12000-V-1/2/4 SERIES Managed (a-d) Video Optical-ray machine
12000-V-6/8 SERIES Managed(60 a Octuple)Video Optical
12000-V-12/16 SERIES Managed(l 16)Video Optical
12000-V-24/32 SERIES Managed(24-32)Video Optical
12000-V-40/48 SERIES Network type(40 - 48)Video Optical
12000-V-60/64 SERIES Managed(aged - 60 d)Video Optical