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RE: [PSUBS-MAILIST] Proposed PSUBS standard bulkhead connector
Over time I have had difficulties with Ikelite connectors as the slotted
pins do not make great contact after repeated matings. The pins are slotted
and compress to a smaller diameter.
R/Jay
-----Original Message-----
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of andy goldstein
Sent: Thursday, December 17, 2009 6:03 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Proposed PSUBS standard bulkhead connector
You could look into using Ikelite connectors:
http://www.ikelite.com/web_pages/ics_conn.html
The used to be significantly cheaper than molded connectors like
seacon/subconn/etc.
The ikelite connectors are not wet matable, but they do have an o-ring
sealing surface. IIRC the way they sealed around cables was not so great,
esp. with cables that could move. But they are an option.
-a
Smyth, Alec wrote:
> David,
> Although inside the cabin things are supposedly not underwater, they
> are very far from dry. I only use explosion-proof switches, for
> instance, because those are sealed and therefore humidity-proof. What
> I'm wondering is whether there are any connectors that, without going
> to the extreme of the outboard ones, one might call "splash-proof"
> grade? So far I've been using Radio Shack, but would like something a
> little more rugged if anyone has a suggestion. For example, perhaps
> one of the trailer hitch connectors might do.
> thanks,
>
> Alec
>
> ----------------------------------------------------------------------
> --
> *From:* owner-personal_submersibles@psubs.org
> [mailto:owner-personal_submersibles@psubs.org] *On Behalf Of *David
> Bartsch
> *Sent:* Thursday, December 17, 2009 5:38 PM
> *To:* personal_submersibles@psubs.org
> *Subject:* RE: [PSUBS-MAILIST] Proposed PSUBS standard bulkhead
> connector
>
> Alec,
>
> Great work as always!
> As you are aware, I use only two wires for either the voice
> transmitter or passive hydrophone. These two wires (for either
> purpose) terminate prior to connection to the communications console
> unit with a simple 1/4" jack. These are acquired two to a container at
> Radio Shack. (Use the ones with plastic shrouds covers or bad things
> can happen...ask Kyle!) Exactly how to connect both separate cables at
> this single tie point at the submarines inner hull I will have to
> leave for someone more in the know. Perhaps just a custom soldering
> job could do the trick.
> Should cross talk between the two functions result, I do not feel it
> would be a real issue.
>
> David Bartsch
>
> ----------------------------------------------------------------------
> --
> Subject: [PSUBS-MAILIST] Proposed PSUBS standard bulkhead connector
> Date: Thu, 17 Dec 2009 17:16:43 -0500
> From: Alec.Smyth@compuware.com
> To: personal_submersibles@psubs.org
>
> Hello friends,
> A little time ago I volunteered to identify a bulkhead connector we
> could standardize on. There would be clear practical and safety
> advantages to this. For example, at the next PSUBS convention some of
> us will have comms gear and if we all have a standard connector on our
> boats, we can pass the comms gear around. It also should facilitate
> the adoption of devices developed by David Bartsch or other PSUBS
> members. I've evaluated products from Seacon, Subconn, and Impulse and
> now have a specific connector to propose. Products from the three
> vendors were of roughly equivalent specs, and in all cases amply
> exceed the needs of your typical PSUB.
> The one I'd like to propose is from Subconn, because they came through
> with a 20% discount for PSUBS. Standard off-the-shelf comms such as
> OTS or Divelink require only 2 conductors for their transducers. I am
> proposing we adopt a 4 contact connector so we could also plug in
> David Bartsch's combined comms and hydrophone. Or one could combine a
> comms transducer with a depth sounder (2 conductors each). These
> penetrators are rated for 10 amps per conductor, 600V, and 20,000 psi.
> They are "wet mateable", so gear can be switched between boats without
> needing to pull the boats from the water. Here is the spec sheet:
> _http://www.subconn.com/filer/1031/Standard_Circular_4_Contacts.167326
> 3891164403.pdf_
>
> Specifically, the part numbers I am suggesting are:
> BH4F, which screws into the hull and has 4 female contacts outside,
> ordinary leads on the inside. ($76.90) IL4M, which is the outboard
> cable and male plug. ($42.30) DLSA-F and DLSA-M, a plastic locking
> sleeve that connects the two parts together. This is optional and only
> really necessary if there is movement in the cable. ($6.30) DC4M, a
> blank plug that protects the penetrator if you dive without anything
> connected to it. Also optional. ($18.30) The above are list prices. If
> we order a quantity of 1-10, we get 20% off. If we order more than 10,
> it'll be 25% off.
> Please tell me whether you agree with this selection, and if so
> whether you are on board for placing an order. Let me know the number
> of connector sets you would purchase (in my case it's 2). Adding up
> the responses we'll know our discount, and I propose each of us then
> place his order separately since shipping has to be individual in any
> case.
> Dan Lance has volunteered the use of his OTS comms gear for the next
> convention, and has already sent me its cables. I will go ahead and
> connect his outboard (transducer) cable to an IL4M. For the inboard
> cable, I have to identify something inexpensive thats widely available
> (think Radio Shack) to connect the penetrator leads with his cable.
> Any suggestions for the inboard connector?
>
> Thanks,
>
> Alec
>
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--
Andy Goldstein
Director Software Engineering
VideoRay LLC
580 Wall Street
Phoenixville PA 19460
Tel: 610.458.3000 ext 3020
Cell: 401-490-1707
Skype: videoray.ag
http://www.videoray.com
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