A Brazilian fiber ISP case, our equipment in operator networks (metro DWDM, 400G DCI upgrade, OTDR monitoring) and typical DWDM, OLP and amplification configurations.
| Customer | Focco Telecom, fiber broadband ISP |
|---|---|
| Country / region | Brazil |
| Solution | DCI / DWDM wavelength-division equipment sourced through OptiLibra, with configuration review before order. |
Project configuration and network details are not published. Reference calls are arranged for qualified buyers on request.
Product cases: our equipment in operator networks. Operator names and site details are not published.
| Customer | Metropolitan network operator |
|---|---|
| Country / region | Asia-Pacific |
| Challenge | Two-way transport between data center A and data center B with several service channels; access for services from 100M to 400G (FE to 100GE, OTU1–OTU4, FC 1G–32G, STM-N, CPRI and eCPRI); and a simple design that is easy to install and expand. |
| Solution | A 40-channel DWDM point-to-point system: one OTU transponder per wavelength, 40-channel MUX/DEMUX at each end, and booster plus pre-amplifier on a single span. |
| Configuration | 6 wavelengths in service (C21–C26) carrying 100G and 10G switch traffic; Single span: 110 km, 30 dB; 40-channel MUX/DEMUX, BA + PA amplification |
| Result | Six wavelengths running over a 110 km, 30 dB span, with 34 free channels on the same multiplexers for later growth. |
| Customer | Telecom operator |
|---|---|
| Country / region | Asia-Pacific |
| Challenge | Links between the operator’s interconnected data centers needed more capacity, within the existing network architecture and equipment. |
| Solution | A 400G DWDM system designed around the existing architecture, with low-loss multi-wavelength multiplexing, integrated into the operator’s network along a route map supplied by the operator. |
| Configuration | 400G wavelengths between interconnected data centers; Low-loss multi-wavelength MUX/DEMUX; On-site installation and commissioning |
| Result | The data center links were upgraded and expanded to 400G without replacing the existing architecture. |
| Customer | Fiber network owner |
|---|---|
| Country / region | Asia-Pacific |
| Challenge | The maintenance team needed a continuous view of fiber quality across the network and a faster way to locate faults. |
| Solution | OTDR-based fiber line monitoring with monitoring software: real-time, online and automatic OTDR testing, GIS map resource management and several alarm reporting modes. |
| Configuration | OTDR test cards with optical switch polling; GIS map of fiber resources; Multiple alarm reporting modes |
| Result | Fiber quality is tested automatically and alarms are reported as they occur, so maintenance teams see the state of the whole network. |
| Data center operator | Asia-Pacific | 8 × 100G DWDM | 80 km |
| Internet exchange center | Asia-Pacific | 20 × 100G DWDM | 40 km |
| Regional telecom operator | Asia-Pacific | 12 × 10G DWDM | 60 km |
| Broadband data center | Asia-Pacific | 200G DWDM | 800 km |
| Network data center | Asia-Pacific | 8 × 100G DWDM | 1,200 km |
| Provincial mobile operator | Asia-Pacific | Optical line protection (OLP) for trunk transmission, selected in a public tender | Provincial trunk |
16 × 100G wavelengths (C21–C37) on 40-channel MUX/DEMUX. An OLP 1+1 card at each end sends the signal on a primary and a secondary fiber route and switches to the healthy one when a route fails.
Six sites on a ring with spans from 12 km / 4 dB to 61 km / 18 dB and up to 55 km / 20 dB. Booster, line and pre-amplifiers and dispersion compensation modules are placed per span.
Five sites with 100G switches. At each site 4 × 100G client ports feed dual-line 400G transponder cards (T4Q2); each 400G line goes through an OLP card and 8-channel MUX/DEMUX, so a fiber cut or a card fault is covered. Spans from 10 km / 3 dB to 68.2 km / 18.66 dB; the main site carries 8 × 100G.
Four 100GE switch ports are mapped onto one 400G wavelength (C21), and another four onto two 200G wavelengths (C22, C23), over one fiber pair.
Three 200G wavelengths on one fiber pair: 20 × 10G on the first, 2 × 100G on the second and 10 × 10G plus 1 × 100G on the third. Older 10G switches and new 100G switches share the same line.
Up to 40 wavelengths (C21–C60) over a single 250 km span with about 60 dB loss: booster EDFA and forward Raman at the transmitter (+8 dBm launch), backward Raman, pre-amplifier, dispersion compensation and booster at the receiver, with FEC on the transponders.
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