Fiber Comprehensive Tester K-310
The FTTH door-step box: OTDR, power meter, light source, VFL, event map, network cable test and a work lamp in one 5-inch tester.
Typical work: FTTH activation and repair visits — drop testing, power checks and in-home cable runs in one call; Last-mile and access-network maintenance for ISP and contractor crews; Event-map fault finding by installers who do not read OTDR traces every day; Live-fiber checks on short spans with the filtered builds.
Get a Quote WhatsApp UsNeutral stock in small lots, or private label made to your requirements. Prices on request — EXW factory pricing.
K-310 key features
- Seven functions in one box: OTDR, optical power meter, light source, visual fault locator, event map, network cable test and LED lighting — the whole FTTH checklist without swapping instruments
- An event map (optical eye) that draws the drop line's faults in plain view — the answer a new installer can read, with the full OTDR trace behind it when you want the detail
- Four OTDR builds at an honest 22/20 dB: single or dual wavelength, and filtered builds — including 1625 nm — that can test live fiber
- The cable test covers the other half of the install: wire sequence and length on the Ethernet run, with open circuits, short circuits and crossed pairs called out
- Built for the doorstep and the dark cabinet: 5-inch touch screen with gesture operation, a work lamp, live-signal protection on the OTDR, and a lithium battery past 10 hours
K-310 specifications
| Functions | OTDR, optical power meter, light source, visual fault locator, event map, network cable test (sequence and length), LED lighting |
|---|---|
| OTDR wavelengths | By build: 1310 or 1550 nm single-wavelength; 1310/1550 nm dual-wavelength; 1625 nm single-wavelength (filtered) |
| OTDR dynamic range | 22/20 dB; 20 dB on the 1625 nm build |
| Distance range | 0.5 to 160 km |
| Event dead zone | 2 m |
| Attenuation dead zone | 10 m |
| Pulse widths | 5 ns to 20 µs |
| Distance accuracy | ±(1 m + sampling resolution + distance × 0.005%) |
| Linearity | ±0.05 dB/dB |
| Fiber type | Single-mode |
| Display | 5-inch 800 × 480 capacitive touch screen |
| Optical connector | FC / SC / ST / LC universal |
| Storage | 4 GB or 8 GB |
| Optical power meter | Built-in: InGaAs, -60 to +6 dBm (grade A) or -50 to +26 dBm (grade B), 800–1700 nm, calibrated at 850/980/1300/1310/1490/1550/1625 nm |
| Light source | Built-in: 1310/1550 nm, output ≥ -7 dBm |
| Visual fault locator | Built-in, 650 nm, FC/UPC interface |
| Network cable test | Wire sequence and length; detects open circuit, short circuit and disordered (crossed) pairs |
| Battery | Lithium battery, >10 h continuous working |
| Dimensions | — |
| Weight | — |
How It Works — the whole doorstep visit in one box
Most FTTH faults live in the last hundred meters, and the K-310 is built for exactly that stretch. Start with the event map: it tests the drop and draws what it finds — connectors, splices, bends, breaks — as a plain diagram with distances, readable at a glance. When a fault needs proving, the same fiber gets a full OTDR trace at 1310/1550 nm; the power meter reads what actually arrives at the ONT, and the VFL puts a red glow on a visible break.
Then the job moves indoors, where the second half of 'no service' calls live: the network cable test checks the Ethernet run for sequence, length, open circuits, shorts and crossed pairs, and locates the fault distance. One instrument, charged once, covers the visit from the distribution point to the router — which is why this box, not a 45 dB trunk OTDR, is the right tool for activation and repair crews.
Where the K-310 works
FTTH activation and repair visits — drop testing, power checks and in-home cable runs in one call
Part of the Fusion Splicers & Connection range — see the specifications above for the figures that matter on this work.
Last-mile and access-network maintenance for ISP and contractor crews
Part of the Fusion Splicers & Connection range — see the specifications above for the figures that matter on this work.
Event-map fault finding by installers who do not read OTDR traces every day
Part of the Fusion Splicers & Connection range — see the specifications above for the figures that matter on this work.
Live-fiber checks on short spans with the filtered builds
Part of the Fusion Splicers & Connection range — see the specifications above for the figures that matter on this work.
K-310 components
- K-310 fiber comprehensive tester main unit
- AC/DC adapter
- 4 GB USB flash disk
- Calibration certificate
- Quick user manual
- FC optical connectors ×2
Documents for this model
Product Catalog 2026 — this model appears in our full-range catalog (PDF), published in the Downloads center.
User manual — if you need the manual for this model now, ask via the inquiry form below or on WhatsApp and we will send the available documents with your quote.
More fusion splicers & connection
Questions about the K-310
Can the K-310 carry our own brand?
Private labeling is made to your requirements and confirmed per order — labels with your logo, part numbers and barcodes on the tools, the inner boxes and the outer cartons, ready for your warehouse. The products most often labeled are the K-35 cleaver, the KS-1 Kevlar shears and the K-870 stripper.
Can we order a small lot, unbranded?
Yes. Neutral stock is held for the core range: small lots are welcome, you can mix models in one shipment, and restock as you sell. Prices are on request — EXW factory pricing.
Ask for a quote — K-310
Tell us the quantity, and whether you want it neutral or with your brand on it.