[time-nuts] PTS synthesizers

Rex rexa at sonic.net
Fri Feb 10 00:30:31 UTC 2012

The pin-outs are the same on the BCD input connector, but how the 
high-order controls map differs between models.

For example, the PTS-160 doesn't use the 4-bits for 100 MHz, but rather 
takes input on the 10 MHz bits up to a value of 16. The PTS-250 does use 
the 100 MHz bits, with values of 0, 1, or 2 as possibilities. One might 
expect the PTS-160 to respond to 0 or 1 on the 100 MHz inputs, but that 
isn't the way it is designed.

On 2/9/2012 2:15 PM, Geraldo Lino de Campos wrote:
> Yes, the pinout is the same for all models. If anyone is interested, I have
> the manual for the PTS-3200 and can send the interface pinout.
>> Message: 9
>> Date: Thu, 09 Feb 2012 11:41:52 -0800
>> From: ed breya<eb at telight.com>
>> To: time-nuts at febo.com
>> Subject: Re: [time-nuts] PTS synthesizers
>> Message-ID:<201202091942.q19Jg15d031116 at mail16c40.carrierzone.com>
>> Content-Type: text/plain; charset="us-ascii"; format=flowed
>> Thanks, Nigel, I think your history description is about right - I
>> vaguely recall seeing the Rockland brand too. I guess PTS is the
>> current survivor - the PTS D310 seems quite new, and the company
>> seems to be still in business in their niche.
>> Ignacio sent me a pinout page for the PTS 040/160/250, which probably
>> represents a standard arrangement used for all the models, hopefully
>> just extended by including more bits for higher frequency units. The
>> D310 is a dual .1 - 310- MHz type, with two program connectors. Also,
>> I do recall that they used IEC color codes on the ribbon cables for
>> convenient tracing of the 8,4,2,1 bits within each BCD digit, so it
>> should be fairly easy to figure out the details.
>> Ed
>> ------------------------------------
> Geraldo Lino de Campos
> geraldo at decampos.net
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