VIAVI 4100 Series E41DWDMC C-Band DWDM OTDR Module
C-band DWDM OTDR module for in-service characterization and troubleshooting of DWDM and hybrid CWDM/DWDM fiber networks.
- 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
Overview
The VIAVI E41DWDMC is the DWDM OTDR module of the 4100 Series. It performs end-to-end link characterization and troubleshooting through MUX/DEMUX of newly deployed or active DWDM and hybrid CWDM/DWDM networks, using the exact DWDM wavelengths of the ITU-T G.694.1 grid in the C-band (CH12 to CH62).
The module is used by cable, wireless and telecommunications operators on C-RAN and mobile fronthaul access networks, passive DWDM networks for cable business services, metro and access rings, and next-generation FTTH networks. Testing through the MUX and common (test) port allows faulty links to be located while traffic on active channels continues.
An integrated CW light source with modulation capability verifies end-to-end continuity through MUX/DEMUX and ROADMs before service turn-up. The optional patented Wavescan software identifies and tests the DWDM port channel automatically, and the SFP Protect option guards against accidental transceiver damage. The optional Smart Link Mapper application shows the link as icons, with splices, connectors and MUX/DEMUX components.
The module fits the T-BERD/MTS-2000, T-BERD/MTS-4000 V2, T-BERD/MTS-5800, CellAdvisor 5G and OneAdvisor 800 platforms. Standard platform testing features include automatic setting of acquisition parameters, a summary results table with pass/fail analysis against international standards, event diagnosis and FastReport onboard report generation.
Key Features
- C-band DWDM OTDR at ITU-T G.694.1 wavelengths, C62 to C12 (1527.99 nm – 1567.95 nm)
- 50 GHz/100 GHz/200 GHz channel spacing based on the ITU-T grid
- 44 dB dynamic range for access and metro applications
- Integrated CW light source with modulation capability
- Instantaneous traffic detection
- In-service testing via MUX and common (test) port
- Automatic DWDM port channel identification and testing with patented Wavescan (option)
- SFP Protect option to avoid accidental transceiver damage
- Smart Link Mapper option for icon-based link view with 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
| Laser safety |
Class 1 (IEC), Class 1 (21CFR)
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 |
| Storage | Bellcore/Telcordia compatible Version 1.1 and Version 2.0 |
| 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
|
| 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 |
| Mode | Automatic or manual |
|---|---|
| Reflectance accuracy | ±2 dB |
| Display resolution | 0.01 dB |
| Threshold | –11 to –99 dB in 1 dB steps |
| 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
E41DWDMC
|
44dB (non filtered)
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; 42.5 dB applies to the filtered model
|
| 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 |
|
DWDM OTDR Module part number
E41DWDMC
|
E41DWDMC-PC/-APC
PC or APC connector version
|
|---|---|
| Compatible platforms | T-BERD®/MTS-2000, -4000 V2, -5800, CellAdvisor 5G and OneAdvisor 800 Platforms |
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 business services
- Qualification of fronthaul access 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 — Automatically identifies and tests the DWDM port channel/link |
| ESFPPROTECT | SFP Protect SW option for DWDM OTDR Module — Avoids accidental transceiver damage |
| EUSCADS | Switchable adapter (SC) |
| EUSCADS-APC | Switchable adapter (SC/APC) |
| EUFCADS | Switchable adapter (FC) |
| EULCADS | Switchable adapter (LC) |
| EULCADS-APC | Switchable adapter (LC/APC) |