OTDR K-610
A 7-inch tablet OTDR platform for trunk and metro work — dual-wavelength builds climbing to 45/43 dB and 240 km, plus 1625 nm builds that watch live fiber.
Typical work: Trunk and metro acceptance testing — the high builds reach 240 km spans; Fault location and maintenance on long-haul and regional single-mode plant; Live-fiber monitoring and in-service fault finding with the 1625 nm builds; Network opening (fast mode) and routine maintenance (accurate mode) by carrier and contractor crews.
Get a Quote WhatsApp UsNeutral stock in small lots, or private label made to your requirements. Prices on request — EXW factory pricing.
K-610 key features
- Ten builds, one platform: seven dual-wavelength 1310/1550 nm builds from 24/22 dB to 45/43 dB, and three triple-wavelength builds with a 1625 nm channel for live-fiber monitoring
- Tablet working: a 7-inch capacitive touch screen with gesture zoom on the trace, one-key testing, and fast and accurate modes for opening and maintaining networks
- Short dead zones on the high builds — event dead zone down to 0.8 m and attenuation dead zone down to 4.5 m, so close-spaced events on dense plant still separate
- Dual-wavelength traces show macrobends directly; live-signal alarm protects the optics, and the module self-test reports the OTDR's own health
- Options fitted to order: an optical power meter (two detector grades) and a 1310/1550 nm light source on the dual-wavelength builds — say so with your inquiry and we build it in
K-610 specifications
| Wavelengths | 1310/1550 nm dual-wavelength builds; 1310/1550/1625 nm triple-wavelength builds — see the model table |
|---|---|
| Dynamic range | 24/22 to 45/43 dB (dual-wavelength); 32/30/30 to 40/38/38 dB (triple-wavelength) |
| Distance range | 0.5 to 160 km or 0.5 to 240 km, by build |
| Event dead zone | 0.8 to 2 m, by build |
| Attenuation dead zone | 4.5 to 10 m, by build |
| 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 | 7-inch capacitive touch screen |
| Optical connector | FC / SC / ST universal |
| Storage | 10,000 traces; USB expansion supported |
| Visual fault locator | Built-in, 650 nm, FC/UPC interface |
| Optical power meter | Optional on dual-wavelength builds: InGaAs, -60 to +16 dBm (grade A) or -50 to +26 dBm (grade B), 800–1700 nm; not fitted on the 1625 nm builds |
| Light source | Optional: 1310/1550 nm, output ≥ -7 dBm, shares the OTDR interface |
| Battery | Lithium battery, >10 h continuous working |
| Dimensions | 210 × 160 × 45 mm |
| Weight | 0.98 kg |
How It Works — one platform, specified by span
An OTDR launches pulses down the fiber and reads the returning reflections and backscatter as a trace: distance along the bottom, loss down the side, every splice, connector and break placed on the line. What decides whether a given OTDR can do your job is dynamic range — how much loss budget it can see through — and that is what the K-610's build table is for: 24/22 dB opens access networks all day, the 40 dB class and above accepts and fault-finds trunk spans out to 240 km.
The 1625 nm builds exist for fiber that is already carrying traffic. Testing a live line at the working wavelengths would disturb it and be swamped by it; the filtered 1625 nm channel sits clear of the 1310/1550 traffic, so the line can be watched and fault-found in service. Whichever build you choose, the working is the same tablet routine: pick the mode, run the trace, pinch to zoom into an event, and save it against the line's records.
Choose your K-610 model
One platform, several builds. Pick the wavelength set and dynamic range for your network, and quote the model code with your inquiry — we confirm the build and lead time with your quote.
| Model | Wavelengths | Fiber | Dynamic range | VFL |
|---|---|---|---|---|
| 1310/1550 nm dual-wavelength builds | ||||
| K-610-S1 | 1310/1550 nm | Single-mode | 24/22 dB | Built-in |
| K-610-S2 | 1310/1550 nm | Single-mode | 32/30 dB | Built-in |
| K-610-S3 | 1310/1550 nm | Single-mode | 35/33 dB | Built-in |
| K-610-S4 | 1310/1550 nm | Single-mode | 37/35 dB | Built-in |
| K-610-S5 | 1310/1550 nm | Single-mode | 40/38 dB | Built-in |
| K-610-S6 | 1310/1550 nm | Single-mode | 42/40 dB | Built-in |
| K-610-S7 | 1310/1550 nm | Single-mode | 45/43 dB | Built-in |
| 1310/1550/1625 nm builds — the 1625 nm channel watches live fiber | ||||
| K-610-L1 | 1310/1550/1625 nm | Single-mode | 32/30/30 dB | Built-in |
| K-610-L2 | 1310/1550/1625 nm | Single-mode | 35/33/32 dB | Built-in |
| K-610-L3 | 1310/1550/1625 nm | Single-mode | 40/38/38 dB | Built-in |
Where the K-610 works
Trunk and metro acceptance testing — the high builds reach 240 km spans
Part of the Fusion Splicers & Connection range — see the specifications above for the figures that matter on this work.
Fault location and maintenance on long-haul and regional single-mode plant
Part of the Fusion Splicers & Connection range — see the specifications above for the figures that matter on this work.
Live-fiber monitoring and in-service fault finding with the 1625 nm builds
Part of the Fusion Splicers & Connection range — see the specifications above for the figures that matter on this work.
Network opening (fast mode) and routine maintenance (accurate mode) by carrier and contractor crews
Part of the Fusion Splicers & Connection range — see the specifications above for the figures that matter on this work.
K-610 components
- K-610 OTDR 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-610
Can the K-610 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-610
Tell us the quantity, and whether you want it neutral or with your brand on it.