8100D OTDR EVO E8129D-62 1550/1625 nm OTDR Module for OneAdvisor 800 Fiber

Dual-wavelength 1550/1625 nm 8100D OTDR EVO module for the OneAdvisor 800 Fiber platform with up to 50 dB dynamic range.

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 E8129D-62 is the 1550/1625 nm dual-wavelength member of the 8100-Series OTDR EVO family of OTDR modules for the OneAdvisor 800 Fiber platform. The 8100D module is 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.

The module can be connected anywhere on the fiber to characterize the link for commissioning, network upgrades and troubleshooting. Its dead zone performance allows full characterization of element events on a fiber link 2 meters apart, and it is PON-optimized to test through a 1x128 splitter. Automatic traffic detection avoids the risk of live signal interference or damage to the optical transmitter when an OTDR test is started on a fiber carrying traffic.

Standard testing features include automatic macrobend detection, a summary results table with pass/fail analysis and FastReport onboard report generation. Smart Link Mapper (SLM) presents results as a link map to reduce OTDR interpretation errors without extending test time.

According to the datasheet ordering information, the integrated light source and power meter available on other 8100D versions are not available on the E8129D-62.

Key Features

Dual-wavelength 1550/1625 nm OTDR module for the OneAdvisor 800 Fiber platform
Up to 50 dB dynamic range and 256,000 acquisition points
0.5 m event dead zone and 2.5 m attenuation dead zone
Full characterization of element events on a fiber link 2 meters apart
PON optimized to test up to 1x128 splitter type
Characterizes single-mode standard and hollow core fibers
Instantaneous automatic traffic detection protects live signals and optical transmitters
Smart Link Mapper (SLM) eliminates OTDR interpretation errors without compromising on 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
Source and power meter not available on this version

Specifications

General

Weight	approx. 500 g (1.1 lb) Typical at 25°C
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

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

Wavelengths E8129D-62	1550/1625 nm E8129D-62 is the 1550/1625 nm OTDR module per the ordering information
Central wavelength E8129D-62	1550 ±20 nm; 1625 +15/–5 nm Laser at 25°C and measured at 10 µs. The 8100D family also lists 1310 ±20 nm and 1650 ±1 nm, which are not wavelengths of this version
Dynamic range	50/50/50/48 dB 8100D family value; 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. The 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 8100D family value; 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 non-reflective transition at 100 ns, after a 15 dB Rayleigh backscattering difference between solid core fiber and hollow core fiber

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

Options & Accessories

Option	Description
EUNIPCFC	Universal optical connector, straight, FC — Straight (PC) universal optical connector for the OTDR port
EUNIPCSC	Universal optical connector, straight, SC — Straight (PC) universal optical connector for the OTDR port
EUNIPCST	Universal optical connector, straight, ST — Straight (PC) universal optical connector for the OTDR port
EUNIPCDIN	Universal optical connector, straight, DIN — Straight (PC) universal optical connector for the OTDR port
EUNIAPCFC	Universal optical connector, 8° angled, FC — 8° angled (APC) universal optical connector for the OTDR port
EUNIAPCSC	Universal optical connector, 8° angled, SC — 8° angled (APC) universal optical connector for the OTDR port
EUNIAPCDIN	Universal optical connector, 8° angled, DIN — 8° angled (APC) universal optical connector for the OTDR port