Why does VAEYI offer a six-in-one OTDR package?

There are many OTDR products on the market, including single-function OTDRs and OTDR+optical power meter combos. The VAEYI FA1000 integrates six functions: OTDR, stable light source, optical power meter, red light source, network cable testing, and data storage. Why six, and not four or eight? This article works backward from the installation and maintenance scenario to explain this product decision.

First, let's see what installation and maintenance engineers do every day.

A typical day in the life of an installation and maintenance engineer:

I received a work order this morning to install equipment in the residential area. After splicing the drop fiber optic cable to the home, I need to test the link connectivity—this requires a red light source. If the link is working, I need to perform an OTDR test to confirm the loss distribution—this also requires an OTDR. Next, I need to test if the optical modem's receiving power meets the standard—this requires an optical power meter. Is the optical power at the modem insufficient? I need to provide a stable light source from the central office and use an optical power meter at the user end—this requires a stable light source and an optical power meter working together.

I went to the office building this afternoon to fix the network cable. The cable wasn't working—I needed a network cable tester. After testing the cable, I discovered the fiber optic patch cord also had a problem—I needed a red light source and an OTDR.

We were working on repairing a fiber optic cable outage at night. We used an OTDR to pinpoint the break point, and then retested it after the repair—again, it was just OTDR and optical power meter work.

Throughout the day, I used the following tools: OTDR, stable light source, optical power meter, red light source, and network cable tester. All five functions were utilized.

II. The inconvenience of single-function devices

If each function required a separate instrument, an engineer would need to carry five with them when going out. The reality is:

1. I can't carry them . The five instruments weigh several kilograms in total. Riding an electric bike around the area and carrying them up six flights of stairs is physically demanding.

2. I'm so forgetful . Today I thought they only repair fiber optic cables and didn't bring a network cable tester, but it turned out to be a network cable problem on-site. What a wasted trip.

3. The switching is slow . After testing the OTDR, I unplug it to replace the optical power meter, then switch to the red light source. This repeated plugging and unplugging wastes time.

4. The charging is a mess . Five instruments, five charging cables. Type-C is manageable, but if the interfaces aren't standardized, it's even more of a headache.

These are not theoretical deductions, but the frictions that installation and maintenance engineers experience every day.

III. Why these six functions?

The six functions integrated into the FA1000 are not randomly pieced together; they cover the entire workflow of fiber optic installation and maintenance and structured cabling:

Connectivity check → Loss distribution test → End-to-end optical power verification → Copper cable test → Data archiving

Red light source for quick connectivity assessment (connected/unconnected), OTDR for link loss distribution and fault location, stable light source + optical power meter for precise end-to-end optical loss measurement, network cable testing covering copper cable portion, and data storage for unified archiving of all test results.

From coarse to fine, from fiber optic to copper cable, from testing to archiving, the entire chain is covered. Missing any link creates a gap: without a red light source, rapid troubleshooting is inconvenient; without an optical power meter, end-to-end loss cannot be measured; without network cable testing, structured cabling scenarios cannot be handled; without data storage, acceptance reports cannot be generated.

As for why not add more features—such as a spectrometer or optical return loss test—it's because these are laboratory-level tests and not needed on-site. The core of the six-in-one solution is "integrating only what the installation and maintenance scenario needs," not simply having more features.

IV. Synergy among the six functions

The "six-in-one" approach isn't simply about cramming six functions into one shell. There's a synergistic effect between the functions:

Red light source + OTDR synergy : The red light source quickly determines continuity; if continuity is found, the OTDR provides precise measurement. If continuity is lost, the OTDR directly locates the breakpoint. This two-step approach is more efficient than using the OTDR alone from scratch. The FA1000 red light source has a wavelength of 650±20nm, power ≥3mW, a 2.5mm universal interface compatible with SC/FC connectors, and offers selectable CW/1Hz/2Hz modulation modes.

Stable Light Source + Optical Power Meter Synergy : The FA1000's stable light source supports CW/270Hz/1kHz/2kHz modulation modes, with an output power ≥-5dBm. The optical power meter supports multiple wavelengths (850/1300/1310/1490/1550/1625/1650nm), a measurement range of -50dBm to +26dBm, an accuracy of ±5%, and frequency identification supports CW/270Hz/330Hz/1kHz/2kHz. In modulation mode, the optical power meter only identifies signals of the corresponding frequency, filtering out ambient light interference. This is particularly important for loss measurement in stray light environments such as computer rooms.

OTDR Dual-Wavelength Synergy : The FA1000A supports dual wavelengths of 1310nm and 1550nm. The 1310nm wavelength has a high attenuation coefficient (approximately 0.35dB/km), suitable for short to medium distances; the 1550nm wavelength has a low attenuation coefficient (approximately 0.22dB/km), suitable for long distances, and is sensitive to bending loss. Dual-wavelength comparison testing can distinguish between break points and bending points.

Unified data storage and archiving : OTDR data, optical power data, and network cable test data can all be stored in the FA1000 and exported uniformly. It supports SOR/PNG/PDF formats. PDF reports are directly attached to the acceptance document, while SOR files retain the original data for future reference.

V. Portability is not a secondary requirement.

One direct benefit of the six-in-one integration is portability. The FA1000 weighs 0.9kg, measures 185×116×45mm, and features a 4.3-inch capacitive touchscreen. It has a 4000mAh polymer lithium battery, charging in approximately 2 hours, supporting all-day outdoor operation. Operating temperature is -10°C to +50°C, humidity is 0~95% with no condensation, and altitude is ≤4000m.

What does 0.9kg mean? A bottle of mineral water weighs about 0.5kg, so the FA1000 is equivalent to less than two bottles of water. Installation and maintenance engineers carry it up stairs, ride bikes, and squeeze onto buses without feeling tired.

If you bring five single-function instruments, the weight will at least triple. Portability is not just a bonus, it's a necessity in installation and maintenance scenarios—engineers work on the move, so the lighter the equipment, the better.

VI. Network Cable Test: Why was this function added?

Some might think that adding a network cable for testing in an OTDR is inappropriate. However, installation and maintenance engineers actually work with a mix of fiber optic and copper cables.

After FTTH is installed in the home, a network cable runs between the optical modem and the user's router. If the network cable is faulty, the user cannot access the internet. When an engineer comes to check, the fiber optic cable is fine; the problem lies with the network cable, either broken or incorrectly wired. If there's no network cable testing function available, the engineer has to go back and get the necessary equipment.

The FA1000 network cable test supports RJ45 wiring sequence detection, cable length testing (up to 300m), and structured cabling continuity testing. While the functions are not complex, they save engineers time traveling back and forth. Nanjing Weiyi Technology integrated this function with a simple motivation: if an engineer can solve a problem in one trip, they shouldn't have to make two.

VII. The Six-in-One Product Philosophy

VAEYI's creation of a six-in-one OTDR reflects a product philosophy: don't let tools become a burden .

The core competency of an installation and maintenance engineer lies in judgment and operational experience, not in managing a bunch of devices. The six-in-one integration allows engineers to focus on test results and fault diagnosis, rather than switching back and forth between devices. Nanjing Weiyi Technology integrates six functions into the FA1000, essentially doing "subtraction"—reducing the number of devices, reducing operating steps, and minimizing learning costs.

Automatic OTDR mode offers one-click testing, while expert mode allows for customized parameters—this is also a subtraction: reducing the learning curve for beginners without compromising the operational precision of experienced users.

The integration of six technologies is not the end. Installation and maintenance scenarios are changing, and tools are evolving. But the idea of "reducing the amount of equipment engineers carry and the less they have to worry about" will never be outdated.