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Home > FirstFiber Technologies OTDR Specification & Model Selection

FirstFiber Technologies OTDR Specification & Model Selection

FirstFiber Technologies OTDR Specification & Model Selection Questionnaire

Welcome! To help you pinpoint the exact OTDR (Optical Time Domain Reflectometer) specification and model that fits your engineering and testing needs, please answer the following questions based on your actual work scenarios. Once submitted, our technical experts will generate a tailored configuration recommendation for you.
What type of optical fiber do you primarily need to test?*
Single-mode Fiber (SM)
Multi-mode Fiber (MM)
Both types are required (Dual SM & MM Combo)
Which specific test wavelengths do you require?*
850nm / 1300nm —— Standard wavelengths for Multi-mode fiber testing.
1310nm / 1550nm —— The most standard and core wavelengths for Single-mode fiber testing.
1625nm or 1650nm (with built-in filter) —— Used for "live/in-service" fiber testing.
I'm not sure, please recommend based on my application scenarios.
Which of the following is your primary application scenario?*
FTTH / PON Access Network (Residential broadband deployment, drop cable construction, and maintenance)
Metro Network / Enterprise Private Network (Cross-district networks, large campus networks, mobile backhaul)
Backbone / Long-Haul Trunk (Cross-province/cross-city long-distance power/telecom fiber cables)
Data Center Interconnect (DCI) (High-speed, ultra-short distance high-density patch cord testing)
R&D Lab / Factory Production Line QA
What is the maximum length of a "single fiber link" you need to measure?*
This parameter directly determines the core metric of the OTDR—the Dynamic Range in dB
Ultra-short: Within 1 km (Data centers, intra-office patch cords, indoor wiring)
Short distance: 1 to 20 km (Standard FTTH, residential access layers)
Medium distance: 20 to 80 km (Metro networks, inter-city trunk lines)
Long distance: 80 to 130 km (Provincial/state backbone networks)
Ultra-long distance: Above 130 km (Ultra-long haul engineering, submarine cables, etc.)
Are there any optical splitters in your test link?*
plitters introduce massive optical attenuation; standard OTDRs cannot penetrate high-ratio splitters
No splitters
Yes, but small splitter ratios (e.g., 1:4 or 1:8 splitters)
Yes, high splitter ratios that need to be penetrated (e.g., 1:32 or 1:64)
Unsure if there are splitters
Do you need to perform "Live / In-Service Testing"?*
Testing while the fiber is active with active traffic, without interrupting the users' internet/communication
No, all tests will be done on dark fiber (off-line status)
Yes, definitely! Live testing is required
Occasionally, but it's not a hard requirement
What type of optical fiber connectors do you encounter most frequently?*
FC / UPC (Round connector, blue flat-face)
FC / APC (Round connector, green angled-face)
SC / UPC (Square connector, blue flat-face)
SC / APC (Square connector, green angled-face)
LC / UPC (Small form-factor square connector, common in high-density data center panels)
LC / APC (Small form-factor square connector, common in high-density data center panels)
Other interfaces / Unsure
Besides the OTDR test function, would you like the device to integrate any of the following built-in tools?*
OPM (Optical Power Meter) —— For measuring absolute optical power and loss
VFL (Visual Fault Locator) —— Emits a visible red laser to visually track breaks and macro-bends
OLS (Optical Light Source) —— Works with an OPM for dual-ended loss testing
FIP (Fiber Inspection Probe Support) —— To check if connector end-faces are dirty or damaged
—— Eliminates the need to interpret complex trace waveforms by showing a simple road-map style diagram with fault icons. Highly recommended for beginners.
What style of equipment form factor and operation do you prefer?*
Handheld / Pocket Size
Traditional Portable Benchtop
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