bit confused as when i cut the cable (some distance from the
> connector), there are only 2 cables.  The inner cable and the shield.  So
> not sure where this 3rd cable is.  I will take the connector appart and
> investigate....****
>   ****
>  Thanks****
>  james****
>   On 24 October 2013 11:20, Alec Smyth <alecsmyth at gmail.com> wrote:****
>  In the connector you screw onto the OTS box, just connect both 1 and 3
> to the same cable. ****
>  ** **
>  Best,****
>
> Alec****
>   ** **
>  On Thu, Oct 24, 2013 at 5:02 AM, James Frankland <
> jamesf at guernseysubmarine.com> wrote:****
>  Hi Emile\Alec,****
>
> Thanks for that info.  Not quite sure how i can connect pins 1 and 3, but
> i will have another look at it later on after work and see how it looks.**
> **
>  Many thanks****
>  James****
>   On 23 October 2013 18:14, Smyth, Alec <Alec.Smyth at covisint.com> wrote:**
> **
>
>   Hi James,****
>  ****
> OTS have done something clever. The OTS transducer has only two contacts,
> but the when you use the factory cable for mounting the transducer remotely
> you will notice the cable connector has three contacts. What they are doing
> is using two of them (#1 and #3) connected together to act as a switch, so
> that when you plug in the cable the OTS box turns on. I think if you keep
> your current arrangement, but also connect contacts 1 and 3, you might find
> it works.****
>  ****
> Best,
>
> Alec****
>  ****
>  *From:* Personal_Submersibles [mailto:
> personal_submersibles-bounces at psubs.org] *On Behalf Of *Emile van Essen
> *Sent:* Wednesday, October 23, 2013 12:34 PM
> *To:* 'Personal Submersibles General Discussion'
> *Subject:* Re: [PSUBS-MAILIST] OTS Issue****
>   ****
> James,****
>  ****
> It usually gives no problem to cut a transducer cable and solder it again.
> Don’t forget the shield.****
> Obvious, the transducer must be in water and may not be in the shade of
> the sub.****
>  ****
> Got mine on top of the sail. Best place but works not on surface..****
>  ****
> BTW; I am dealer of  Ocean Reef  UW Communication ;  This brand share the
> same technology as OTS so you can talk between the 2 brands..)****
>  ****
>  ****
> Best regards, Emile****
> .****
>  ****
>  ****
>  ****
>  ****
>  ------------------------------
>  *Van:* Personal_Submersibles [
> mailto:personal_submersibles-bounces at psubs.org<personal_submersibles-bounces at psubs.org>]
> *Namens *James Frankland
> *Verzonden:* woensdag 23 oktober 2013 18:05
> *Aan:* personal_submersibles at psubs.org
> *Onderwerp:* [PSUBS-MAILIST] OTS Issue****
>  ****
>  Hi All,****
>   ****
>  Anyone got any thoughts on this.****
>   ****
>  My OTS surface station mounted inside the sub didnt work.  It didnt even
> switch on.  I checked the Vout at the batteries (16x AAA inside the unit)
> and it was good at 12V.****
>   ****
>  I suspect the problem is that i cut the transducer cable to pass it
> through a sub conn bulkhead connector.  When you plus the transducer into
> the unit, that is supposed to turn it on at the same time, but nothing.
> Suspect no signal from the transducer so unit not switching on.****
>   ****
>  You can see the rubbish effort i made of it here.  Im almost sure this
> is the fault.****
>   ****
>  http://www.guernseysubmarine.com/Extended_files/Page22133.htm****
>   ****
>  Anyone got any ideas?  I need to get this fixed before the nest dive.****
>   ****
>  Thanks****
>  James****
> ** **
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