OFT-CWDM Series 4 Channel OTDR

OFT-CWDM Series 4 Channel OTDR

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Manufactured in the USA, the OFT-CWDM-SB and OFT-CWDM-LB are ruggedized, compact OTDRs that are available in a variety of wavelengths, with up to four wavelengths per unit. The standard wavelengths are: 1471, 1491, 1511, 1531nm (SB) and 1551, 1571, 1591, 1611nm (LB). Other wavelength combinations are available upon request.

The OFT-CWDM Series is water, dust and shock resistant, has onboard storage for 500 traces, video inspection capability and a USB port for easy data transfer. Manufactured, sold, serviced and supported in the USA, the OFTCWDM Series comes standard with FC/ST and SC connectors, Telcordia software and a 1-year manufacturer€™s warranty.

? Manufactured in the USA

? Water, Dust and Shock Resistant

? 32 dB Dynamic Range

? Video Inspection Capability

? USB Flash Drive Port and Mini USB/PC Port


Item / Model No. OFT-CWDM-SB | OFT-CWDM-LB
Wavelength Range 1471/1491/1511/1531nm (±3nm) | 1551/1571/1591/1611nm (±3nm)
Dynamic Range 32dB
Pulse Width 5 to 20,000 ns
Units of Measurement km, kf, mi
Event Dead Zone 1m
Attenuation Dead Zone 4m
Resolution .125 ~ 32m
Full Scale Distance Range ) 1-64km (MM) , 1-240km (SM
Typical Real-time Refresh


2 Hz
Group Index of Refraction


1.024 ~ 2.048
Linearity ± .05 dB/dB
Memory Capacity 500 Traces
Power Supply Universal AC/DC / Charger
Battery Rechargeable NiMH (>8 hrs. Operating Time)
Battery Capacity >8 hrs
Operating Temperature 14º F ~ 122º F (-10º C ~ 50º C)
Storage Temperature -4º F ~ 140º F (-20º C ~ 60º C)
Weight 2 lb (907 g)
Warranty Standard 1-Year Manufacturer Warranty

Ordering Information:

OFT-CWDM-SB | 1271 - 1411nm, 8 Wavelength W/VFL, LTS, Video Scope and Probe

OFT-CWDM-LB | 1471 - 1611nm, 8 Wavelength W/VFL, LTS, Video Scope and Probe


OFT-CWDM OTDR Product Spec Sheet