VIAVI 4100 Series CWDM OTDR modules for T-BERD/MTS platforms

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VIAVI T-BERD/MTS 4100 Series CWDM OTDR Modules

CWDM OTDR modules for T-BERD/MTS platforms covering 18 CWDM wavelengths in two modules for in-service testing through MUX/DEMUX.

CWDM wavelengths: 1271/1291/1311/1331/1351/1371/1391/1411/1431/1451/1471/1491/1511/1531/1551/1571/1591/1611nm +/-3nm
Wavelength range: 1271 to 1451 nm
Wavelength range: 1471 to 1611 nm
Wavelength range: 1431 to 1611 nm

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Overview

The VIAVI 4100 Series CWDM OTDR modules are plug-in optical time domain reflectometer modules for the T-BERD/MTS-2000, -4000 V2 and -5800 test platforms. They are used by cable operators, dark fiber providers and telecommunication service providers to test through MUX/DEMUX and to perform end-to-end link characterization or troubleshooting of active C-RAN, DAS and mobile fronthaul CWDM networks.

The family is offered in three versions. The CWDM8U module covers 8 wavelengths from 1471 nm to 1611 nm, the CWDM10U module covers 10 wavelengths from 1431 nm to 1611 nm, and the CWDM10L module covers 10 wavelengths from 1271 nm to 1451 nm. Two modules together cover all 18 CWDM wavelengths.

Each module integrates a continuous wave light source with modulation capability at the same wavelengths as the OTDR, which can be used to verify end-to-end continuity. Automatic traffic detection and in-service testing allow new CWDM wavelength routes to be tested and faults to be located without disrupting traffic on active channels.

Software and analysis

On the T-BERD/MTS platform, testing features include automatic multitest configurations, a summary results table with pass/fail analysis and FastReport onboard report generation. The optional Smart Link Mapper (SLM) converts the OTDR trace into icons for splices, connectors and MUX/DEMUX elements. The modules can be combined with the COSA-4055 CWDM optical spectrum analyzer module to measure the wavelengths and power levels of active CWDM channels.

Model	Description
E41CWDM10L	T-BERD/MTS 4100 Series CWDM OTDR Module E41CWDM10L, 10 Wavelengths 1271 to 1451 nm CWDM OTDR module covering 10 CWDM wavelengths from 1271 nm to 1451 nm for T-BERD/MTS platforms, with integrated CW light source.	Details →
E41CWDM8U	VIAVI 4100 Series E41CWDM8U CWDM OTDR Module, 8 Wavelengths 1471 to 1611 nm CWDM OTDR module for T-BERD/MTS platforms covering 8 CWDM wavelengths from 1471 nm to 1611 nm with in-service testing.	Details →
E41CWDM10U	VIAVI T-BERD/MTS 4100-Series E41CWDM10U CWDM OTDR Module, 1431 to 1611 nm 10-wavelength CWDM OTDR module covering 1431 to 1611 nm for in-service testing of CWDM networks on T-BERD/MTS platforms.	Details →

CWDM wavelengths	1271/1291/1311/1331/1351/1371/1391/1411/1431/1451/1471/1491/1511/1531/1551/1571/1591/1611nm +/-3nm Laser at 25°C and measured at 10 µs
Wavelength range E41CWDM10L	1271 to 1451 nm
Wavelength range E41CWDM8U	1471 to 1611 nm
Wavelength range E41CWDM10U	1431 to 1611 nm
Pulsewidth	10 ns to 20 μs
Dynamic range	35dB One-way difference between the extrapolated backscattering level at the start of the fiber and the RMS noise level, after 3 minutes averaging and using the largest pulsewidth; typical at 25°C
Event dead zone	1.5 m Measured at ±1.5 dB down from the peak of an unsaturated reflective event using the shortest pulsewidth
Attenuation dead zone	5 m Measured at ±0.5 dB from the linear regression using a FC/PC reflectance and using the shortest pulsewidth
Automatic traffic detection	Yes
In-service testing	Yes

Wavelengths	Same as OTDR
Output power	-3.5 dBm
Operating modes	CW, 270 Hz, 330 Hz, 1 kHz, 2 kHz Subtract 3 dB when used in modulation mode (270/330/1/2 kHz)

Mode	Automatic or dual cursor
Display range	From 0.5 up to 260 km
Display resolution	1 cm
Cursor resolution	From 1 cm
Sampling resolution	From 4 cm
Accuracy	±1 m ±sampling resolution ±1.10-5 x distance Excluding group index uncertainties

Mode	Automatic, manual, 2-point, 5-point and LSA
Display range	From 1.25 dB to 55 dB
Display resolution	0.001 dB
Cursor resolution	From 0.001 dB
Attenuation linearity	±0.03 dB/dB
Threshold	0.01 to 1.99 dB in 0.01 dB step

Mode	Automatic or manual
Reflectance accuracy	±2 dB
Display resolution	0.01 dB
Threshold	–11 to –98 dB in 1 dB steps

Laser safety	Class 1 (IEC), Class 1 (21CFR)
Distance units	Km/m/mile/ft
Group index range	1.30000 to 1.70000 in 0.00001 steps
Number of data points	Up to 256,000 data points
Storage	Bellcore/Telcordia compatible Version 1.1 and Version 2.0
Compatible platforms	T-BERD/MTS-2000, −4000 V2, −5800 Web page also lists the T-BERD/MTS-4000 platform

Weight	430g (0.95 lb)
Dimensions (w x h x d)	128 x 134 x 40 mm (5 x 5.28 x 1.58 in)

Option	Description
SLM	Smart Link Mapper — Optional software that converts the OTDR trace into icons (splice, connector, MUX/DEMUX)
EUSCADS	Screw type SC adapter for PC connectors
EUFCADS	Screw type FC adapter for PC and APC (8°) connectors
EULCADS	Screw type LC adapter for PC connectors
EUSCADS-APC	Screw type SC adapter for APC (8°) connectors
EULCADS-APC	Screw type LC adapter for APC (8°) connectors

VIAVI T-BERD/MTS 4100 Series CWDM OTDR Modules

Overview

Software and analysis

Models in this series

Key Features

Specifications

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Options & Accessories

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