PL611S-28-515TC A1 PL611S-28-515TCA1 PL611S-28-515TC-R PL611S-28-678TC-R A1 PL611S-28-678TC-RA1 PL611S-28-685TC-R A3 PL611S-28-685TC-RA3 PL611S-28-720TC-R A1 PL611S-28-720TC-RA1 PL611S-28GC-A1