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PON OTDR Series

Time：2026/10/28 21:10:36 Views：31

PON OTDR | XHT-M06 | Xihaitech

XHT-M06 · FIELD TEST INSTRUMENTS

PON OTDR Series

Filtered in-service PON OTDR for testing through splitters in live FTTH and 10G PON networks.

1 platform · 7 modules · up to 42 dB · in-service through 1:64 splitters

A PON OTDR uses a filtered, out-of-band pulse — 1625 nm for GPON/EPON, 1650 nm for XGS-PON/10G PON — to test through splitters on a live network without dropping subscribers, plus 1310/1550 nm for dark-fiber acceptance. Dynamic range — not the maximum selectable range — governs splitter penetration and reachable distance.

Handheld PON OTDR XHT-M06-PON6200

In-service testing through splitters

Filtered 1625/1650 out-of-band ports test through up to 1:64 splitters on a live network with no subscriber outage.

0.5 m ultra-short event dead zone

Resolves 3 m patch cords and densely spaced connectors that longer-dead-zone OTDRs merge into one event.

Live-fiber detection & APD protection

Active traffic detection warns of live fiber and protects the APD detector, preventing damage and saturated traces.

Multi-wavelength test & auto diagnosis

One-tap test acquires all wavelengths together and auto-analyzes splitter, splice, bend and break events on an event map.

All-in-one field platform

OTDR, OPM, OLS, VFL, event map, loss test, connector inspection (optional), Ethernet (Ping/PPPoE) and remote test in one unit.

SOR batch workflow & smartphone app

Native SOR batch processing with auto-save; wireless app control, data sharing and report printing.

Module Selection Guide

All modules are G.652 single-mode. Choose by (1) offline acceptance vs in-service maintenance, (2) PON generation (GPON/EPON → 1625; XGS-PON/10G PON → 1650), and (3) required dynamic range. Filter isolation is > 40 dB on every live port.

Module	Wavelengths & filter	Dynamic range	Best-fit application
DUAL-WAVELENGTH OFFLINE — DARK FIBER ACCEPTANCE
PD1	1310/1550 nm ±20, unfiltered (offline)	37/35 dB	Dark/tier-down fiber and access links; standard dual-wavelength loss certification; entry configuration
LIVE 1625 nm — GPON / EPON (HIGH-PASS >1595 nm)
PS1	1625 nm ±20, high-pass >1595 nm (live)	38 dB	Dedicated in-service maintenance of GPON/EPON (1310/1490/1550); single out-of-band live port
PT1	1310/1550 + 1625, high-pass >1595 nm	38/36/36 dB	All-in-one: dark-fiber acceptance plus GPON/EPON live maintenance; standard dynamic range
PT2	1310/1550 + 1625, high-pass >1595 nm	40/38/38 dB	Acceptance plus GPON/EPON live maintenance; higher range for higher split / higher loss
PT3	1310/1550 + 1625, high-pass >1595 nm	42/40/40 dB	Highest dynamic range for deep GPON splits, high-loss links and metro P2P
LIVE 1650 nm — XGS-PON / 10G PON (BAND-PASS 1650±7 nm)
PS2	1650 nm ±5, band-pass 1650±7 nm (live)	38 dB	Dedicated in-service maintenance of XGS-PON/10G PON, avoiding the 1577 nm downstream band
PT4	1310/1550 + 1650, band-pass 1650±7 nm	38/36/36 dB	Acceptance plus 10G PON live maintenance; standard dynamic range

Filter isolation > 40 dB (1270–1585 nm for the 1625 high-pass; 1650±7 nm for the band-pass). Dynamic range figures are listed per wavelength in the order printed on the unit (1310/1550/live). In-service splitter penetration up to 1:64 under standard splitter loss.

