Terahertz Technologies Inc.Terahertz Technologies Inc.
(888) U.S.-OTDRS

The FTE7500A-CWDM-12 offers up to 12 CWDM Wavelengths in a Single OTDR. These OTDRs may be ordered with 8, 10 or even 12 CWDM wavelengths. Standard units include 1471-1611nm for 8 wavelengths and 1431-1611nm for 10 wavelengths or configure a 12 wavelength unit using the 1471-1611nm 8 wavelength unit and add 4 additional wavelengths of your choice. Test a fiber at 1, 2 or up to 12 wavelengths with the touch of just one button. The Fault Finder mode uses one button to scan a fiber under test, with the OTDR choosing the best parameters at the selected wavelength and displaying the event analysis.

The onboard Broadband Power Meter is calibrated at up to 12 CWDM wavelengths to match the OTDR configuration. The FTE7500A-CWDM may also be used as a CW light source. Select any of the configured wavelengths as a CW light source for commissioning or for loss test with the onboard Power Meter.

The CertSoft Software Suite, project reporting and documentation is fast and easy with the supplied CertSoft reporting software. Reports can include trace graph, schematic and table analysis, loss test table and connector image.

35 dB Dynamic Range
Express Help System
CW & Fiber Identifier Light Source
Video Scope With Pass/Fail Grading Zones
Integrated Power Meter
Bidirectional Trace Analysis with Certsoft
Full Auto, Construction and Expert Modes
Live Fiber Detection
Onboard Memory of ~4000 traces
CertSoft Report Software with .sor Capability
Dual Trace Capability
Ordering Information
FTE-7500A-CWDM-12 12 Wave CWDM OTDR, 1471 - 1611nm + 4 Configured W/VFL, LTS, Video Scope
FTE-7500A-CWDM-10 10 Wave CWDM OTDR, 1431 - 1611nm W/VFL, LTS, Video Scope
FTE-7500A-CWDM-8 8 Wave CWDM OTDR, 1471 - 1611nm W/VFL, LTS, Video Scope
VIS-300 Video Probe for FTE Series Fiber Optic Test Equipment (Sold Separately)
FTE-7500A-CWDM Specifications
Wavelength 1271nm-1611nm as configured +/-3nm
Dynamic Range 35dB
Pulse Width 5 - 20,000 ns
Units of Measurement km, kf, mi
Event Dead zone 1m
Attenuation Dead Zone 4m
Resolution .125 - 32m
Distance Uncertainty ±(0.75m + 0.005% x distance + sampling resolution)
Full Scale Distance Range 1-240km
Typical Real-time Refresh Rate 2 Hz
Group Index of Refraction (GIR) 1.024 - 2.048
Linearity ± .05 dB/dB
Memory Capacity ~500
Memory Type Internal and External Flash Drive
Power Supply / Charger Universal
Battery 8hr
Storage Temperature -20° to 60°C
Operating Temperature Range -10° to 50°C
Dimensions (w/out Rubber Boot) 7.75” L x 4.5” W x 2.25” H (197mm L x 114mm W x 57mm H) 
Weight 2 lbs
Communications Ports USB and USB Flash Drive Ports
Connector Styles FC, ST, SC Interchangeable
Accessories Provided Universal Power Adapter w/US, UK, Continental Europe, and Australian Plugs, Interchangeable FC and SC Adapters, Windows Compatible CertSoft Software, Rubber Boot and Manual on CD


Power Meter
Detector Type InGaAs
Connector Type Interchangeable - FC/ST/SC/1.25mm univ and 2.5mm univ.
Measurement Range +5 to -77dB (CATV - +25 to -57dB)
Calibrated Wavelengths CWDM Wavelengths, 1271-1611nm plus 850 and 1300nm
Units of Measurement dBm, dB
Resolution .01 dB
Power Measurement Uncertainty ±0.18 dB under reference conditions
± 0.25 dB from 0 to -65 dBm
± 0.35 dB from 0 to +5 dBm and from -65 to -77 dBm


CW Source
Fiber Type Single mode
Standard Wavelengths All Wavelengths Configured for OTDR Application ±3nm
Output Power 0 dBm
Laser Safety Classification Class I Safety Per FDA/CDRH and IEC-825-1 Regulation
Modulation Modes CW, 270 Hz, 1000 Hz, 2000 Hz


Visible Light Source
Emitter Type Laser Photodiode
Wavelength 650nm ±5nm
Connector Type 2.5mm Universal
Output Power 1mW Max.
Data Sheet
Fiber Optic Test Equipment Brochure
Software Download
V1 CertSoft Reporting Software
V2 Certsoft Reporting Software

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