Viavi formerly JDS Uniphase Corporation TB4-DIS-QUAD-HPT T-BERD 4000 Multimode/Singlemode 850/1300/1310/1550 nm OTDR Package Deluxe, including T-BERD 4000 Fiber/Copper Platform, high power touchscreen, dual port 27/25 dB @ 850/1300nm Multimode & 37/35dB @ 1310/1550nm Singlemode OTDR w/ Light Source / Power Met