The ACT QDD-200-LR4-LP10 is a high-performance 200 Gb/s QSFP-DD optical transceiver designed for next-generation data center and service provider networks requiring high bandwidth and extended reach. Supporting 200GBASE-LR4 with four LAN-WDM wavelengths over single-mode fiber, the module enables reliable transmission distances of up to 10 km, making it well suited for data center interconnect (DCI), metro aggregation, and high-capacity enterprise applications. Built on PAM4 modulation with a lane data rate of 53.125 Gb/s, the transceiver complies fully with IEEE 802.3cn 200GBASE-LR4, QSFP-DD MSA, and CMIS standards, ensuring broad interoperability with leading network platforms. The module integrates LAN-WDM lasers and PIN receivers in a compact QSFP-DD form factor with LC duplex connector, while maintaining a maximum power consumption of 10 W for efficient thermal performance in high-density environments. Designed for operational reliability, the ACT QDD-200-LR4-LP10 supports comprehensive Digital Diagnostic Monitoring (DDM), allowing real-time access to critical parameters such as temperature, voltage, bias current, and optical power. With the compliance with EU Directive 2015/863/EU (RoHS), this transceiver provides a robust, standards-based solution for scalable 200G optical deployments.
· Supports 200GBASE-LR4
· Lane bit rate 53.125 Gb/s with PAM4
· Up to 10km transmission on SMF
· LAN WDM laser and PIN receiver
· 200GAUI-8 Electrical interface with 8 Lanes 26.5625Gb/s NRZ high-speed signal
· QSFP-DD MSA package with duplex LC connector
· Compliant with IEEE 802.3cn 200GBASE-LR4
· Single +3.3V power supply
· Maximum power consumption 10W
· Operating case temperature: 0 to +70 °C
· Compliant to QSFP-DD CMIS & QSFP-DD MSA HW standard
· Complies with EU Directive 2015/863/EU
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Storage Temperature | TS | -40 | - | 85 | °C | |
Supply Voltage | VCC | -0.5 | - | 3.6 | V | |
Operating Relative Humidity | RH | - | - | 85 | % |
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Operating Case Temperature | TC | 0 | - | 70 | °C | |
Power Supply Voltage | VCC | 3.13 | 3.3 | 3.47 | V | |
Power Supply Current | ICC | - | - | 3.03 | A | 3.3V |
Power Consumption | P | - | - | 10 | W | |
Aggregate Bit Rate | BRAVE | - | 212.5 | - | Gb/s | With PAM4 |
| Lane Bit Rate | BRLANE | - | 53.125 | - | Gb/s | With PAM4 |
Transmission Distance | TD | - | - | 10 | km | Over SMF |
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Transmitter | ||||||
Signaling Rate, each Lane | BR | 26.5625 ± 100 ppm | GBd | |||
Modulation Format | PAM4 | |||||
Lane Wavelengths | L0 | 1294.53 | 1295.56 | 1296.59 | nm | |
L1 | 1299.02 | 1300.05 | 1301.09 | nm | ||
L2 | 1303.54 | 1304.58 | 1305.63 | nm | ||
L3 | 1308.09 | 1309.14 | 1310.19 | nm | ||
Side-Mode Suppression Ratio | SMSR | 30 | - | - | dB | |
Total Average Launch Power | PMAX | - | - | 11.3 | dBm | |
Average Launch Power, each Lane | POUT | -3.4 | - | 5.3 | dBm | 1 |
Outer OMA, each Lane | OMAouter | -0.4 | - | 5.1 | dBm | 2 |
Difference in Launch Power between Lanes (OMA) | - | - | 4 | dB | ||
Transmitter and Dispersion Eye Closure for PAM4 | TDECQ | - | - | 3.2 | dB | |
Average POUT (Laser Turn Off) | POFF | - | - | -30 | dBm | |
Extinction Ratio, each Lane | ER | 3.5 | - | - | dB | |
Receiver | ||||||
Signaling Rate, each Lane | BR | 26.5625 ± 100 ppm | GBd | |||
Modulation Format | PAM4 | |||||
Lane Wavelengths | L0 | 1294.53 | 1295.56 | 1296.59 | nm | |
L1 | 1299.02 | 1300.05 | 1301.09 | nm | ||
L2 | 1303.54 | 1304.58 | 1305.63 | nm | ||
L3 | 1308.09 | 1309.14 | 1310.19 | nm | ||
| Damage Threshold, each Lane | PDAMAGE | 6.3 | - | - | dBm | 3 |
Average Receive Power, each Lane | PRX _LANE | -9.7 | - | 5.3 | dBm | 4 |
Receive Power (OMAouter), each Lane | RXOMA | - | - | 5.1 | dBm | |
Receiver Sensitivity (OMAouter), each Lane | SENOMA | - | - | -7.2 | dBm | 5 |
1. Average launch power, each lane (min) is informative and not the principal indicator of signal strength. A
transmitter with launch power below this value cannot be compliant; however, a value above this does not
ensure compliance.
2. Even if the TDECQ < 1.4 dB for an extinction ratio of ≥ 4.5 dB or TDECQ < 1.3 dB for an extinction ratio of < 4.5 dB,
the OMAouter (min) must exceed this value.
3. The receiver shall be able to tolerate, without damage, continuous exposure to an optical input signal having this average power level.
4. Average receive power, each lane (min) is informative and not the principal indicator of signal strength. A received power below this value cannot be compliant; however, a value above this does not ensure compliance.
5. Measured with conformance test signal at TP3 for the BER 2.4E-4.
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Transmitter (Module Input) | ||||||
Differential Data Input Amplitude | VIN,P-P | 900 | - | - | mVpp | |
Differential Termination Mismatch | - | - | 10 | % | ||
Receiver (Module Output) | ||||||
Differential Data Output Amplitude | VOUT,P-P | - | - | 900 | mVpp | |
Differential Termination Mismatch(1MHZ) | - | - | 10 | % | ||
Low-speed Electrical Interface | ||||||
LPMode, ResetL, | VIL | -0.3 | - | 0.8 | V | |
ModSelL and ePPS | VIH | 2.0 | - | VCC+0.3 | V | |
ModPrsL | VOL | 0 | - | 0.4 | V | |
VIH | ModPrsL can be implemented as a short-circuit to GND on the module | |||||
IntL | VOL | 0 | - | 0.4 | V | |
VOH | VCC-0.5 | - | VCC+0.3 | V | ||

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