Fiber type	G.652 single-mode
Wavelength modules	PD1, PS1, PS2, PT1, PT2, PT3, PT4 (see Module Selection Guide)
Live filter	1625 nm: high-pass >1595 nm; 1650 nm: band-pass 1650±7 nm; isolation > 40 dB
Maximum dynamic range	Up to 42/40/40 dB (PT3); 37–40 dB across other modules
In-service splitter penetration	Up to 1:64 through passive splitters (standard splitter loss)
Event dead zone	0.5 m (3 ns pulse, reflectance −35 to −55 dB)
Attenuation dead zone	3.5 m (3 ns pulse, reflectance −55 dB at 1310 nm)
PON dead zone	30 m
Distance range	100 m / 500 m / 1.25 / 2.5 / 5 / 10 / 20 / 40 / 80 / 125 / 260 / 420 km
Pulse widths	3 ns – 20 µs (3/5/10/20/30/50/80/100/200/300/500/800 ns, 1/2/3/5/8/10/20 µs)
Distance accuracy	± (0.75 m + sampling interval + 0.0025% × distance); excludes refractive-index uncertainty
Sampling points / resolution	≥ 256,000 / 0.015 m – 16 m
Loss accuracy	0.03 dB/dB
Loss resolution / threshold	0.001 dB / 0.01 dB
Reflection accuracy	± 2 dB
Loss measurement	4-point / 5-point method
File format	SOR standard trace
Real-time refresh	4 Hz
Laser safety class	Class II
Optical connector	FC/UPC standard (SC/ST interchangeable); FC/APC on request
Optical power meter	800–1700 nm; −50 to +26 dBm / −70 to +6 dBm; ±5%; calibrated 850/980/1300/1310/1490/1550/1625/1650 nm; FC/SC/ST universal adapter
Stable light source	FP-LD, same wavelengths as OTDR; ≥ −5 dBm (single-mode); CW/270/1k/2k Hz; ±0.05 dB/15 min
Visual fault locator	650 nm ±20 nm; ≥ 10 mW; CW/1 Hz/2 Hz
Ethernet / copper test	Ping / PPPoE, cable length, wire map and tone tracing up to 300 m
End-face inspection	Probe-based connector end-face inspection (probe sold separately)
Smartphone app	Bluetooth/Wi-Fi wireless control, data sharing and test-report printing
Display	7 in capacitive touch color LCD, 800 × 480
Data storage	Internal 2 GB (≥ 200,000 traces); external storage up to 64 GB
Data interfaces	USB-A, USB Type-C, RJ45 LAN 10/100 Mbit/s
Power supply	3.7 V / 10,400 mAh Li-ion; Type-C adapter (5V/3A, 9V/2A, 12V/1.5A); power-bank supported
Integrated functions	OTDR, power meter, VFL, light source, event map, loss test, end-face inspection (optional), Ethernet test, remote test, file management
Dimensions	215 mm (W) × 160 mm (H) × 50 mm (D)
Weight	≤ 1.2 kg
Operating / storage temperature	−10 to +50 °C / −40 to +70 °C; 0–95% RH non-condensing
MOQ	1 pc
Reference lead time	7 days

FAQ

Q1. Why does a PON OTDR use 1625 or 1650 nm? These are filtered out-of-band wavelengths. A built-in filter (>40 dB isolation) rejects the live traffic while the OTDR pulse passes through the splitter, so faults can be located on a live network without affecting other subscribers. Unfiltered 1310/1550 wavelengths must only be used on dark fiber.

Q2. Which live wavelength do I need — 1625 or 1650? 1625 nm serves GPON/EPON (1310/1490/1550). 1650 nm is required for XGS-PON/10G PON, because it sits clear of the 1577 nm downstream band. Confirm the PON generation before ordering.

Q3. Which module should I order? PD1 for acceptance-only and PS1/PS2 for dedicated live maintenance; the combined PT modules do both. For GPON/EPON, PS1 is the single 1625 port and PT1/PT2/PT3 combine 1310/1550 with 1625 at 38/36/36, 40/38/38 and 42/40/40 dB (PT3 is the highest-range flagship). For XGS-PON/10G PON, PS2 is the single 1650 port and PT4 combines 1310/1550 with 1650 at 38/36/36 dB.

Q4. What splitter ratio can it test through? Up to 1:64 in-service under standard splitter loss.

Q5. How does this differ from the handheld XHT-M05 OTDR? XHT-M05 is a 20–26 dB pocket/access tool for last-mile fault finding and cannot test through a live splitter. XHT-M06 is a filtered PON platform (up to 42 dB) that tests in-service through splitters; the two are complementary, not interchangeable.

Q6. MOQ, lead time and accessories? MOQ 1; reference lead time 7 days. FC/APC connectors, the inspection probe, Ethernet test leads and bulk orders are arranged on request. Each unit ships with the main unit (battery included), AC/DC adapter, USB drive, data cable, SC adaptor, certificate, cleaning wipes, strap and carry bag.

Ordering

• Part number: XHT-M06-PON6200-[PD1 / PS1 / PS2 / PT1 / PT2 / PT3 / PT4].
• Orders are confirmed against the PON generation, module, splitter ratio and connector type before packing; live wavelength capability is verified against the network conditions.

To recommend the correct PON OTDR: tell us the PON generation (GPON/EPON vs XGS-PON/10G PON), the maximum splitter ratio and link loss, whether offline acceptance at 1310/1550 is also required, and whether Ethernet testing is needed.