I served with women in non-combat roles. Officially noncombat. Signal units tend to be everywhere, including the "front lines." Thing is, there rarely is a front line anymore. Combat can be friggin anywhere.
It's very simple. Allow women to join if they wish, and keep the standards uniform and job specific. Can you raise an antenna mast? Fine. You can be a 25U. Can you ruck 80 lbs for 20 miles? Fine, you can be an 11B. PT standards are not the best indicator. They're good enough indicators. I had PT gods that could not hang during forced ruck marches carrying their load, plus SAW, plus body armor, plus the kitchen sink. I've had PT gods that could max running, situps and pushups... And couldn't lift a 60 lb radio or carry an M2 by himself. (Fillipino dude, I think he weighted maybe 100 lbs, he was often on profile to INCREASE his weight.) But, by and by, PT scores are the lowest common denominator.
Some female soldiers were good, some sucked horribly, and most were good enough to get the job done. We had an all-female medevac crew, that everyone requested first because they were very good. We also had female soldiers NO ONE requested, EVER. Best and most requested female soldier I knew was Bombe. She was tiny. Like, "How did she get into the Army, even with a waiver?" tiny. She was a wrench monkey, and could fit into engine compartments that no other guys could. Often, one or two of the big guys would pick her up, and lower her into the engine, and she could fix whatever upset down, with no issues. Walking through the motor pool, you'd often see two feet sticking out of the most random places on, in or under vehicles. She wasn't the best skilled wrench monkey (that was the MSG, 30+ years in), but she was a very practical one.
Set the standard, and set it appropriately. Those that make it will do good enough.