A while back, Dave Barker created a h1susauxb123 model by adapting the h2susauxb478 model. It was a quick first approximation which just deleted the FMx and FMy sections and the corresponding three extra DAC cards, and it had sat around uncommitted to the SVN.

Today I checked it against the circuit diagram D1100022-v9, fixed a few errors, and committed it. Dave plans to install it tomorrow during maintenance and try it out.