The NOYES CS260-20 Contractor Series Metro/Access OTDR from AFL is a dual-wavelength, 1310/1550 nm OTDR for troubleshooting point-to-point metro/access optical networks up to 60 km (40 miles) in length.

The CS260-20 provides extremely short event and attenuation dead zones (0.8 and 3.5 m, respectively), enabling closely spaced events to be individually resolved and measured in short access networks. To further aid in locating faults within access points, splice closures or indoor cabling, the CS260-20 includes an integrated Visual Fault Locator (VFL, a visible red laser). Intended for single-mode optical network installation verification and troubleshooting, the CS260-20 is extremely easy to use. It provides fully automatic OTDR parameter selection, automatic event table generation and end-to-end length, loss and optical return loss (ORL) summary. For expert users, the CS260-20 also allows full control of OTDR parameters (range, pulse width, averaging time, etc.)

• 28/28 dB dynamic range @ 1310/1550 nm
• 0.8 m event dead zone, 3.5 m attenuation dead zone
• Full Auto, Expert and Real Time OTDR modes
• Internal storage (>1000 OTDR traces, standard .SOR file format)
• Transfer test results to PC via USB cable
• Rugged, hand-held and lightweight
• High-contrast display: clear and bright in any lighting condition, including direct sunlight
• >13-hour operation, fast charge, Li-Ion battery
• Instant On; ready to test in <5 sec
• Easy to learn and use.

• Verify metro/access fiber networks: measure loss and
reflectance of individual splices and connectors, as well as endto-end
loss and optical return loss.
• Troubleshoot point-to-point networks: locate fiber breaks
and source(s) of excess loss or reflectance in metro/access
networks at both 1310 and 1550 nm.
• Visibly trace fibers or locate fiber bends or breaks:
inject visible red light into fiber using integrated Visual Fault
Locator (VFL). Pinpoint location of faults by detecting red light
emanating from macrobends or fiber breaks.