change stations to xports.
list config board xxxx on old tn754 and make sure all 8 ports show "u"
list mark and make sure no ports are marked.
If ports show "t" or "p" turn off tti. Then remove board when all ports show "u"
after boards are unplugged, verify that "change circuit-pack xx" shows blank where boards used to be or blank them out and submit.
plug in new tn2224, and now you can turn tti back on and or change stations to the new board.
A great teacher, does not provide answers, but methods to teach others "How and where to find the answers"
bsh
35 years Bell, AT&T, Lucent, Avaya
Tier 3 for 25 years and counting