[Pro2006] Another question on the Opto 456

[STUDIODED at aol.com]

In a message dated 11/4/05 2:02:28 AM, tommyboys_ads at verizon.net writes:


> ok I'm confused (easily done - grin) in the O456 installation manual - the
> question is it says there is a AUDIO LINE and a ANALOG LINE  , are they
> attached to the 456 board its self or ?? I'm looking over a 2006 I have here
> to make sure it was installed right and I DO NOT SEE any lines running to
> the TP2 connection or the IC chip ???????? Would they possibly be inbetween
> the boards ? reason I ask - the manual says to route them up top and I don't
> see any ????? any help appreciated in advance.
> 

I can't find my OS456 manual as it's been years but I'm pretty sure if you 
don't have the analog wire attached to the TP2 (test point 2) then you have the 
OS456 "lite" which does not have PL/DPL tone decode and therefore doesn't have 
the 2nd wire. The full version OS456 (w/PL-DPL) board was the first to be 
discontinued. The original vendor could no longer provide Opto with a certain 
chip and Opto could not find a new source (or cheap enough source). Opto did 
continue to sell the "lite" OS456 version for several years though. 


Dave                         Chicago Area Radio Monitoring Association
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