DCM Dispersion Compensation Device 19" 1U Size for SDH & DWDM Systems
Dispersion Compensation Modules (DCMs) are designed to compensate the dispersion of conventional G.652 fiber or other transmission fibers having a positive dispersion that occurs in long-haul optical transmission systems. These products offer superior polarization mode dispersion (PMD) performance and a negative dispersion slope, allowing a DWDM or long-haul system to maintain signal integrity over great distances.
Low insertion loss and PMD make the product ideal for long-haul telecommunication systems as well as DWDM transport. The compact 1U size can be mounted easily on 19 and 23-inch cabinet rack.
Product Features
● DWDM system dispersion compensation and broadband low residual dispersion
● G.652 fiber C-band 100% slope compensation (standard value)
● Low insertion loss
● Low polarization mode dispersion
● Performance indicators by Telcordia GR-2854-CORE standard certification
● Reliability by Telcordia GR-1221-CORE standard certification
Product Application
- SDH high-speed optical transmission system
- DWDM optical transmission system
- G.652 Standard single-mode optical fiber long-distance and metropolitan area communication system
Product Specification
Item |
Petemeter |
Equivalent G.652 compensation length |
20Km |
40Km |
60Km |
80Km |
100Km |
120Km |
1545nm wavelength dispersion (ps/nm) |
-340±20 |
-670±30 |
-1000±40 |
-1340±50 |
-1670±60 |
-2040±60 |
1545nm relative dispersion slope (nm-1) |
0.004±20% |
Insertion loss (dB) |
≤3.5 |
≤5.0 |
≤6.8 |
≤8.7 |
≤10.7 |
≤12.9 |
Polarization mode dispersion (ps) |
≤0.5 |
≤0.8 |
≤1.0 |
≤1.2 |
≤1.3 |
≤1.4 |
Polarization dependent loss (ps) |
≤0.1 |
≤0.1 |
≤0.1 |
≤0.1 |
≤0.1 |
≤0.1 |
Optical reflection (dB) |
-27 |
Maximum permissible input power (dBm) |
+23 |
Working temperature range |
-5°C~70°C |
Storage temperature range |
-40°C~85°C |
Environmental/Reliability Testing |
Conform to Telcordia GR-2854 and GR1221standard |
Interface type |
LC/PC or to be customized |
Packaging |
Rackmount: 1U, (D)220mm×(W)442mm×(H)44mm
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