PC-771L PC775-1A-12C-D2-X PC775-1A-12C-D-X PC775-1A-12C-R-X PC775-1A-12C-X PC775-1A-24C-D2-X PC775-1A-24C-D-X PC775-1A-24C-R-X PC775-1A-24C-X PC775-1A-6C-D2-X