8100-Series OTDR EVO E81162D In-Service 1625 nm OTDR Module

In-service 1625 nm OTDR module of the VIAVI 8100-Series OTDR EVO family for the OneAdvisor 800 Fiber platform.

Central wavelength: 1625 +15/–5 nm
Dynamic range: 50/50/50/48 dB
Pulse width: 2 ns to 20 µs
Event dead zone: 0.5 m

Datasheet

Overview

The VIAVI E81162D is the in-service 1625 nm OTDR module of the 8100-Series OTDR EVO family (8100D), designed for the OneAdvisor 800 Fiber platform. The 8100D module is intended for testing single-mode standard and hollow-core fibers across metro, long-haul and ultra-long-haul infrastructures during installation, turn-up and maintenance.

The OTDR EVO family can be connected anywhere on the fiber to characterize single-mode and hollow core fibers for commissioning, network upgrades and troubleshooting. Dead zone performance allows full characterization of element events on a fiber link that are 2 meters apart, and automatic traffic detection avoids the risk of live signal interference or damage to the optical transmitter when an OTDR test is performed on an in-service fiber.

Smart Link Mapper (SLM) reduces OTDR interpretation errors without compromising test time. Standard testing features include automatic macrobend detection, a summary results table with pass/fail analysis and FastReport onboard report generation.

The E81162D is a 1625 nm-only version; according to the manufacturer's ordering information, the integrated light source and power meter are not available on this version.

Key Features

Up to 50 dB dynamic range and 256,000 acquisition points
In-service 1625 nm OTDR wavelength
≤ 65 cm Event Dead Zone and 2.5 m Attenuation Dead Zone
Full characterization of element events on a fiber link 2 meters apart
Instantaneous automatic traffic detection to avoid live signal interference or optical transmitter damage
PON optimized to test up to 1x128 splitter type
Smart Link Mapper (SLM) eliminates OTDR interpretation errors without compromising test time
Reduces event loss measurement uncertainty and improves measurement repeatability
Automatic macrobend detection
Summary results table with pass/fail analysis
FastReport onboard report generation
Module for the OneAdvisor 800 Fiber platform

Specifications

OTDR

Central wavelength E81162D	1625 +15/–5 nm Laser at 25°C and measured at 10 µs
Dynamic range	50/50/50/48 dB 8100D values for 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; web page states ≤ 65 cm
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 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
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

Distance Measurements

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

Attenuation Measurements

Mode	Automatic, manual, 2-point, 5-point, and LSA
Display resolution	0.001 dB
Linearity	Single-mode: ±0.03 dB/dB
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

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
Specification conditions	Typical at 25°C
Platform	OneAdvisor 800 Fiber platform

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
EUNIPCSC	Universal optical connector, straight, SC
EUNIPCST	Universal optical connector, straight, ST
EUNIPCDIN	Universal optical connector, straight, DIN
EUNIAPCFC	Universal optical connector, 8° angled, FC
EUNIAPCSC	Universal optical connector, 8° angled, SC
EUNIAPCDIN	Universal optical connector, 8° angled, DIN
ELCSMXX-YY-ZZ	OTDR launch 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). Launch cables with MPO connectors are only available in 20 m or 25 m versions.