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 1471-1611nm +4 Additional Wavelengths of Choice, CWDM OTDR w/ VFL, LTS, Video Scope Capability (Probe Sold Separately)
FTE-7500A-CWDM-10 1431-1611nm 10 Wavelength CWDM OTDR w/ VFL, LTS, Video Scope Capability (Probe Sold Separately)
FTE-7500A-CWDM-OE 1271-1411nm, 8 Wavelength CWDM OTDR w/ VFL, LTS, Video Scope Capability (Probe Sold Separately)
FTE-7500A-CWDM-SCL 1471-1611nm 8 Wavelength CWDM OTDR w/ VFL, LTS, Video Scope Capability (Probe Sold Separately)
FTE-SCASE-LG Soft Case for FTE7500, FTE6000 and FTE8000 Series
VIS-300 Video Probe For FTE7000 and FTE7500-CWDM and FTE7500-DWDM Series
FTE-7500A-CWDM Specifications
Wavelength CWDM Wavelenghts (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 0.25-260km
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 USB Flash Drive
Power Supply / Charger Input 100-240VAC, 50-60Hz, 0.3A, Output 13.6V, 1.2A
Battery 8hr
Storage Temperature -20° to 60°C
Operating Temperature Range -10° to 40°C
Dimensions (w/out Rubber Boot) 8.62” L x 4.25” W x 2.375”
(219mm L x 108mm W x 60mm H)
Weight 2 lbs
Communications Ports USB and USB Flash Drive Ports
Connector Styles FC, ST, SC Interchangeable
Accessories Provided Universal Power Adapter w/ interchangeable mains, Interchangeable FC/ST and SC Adapters for optical port and FC, ST, SC, 1.25mm and 2.5mm universal adapters for power meter port, Software, Manual on CD and Protective Rubber Boot


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 As configured with OTDR wavelengths
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, Multimode
Wavelengths (Light Source Wavelengths are Limited by the OTDR Configuration)
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
Wavelength 650nm ±5nm
Laser Safety Class Class II FDA21 CFR1040.10 & 1040.11 IEC 825-1: 1993
Connector Type 2.5mm Universal
Output Power 1mW Max.

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