8100-Series OTDR EVO E8126D 1310/1550 nm OTDR Module for OneAdvisor 800 Fiber

Dual-wavelength 1310/1550 nm 8100D OTDR EVO module for the OneAdvisor 800 Fiber platform with up to 50 dB dynamic range and integrated source and power meter.

Weight: approx. 500 g (1.1 lb)
Dimensions (W x H x D): 213 x 124 x 32 mm (8.38 x 4.88 x 1.26 in)
Laser safety class (21 CFR): Class 1
Distance units: Kilometer, meter, feet, and miles

Datasheet

Overview

The VIAVI E8126D is the 1310/1550 nm dual-wavelength member of the 8100-Series OTDR EVO (8100D) module family for the OneAdvisor 800 Fiber platform. The 8100D modules are designed for testing single-mode standard and hollow core fibers across metro, long-haul and ultra-long-haul networks during installation, turn-up and maintenance, and they can be connected anywhere on the fiber for commissioning, network upgrades and troubleshooting.

The module combines an OTDR, a continuous-wave light source and a broadband power meter on a single optical port. Automatic traffic detection checks for live signals before an acquisition starts, which reduces the risk of interfering with traffic or damaging an optical transmitter. The dead-zone performance allows full characterization of adjacent elements on a link a few meters apart, and the OTDR is optimized for PON testing through splitters up to 1x128.

Software and analysis

Smart Link Mapper (SLM) presents the trace as an icon-based link map to reduce interpretation errors without extending test time. Standard testing features include automatic macrobend detection, a summary results table with pass/fail analysis and onboard FastReport report generation. A hollow core fiber mode characterizes the solid-core to hollow-core transition and provides dynamic range figures specific to hollow core fiber.

Key Features

Up to 50 dB dynamic range and 256,000 acquisition points
≤ 65 cm event dead zone and 2.5 m attenuation dead zone
Integrated CW light source and broadband power meter on the OTDR port (single-mode wavelengths)
PON optimized to test through a 1x128 splitter
Dual-wavelength 1310/1550 nm module in the 8100D family
Single connector port for 1310 and 1550 nm wavelengths
Instantaneous automatic traffic detection before an OTDR test
Smart Link Mapper (SLM) icon-based results to eliminate OTDR interpretation errors
Automatic macrobend detection
Summary results table with pass/fail analysis
FastReport onboard report generation
Characterization of single-mode standard and hollow core fibers

Specifications

General

Weight	approx. 500 g (1.1 lb)
Dimensions (W x H x D)	213 x 124 x 32 mm (8.38 x 4.88 x 1.26 in)
Laser safety class (21 CFR)	Class 1
Distance units	Kilometer, meter, feet, and miles
Group index range	1.00000 to 1.70000 in 0.00001 steps
Number of data points	Up to 256,000 data points
Platform	OneAdvisor 800 Fiber

Distance Measurements

Mode	Automatic or dual cursor
Display range	0.1 - 400 km Single-mode
Display resolution	1 cm
Cursor resolution	From 1 cm
Sampling resolution	From 4 cm
Accuracy	± (0.75 m + sampling resolution + 0.001% x distance) Single-mode; excluding group index uncertainties

Attenuation Measurements

Mode	Automatic, manual, 2-point, 5-point, and LSA
Display resolution	0.001 dB
Linearity	±0.03 dB/dB Single-mode
Threshold	0.01 to 4.99 dB in 0.01 dB steps

Reflectance/ORL Measurements

Mode	Automatic or manual
Reflectance accuracy	±2 dB
Display resolution	0.01 dB
Threshold	-11 to -99 dB in 1 dB steps

OTDR (8100D)

Wavelengths E8126D	1310/1550 nm E8126D is the 1310/1550 nm OTDR module (ordering information)
Central wavelength	1310 ±20 nm; 1550 ±20 nm; 1625 +15/-5 nm; 1650 ±1 nm Laser at 25°C and measured at 10 µs; 8100D family figures, E8126D provides 1310 and 1550 nm
Dynamic range	50/50/50/48 dB Per wavelength 1310/1550/1625/1650 nm. One-way difference between the extrapolated backscattering level at the start of the fiber and the RMS (SNR=1) noise level, after 3 minutes averaging using the largest pulse width
Pulse width	2 ns to 20 µs
Event dead zone	0.5 m Measured at ±1.5 dB below the peak of an unsaturated reflective event using the shortest pulse width
Attenuation dead zone	2.5 m Measured ±0.5 dB from the linear regression using an FC/UPC reflectance and the shortest pulse width
Splitter attenuation dead zone	15 m after a 15 dB splitter loss

OTDR (Hollow Core Fiber)

Dynamic range	35/35/35/33 dB Per wavelength 1310/1550/1625/1650 nm; same measurement condition as the solid core dynamic range
Solid core to hollow core transition attenuation dead zone	15 m after a 15 dB Rayleigh backscattering difference Measured on a none reflective transition at 100 ns, after a 15 dB Rayleigh backscattering difference between solid core fiber and hollow core fiber

Power Meter

Calibrated wavelengths	1310/1490/1550/1625 nm Power meter available on the E8126D (not available on single-wavelength and 1550/1625 nm versions)
Power range	-5 to -55 dBm
Accuracy	±0.5 dB at -30 dBm At calibrated wavelengths

Continuous Wave Light Source

Wavelengths	1310/1550/1625 nm At calibrated wavelengths; light source available on the E8126D (not available on single-wavelength and 1550/1625 nm versions)
Output power	0 dBm
Stability	±0.1 dB at 25°C over 1 hour
Operating modes	270 Hz, 330 Hz, 1 kHz, 2 kHz, TWINtest Subtract 3 dB when in modulation mode (270 Hz/330 Hz/1 kHz/2 kHz)

Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.

Applications

Metro, long-haul and ultra-long-haul fiber network characterization
Access network characterization
Advanced FTTH PON network qualification and troubleshooting
Fiber monitoring in and out of service
Fiber installation/deployment certification and troubleshooting for submarine cable networks
Hollow core fiber test and certification for high-speed networks and data center interconnects
Upgrading core fiber networks up to 800G

Options & Accessories

Option	Description
EUNIPCFC	Universal optical connector, straight, FC — Straight universal optical connector
EUNIPCSC	Universal optical connector, straight, SC — Straight universal optical connector
EUNIPCST	Universal optical connector, straight, ST — Straight universal optical connector
EUNIPCDIN	Universal optical connector, straight, DIN — Straight universal optical connector
EUNIAPCFC	Universal optical connector, 8° angled, FC — 8° angled universal optical connector
EUNIAPCSC	Universal optical connector, 8° angled, SC — 8° angled universal optical connector
EUNIAPCDIN	Universal optical connector, 8° angled, DIN — 8° angled universal optical connector
ELCSMXX-YY-ZZ	Launch and receive cable, single-mode — XX: fiber length in meters (20, 25, 100, 150, 500, 1000, 2000, 2200); YY: connector A type (SCA, LC, MPO); ZZ: connector B type (SC, SCA, LC, MPO). MPO versions available in 20 m or 25 m only.