Dispersion compensation board (60km for G.652)

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PN: 03027351 Category:
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Huawei OSN 3500 System Test Procedure
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Supports the compensated dispersion of 1020 ps/nm (for the dispersion caused by the 60 km G.652 optical fiber).

Compensates for the dispersion accumulated during the transmission by using the chirp grating and suppresses the pulse signals to restore the optical signals.

Realizes long haul transmission with optical regeneration when working with the BA and PA..


SSN1DCU01 is a dispersion compensation board for Huawei OSN3500, OSN7500, provide equally 60km compensate for the dispersion after long haul transmission for 10G signal system. The SSN1DCU01 part number is 03027351

Tech Specs
Front Pannel
The front panel of the SSN1DCU01 has interface


Vaild Slot
OSN 3500 subrack: When the cross-connect board is SXCSA, PSXCSA, IXCSA, SSN1DCU01 can be installed in slots 1–8 and 11–17.

OSN 7500 subrack: SSN1DCU01 can be installed in slots 1–8, 11–18, and 26–31.

Optical Interface Parameter
Parameter Value
9953280 kbit/s
Dispersion compensating fiber type G.652 fiber
Typical dispersion compensation distance(km) 60
Line code pattern(dB) NRZ
Dispersion compensation slope 1020 (60 km)
-0.5 dB bandwidth (nm) >0.4
Insertion loss (dB) < 8.3 dB
Mechanical Specification
Dimensions (mm) 25.4 x 235.2  x 261.4
Weight (kg) 0.4


Additional information
Weight 3.0 kg
Dimensions 37.5 × 34.0 × 7.5 cm

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Q: What the difference between different functional version?

A: The DCU is available in two functional versions, namely, N1 and N2.The difference as below:

N1 N2
The insertion loss Less More
Compensation modes 60km and 80km 40km, 60km and 80km


Q: What the last two number mean of SSN1DCU01?

A: The last two digital number means the DCU feature code, the relation as below:

Board Feature Code Output Optical Power
SSN1DCU01 01 Compensated dispersion for a single channel: 60 km
SSN1DCU02 02 Compensated dispersion for a single channel: 80 km
SSN1DCU03 03 Compensated dispersion for dual channels: 60 km/60 km
SSN1DCU04 04 Compensated dispersion for dual channels: 80 km/80 km
SSN1DCU05 05 Compensated dispersion for dual channels: 60 km/80 km
SSN2DCU01 01 Compensated dispersion for a single channel: 40 km
SSN2DCU02 02 Compensated dispersion for a single channel: 60 km
SSN2DCU03 03 Compensated dispersion for a single channel: 80 km
SSN2DCU04 04 Compensated dispersion for dual channels: 40 km/40 km
SSN2DCU05 05 Compensated dispersion for dual channels: 60 km/60 km
SSN2DCU06 06 Compensated dispersion for dual channels: 80 km/80 km
SSN2DCU07 07 Compensated dispersion for dual channels: 40 km/60 km
SSN2DCU08 08 Compensated dispersion for dual channels: 40 km/80 km
SSN2DCU09 09 Compensated dispersion for dual channels: 60 km/80 km


Q: Can I use it to compensate STM-16 signal?

A: No, it working bit rate is 10G, only for STM-64 signal.


Q: Can I use two 40km compensation card to replace one 80km compensation condition?

A: Yes, but please consider the insert loss of DCU board, if your optical power is not enough. More technical assistance, you can contact with


Q: My compensation required is 60km, can I use 40km or 80km instead if I don’t have 60km board?

A: 40km is recommended, principle is less compensation, not over compensation.


Q: Can I return/exchange board if not compatible with my system?

A: Yes, please tell our sales team your system and main control board version, before your purchase.


Q: The board is new or refurbished?

A: Yes, it is original new, not been used.


Q: What is the lead time for SSN1DCU01 board?

A: In normal condition is 5 days, better to confirm with our sales team before your purchase.

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