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Optelator (was Gentner/Burk Voice Interface)
To: CRTech <crtech@crtech.org>
Subject: Optelator (was Gentner/Burk Voice Interface)
From: Andy Lynch <andy@myitguys.us>
Date: Mon, 1 Oct 2018 14:23:41 +0000
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Thread-topic: Optelator (was Gentner/Burk Voice Interface)

I’m assuming this isn’t an RJ45 connection, capable of protecting an incoming copper internet connection?  The pictures I can find online don’t make it obvious, one way or the other…






From: Mark Croom [mailto:markc@newmail.kinshipradio.org]
Sent: Monday, October 01, 2018 9:31 AM
To: CRTech <crtech@crtech.org>
Subject: Re: [CRTech] Gentner/Burk Voice Interface


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I also endorse this approach.


The Optelator is a pretty solid device, and since voice interface modules are expensive I thought they were a pretty good investment when I had the opportunity to implement them.




On Sun, Sep 30, 2018, 8:26 PM John Stortz <ka4flx@gmail.com> wrote:

I NEVER had ANY Voice Interface fail which was protected with an Optelator. 

These things insert fiber optic isolation into a conventional phone circuit. Last I heard, they're running about $300 but when you consider what they do, you can't afford not to have it for a line you need running 24/7. Lightning can still ruin a phone line, but the surges won't reach your equipment.

John S.


If corn oil is made from corn, and vegetable oil is made from vegetables, 

then what is baby oil made from?

*~Unknown Wise Guy~




On Wed, Sep 26, 2018 at 12:37 PM Shan Easterling <seasterling@afa.net> wrote:

        Odds are pretty good that the small PCB on which the phone jack is mounted is broken / dead / fried. When we were using a large network of these GSC 3000s, we replaced so many of these phone cards, as we called them, that we just started referring to these phone cards / PCBs as Gentner's factory lightning protection. And yes we also did have additional external lightning protection but those cards just seemed to still be highly susceptible to damage. It's an easy fix IF you can find a spare card...

Shan Easterling
AFR Engineering
PO Box 3206
Tupelo, MS  38801
Office 662–821–2006
Cell 662–523–6722

“It seems impossible until it’s done.” – Nelson Mandela

-----Original Message-----
From: Andy Larsen <andy@whwl.net>
Sent: Wednesday, September 26, 2018 11:01 AM
To: CRTech <crtech@crtech.org>
Subject: [CRTech] Gentner/Burk Voice Interface

I've got a GSC-3000 with a voice interface that has stopped making or receiving calls. We normally use the Lynx software for readings and control, but need the voice interface for callout after hours. I can still see it there in the Lynx software...it just doesn't make or receive calls. The phone line itself works both inbound and outbound.
I've removed the lightning protection from the line with no change. The connected phone rings on inbound calls and can pick up or make outgoing calls. I have also power cycled the unit with no change.

Any ideas on common problems, or suggestions on somewhere to repair? I have an email in to Burk about repair, but my recollection is that they don't support stuff that isn't current.

Andy Larsen

Gospel Opportunities, Inc.
130 Carmen Drive
Marquette, MI  49855

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