If what you want is to synchronize devices, you can do it without knowing these details about relays, etc, as long as all devices can be controlled using a computer. All you need is a scripting language like AutoIt. I have used this approach for years now and it works very well.

Matheus C. Carvalho
Centre for Coastal Biogeochemistry, Southern Cross University, Australia
Editor for Plos ONE and HardwareX (Elsevier)

Online course about lab automation: bit.ly/2Hg5gfj

Book: Practical Laboratory Automation Made Easy with AutoIt
Open source autosampler for liquids: bit.ly/2QVnDJU
Open source autosampler for solids: bit.ly/3erjacu
Autosampler for shallow waters: bit.ly/34cHKut

On Sat, Oct 3, 2020 at 5:58 AM Herbert Tobias <[log in to unmask]> wrote:
And these would be able to be controlled by time in the software.
We will need to control external custom peripherals.

On Fri, Oct 2, 2020 at 2:47 PM Herbert Tobias <[log in to unmask]> wrote:
Hi Seth,
We are looking for contact closures and/or on/off voltages (i.e 12/24V).
I don't have a system in front of me to test.

On Fri, Oct 2, 2020 at 2:43 PM Seth D Newsome <[log in to unmask]> wrote:
Hi Herb...

Hope all is well... Can you provide a bit more information about what you mean by triggers/relays? 


Seth D. Newsome
Associate Professor, Biology
Associate Director, CSI
University of New Mexico
Department of Biology
Albuquerque, NM 87131

On Oct 2, 2020, at 1:37 PM, Herbert Tobias <[log in to unmask]> wrote:


Hi All, 
I have been looking into what comes as far as optional/additional relays/triggers on the Thermo Trace GC that comes with the full GC-MS/IRMS package.
As usual, Thermo itself can't answer these questions (which is very weird considering they provide it).
I would like anyone on the list to help inform what they got and the tinkerers explain the options of a full system as such. The lab we are going to partner with has a full system, but they don't understand what they have; they use service contract.
Any pictures and/or explanations would be helpful.