Mesa sserial cards combination for 3 analog servos + I/O

I'm looking at the Mesa cards available now for driving 3 servos with +/-10V and thinking to go with a 7I94T, one 7I83 for the servo drives and one 7I84U for various I/O like limits and buttons. Since I have not worked with this combination before, I would like your input if this is going to work. Are one of these ready made firmwares going to work, or I will need to create a new one (I have done it more than 10 years ago for creating a custom one for a 5i22, but not sure what I did back then  )

7i94t_16m_fallback.bin
7i94t_5abobd.bin
7i94t_7i74_ss_bissd.bin
7i94t_7i74_ss_bissd.pin
7i94t_7i74ssd.bin
7i94t_7i74ssd.pin
7i94t_7i76d.bin
7i94t_7i77d.bin
7i94t_7i85sd.bin
7i94t_7i89d.bin
7i94t_7i89d.pin
7i94t_bissd.bin
7i94tss_bissd.bin
7i94tss_bissd.pin
7i94t_ssd.bin
7i94t_ssid.bin

You would need an encoder interface as well (7I85,7I85S,7I89)

Might be simpler/cheaper to use a 7I97T
 

Right! Well, I was sure as I wrote this that the 7I83 also has encoder inputs as well!
7i97T here says it's out of stock though:

store.mesanet.com/index.php?route=produc...t_id=397&search=7i97

Do you know when are you going to have it back in stock?

Also, on the previous subject, if I decided to go the sserial route adding e.g. a 7I85, is one of the stock firmwares going to work without modifications?

If you are on the US, mesaus has some.

if in the EU, eusurplus shows stock


We will have more 7I97T stock in 7-8 weeks