PON OTDR K-800PON — Smart Link map: splitters and events in order — Smart Link map: splitters and events in order

Fiber Test Equipment · K-800PON

PON OTDR K-800PON

A PON network comprehensive tester for live FTTx work: a 1625 nm in-service OTDR with 44 dB of dynamic range that shoots through a 1×128 splitter, one-click Smart Link maps, and a power meter, light source, VFL and fiber inspection in the same rugged handheld.

1310/1550 nm and 1625 nm (±20 nm)34/32 dB (1310/1550 nm); 44 dB (1625 nm)1.2 m (1310/1550 nm); 0.8 m (1625 nm)6 m (1310/1550 nm); 3.5 m (1625 nm)

Typical work: In-service PON troubleshooting at 1625 nm without interrupting subscribers; FTTH acceptance testing through 1×64 and 1×128 splitters; Locating breaks, bad splices and macrobends on feeder and distribution fiber; Verifying splitter ports and branch lengths from the OLT end; Connector end-face inspection before sign-off, with the optional probe.

Get a Quote Add to Kit WhatsApp Us

Going into a kit? Add this tool to your kit list and quote the whole set at once — or take it on its own, neutral or with your label.

Neutral stock in small lots, or private label made to your requirements. Prices on request — EXW factory pricing.

Features

K-800PON key features

Live-fiber OTDR at 1625 nm: the filtered in-service wavelength tests a working PON without taking subscribers down, and 44 dB of dynamic range reaches the far end of long, heavily split networks
Through a 1×128 splitter: enough range and resolution to verify the whole branch — feeder, splitter and drops — from one end, so acceptance testing does not need an access visit at every home
Smart Link one-click analysis: no pulse-width or range setup — press test and the link comes back as a map, events in order with the splitters identified in FTTx mode, each event with its location and loss
1310/1550 nm testing as well: standard OTDR wavelengths for offline plant, plus a built-in 1310/1550 nm power meter for in-service troubleshooting on single-mode fiber
Four more tools on board: a 1310/1550 nm light source (CW / 270 Hz / 1 kHz / 2 kHz), a 650 nm visual fault locator good for 3 km, storage for more than 10,000 traces on SD card, and an optional 400× fiber inspection probe for connector end faces
Built for the field: dual-color molded housing with armored corners shrugs off cabinet and pole work, and the lithium battery runs at least 8 hours of continuous testing

Specifications

K-800PON specifications

Test wavelengths	1310/1550 nm and 1625 nm (±20 nm)
Dynamic range	34/32 dB (1310/1550 nm); 44 dB (1625 nm)
Event dead zone	1.2 m (1310/1550 nm); 0.8 m (1625 nm)
Attenuation dead zone	6 m (1310/1550 nm); 3.5 m (1625 nm)
Measurement range	0.3–200 km
Linearity	±0.05 dB/dB
Loss threshold / resolution	0.05 dB / 0.001 dB
Sampling resolution	0.125–8 m
Ranging accuracy	±(0.75 m + 2.5×10⁻⁵ × distance + sampling interval)
Real-time refresh	1 s (typical)
Data storage	SD card (≥8 GB), more than 10,000 traces
Light source	1310/1550 nm, CW / 270 Hz / 1 kHz / 2 kHz modulation
Power meter	1310/1550 nm calibrated, −40 to 0 dBm, ±0.02 dBm accuracy
Visual fault locator	650 nm, up to 3 km
Fiber inspection (optional probe)	400× magnification, 0.5 µm resolution
Battery	Lithium, ≥8 hours continuous work
Operating temperature	−10 °C to +50 °C
Dimensions	263 × 75 × 203 mm
Weight	1.784 kg

How It Works

Why PON testing needs its own OTDR

A PON is not a point-to-point link: one feeder fiber fans out through splitters to dozens of homes, and each splitter stage costs 10 to 20 dB of loss before the drop fiber even starts. A general-purpose OTDR runs out of dynamic range, or drowns the branch events in its dead zones. The K-800PON pairs 44 dB of range with a 0.8 m event dead zone at 1625 nm, so individual events stay visible after one or two splitter stages.

1625 nm matters because it is the maintenance wavelength: live PON traffic runs at other wavelengths, so a filtered 1625 nm test signal can be injected into a working network and measured without disturbing it. Smart Link then does the interpretation — one click measures the link and draws it as a map of splitters, splices and faults, ready to hand to the customer or file with the acceptance report.

Same Category

Compare the fiber test equipment range

Every product in this category, side by side on the figures that decide the choice. Blank cells mean the figure is not stated in our current data — ask us and we will confirm it for the model you mean.

	K-800PON	K-V30	K-350	K-340	K-535	K-527	K-528	K-V10	K-PV1
Wavelength	—	650 nm (visible red)	—	—	—	—	—	650 ± 10 nm (visible red)	—
Wavelengths	—	—	—	—	—	—	1310/1550 nm (single-mode build); 850/1300 nm (multimode build)	—	—
Dynamic range	34/32 dB (1310/1550 nm); 44 dB (1625 nm)	—	—	—	—	—	—	—	—
Measurement range	0.3–200 km	—	—	—	-70 to +6 dBm or -50 to +26 dBm (two versions)	-70 to +10 dBm	—	—	-70 to +10 dBm
Dimensions	263 × 75 × 203 mm	165 × 26 mm	196 × 30.5 × 27 mm	219 × 45 × 28 mm	118 × 72 × 32 mm	—	—	175 × 26 × 26 mm	—
Weight	1.784 kg	50 g	200 g	235 g	150 g	—	250 g	53 g (excluding batteries)	—

Applications