VIAVI 4100 Series E41FDWDMC Tunable Filter DWDM OTDR Module

Tunable filter C-band DWDM OTDR module (C62 to C12) with integrated tunable light source for in-service DWDM link testing.

Laser safety: Class 1 (IEC), Class 1 (21CFR)
Weight: 510 g (1.12 lb)
Dimensions (w x h x d): 128 x 134 x 40 mm (5 x 5.28 x 1.58 in)
Operating and storage temperature: Refer to platform's datasheet

Datasheet

Overview

The VIAVI E41FDWDMC is the tunable filter version of the 4100 Series DWDM OTDR module. It is designed for end-to-end link characterization and troubleshooting through MUX/DEMUX of newly deployed or active DWDM and hybrid CWDM/DWDM networks, and is used with the T-BERD/MTS-2000, -4000 V2, -5800, CellAdvisor 5G and OneAdvisor 800 platforms.

The module tunes across the C-band from channel C62 to C12 (1527.99 nm to 1567.95 nm) on the ITU-T G.694.1 grid with 50, 100 or 200 GHz channel spacing. The tunable filter allows testing through the MUX and common (test) ports without disrupting traffic on active channels, and automatic traffic detection is built in.

An integrated C-band tunable light source with CW and modulated output modes is used to verify end-to-end continuity through MUX/DEMUX and ROADMs before service turn-up. Software options add Wavescan, which automatically identifies and tests the DWDM port channel or link, and SFP Protect, which helps avoid accidental transceiver damage.

Platform test features

Standard testing features include auto-setting of the acquisition parameters, a summary results table with pass/fail analysis per international standards, event diagnosis and FastReport onboard report generation. The optional Smart Link Mapper (SLM) application presents the fiber link as an icon-based view of splices, connectors and MUX/DEMUX components.

Key Features

Tunable filter DWDM OTDR in the C-band, C62 to C12 (1527.99 nm – 1567.95 nm / 196.20 - 191.20 THz)
ITU-T G.694.1 wavelengths with 50 GHz/100 GHz/200 GHz channel spacing
44 dB dynamic range (non filtered), 42.5 dB (filtered)
Integrated C-band tunable CW light source with modulation capability
Instantaneous traffic detection
In-service testing via MUX and common (test) port
Automatic identification and testing of DWDM port channel/link with patented Wavescan
SFP Protect to avoid accidental transceiver damage
Smart Link Mapper (SLM) option with icon-based view of splices, connectors and MUX/DEMUX
Auto-setting of acquisition parameters
Summary results table with pass/fail analysis per international standards
FastReport onboard report generation

Specifications

General

Laser safety	Class 1 (IEC), Class 1 (21CFR) Specifications typical at 25°C
Weight	510 g (1.12 lb)
Dimensions (w x h x d)	128 x 134 x 40 mm (5 x 5.28 x 1.58 in)
Operating and storage temperature	Refer to platform's datasheet
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

Distance Measurements

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 32 cm
Accuracy	±0.75 m ±sampling resolution ±1.10-5 x distance Excluding group index uncertainties

Attenuation Measurements

Mode	Automatic, manual, 2-point, 5-point and LSA
Display range	From 1.25 dB to 55 dB
Display resolution	0.001 dB
Attenuation linearity	±0.03 dB/dB
Threshold	0.01 to 5.99 dB in 0.01 dB step
Cursor resolution	From 0.001 dB

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
Storage	Bellcore/Telcordia compatible Version 1.1 and Version 2.0

OTDR and Light Source

Wavelengths	C-band tuning – C62 to C12 (1527.99 nm – 1567.95 nm) @ 100 GHz Laser at 25°C and measured at 10 µs
Channel spacing	50/100/200 GHz
Pulsewidth	10 ns to 20 µs
Dynamic range (non filtered)	44 dB 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
Dynamic range (filtered)	42.5 dB 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
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	4 m Measured at ±0.5 dB from the linear regression using a FC/PC reflectance and using the shortest pulsewidth
Light source wavelengths	Same as OTDR
Light source output power level	0 dBm Subtract 3 dB when used in modulation mode (270/330/1/2 kHz)
Light source operating modes	CW, 270 Hz, 330 Hz, 1 kHz, 2 kHz
Automatic traffic detection	Yes
In-service testing	Yes

Ordering Information

Tunable Filter DWDM OTDR Module	E41FDWDMC-PC/-APC

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

Applications

Metro and access DWDM rings
Business-to-business services
C-RAN and mobile fronthaul access networks
Next-generation FTTH networks
Passive DWDM networks for cable TV business services
Hybrid CWDM/DWDM networks
End-to-end continuity verification prior to service turn-up
Testing new DWDM wavelength routes without disrupting active channels
In-service fault location

Options & Accessories

Option	Description
EWAVESCAN	Wavescan SW option for DWDM OTDR Module
ESFPPROTECT	SFP Protect SW option for DWDM OTDR Module
EUSCADS	Switchable Adapter (SC)
EUSCADS-APC	Switchable Adapter (SC/APC)
EUFCADS	Switchable Adapter (FC)
EULCADS	Switchable Adapter (LC)
EULCADS-APC	Switchable Adapter (LC/APC)