200G QSFP56 InfiniBand HDR SR4 850nm 100m MMF Optical Transceiver

NADDOD Abel Feb 1, 2023


  • Up to 200Gb/s data rate
  • Up to 100m on OM4 and 70m on OM3 multimode fiber at 200Gb/s
  • 4x 50Gb/s PAM4 modulation
  • Programmable Rx output amplitude and emphasis
  • Adaptive Tx input equalizer
  • SFF-8665 compliant QSFP56 port
  • SFF-8636 DDM compliant
  • Single 3.3V power supply
  • 4.5W power dissipation
  • BER 1E-15 with InfiniBand systems
  • QSFP56 power class 5
  • Class 1 laser safety
  • Hot pluggable
  • RoHS compliant
  • IEEE 802.3 200GAUI-4 / 200GBASESR4 compliant
  • SFF-8636 compliant I2C management interface


Q56-200G-SR4H 200G SR4 InfiniBand transceiver is a 4-channel, pluggable, QSFP56, optical transceiver designed for use in 200Gb/s InfiniBand applications. This module incorporates integrated circuit technology in order to provide high performance. The transceiver operates over 4-lane parallel multi-mode fiber (MMF), using a nominal wavelength of 850nm, and is QSFP56 MSA compliant.

The transceiver has a standard SFF-8665 compliant QSFP56 connector on the electrical side towards the host system. The optical interface is composed of four optical channels/fibers in each direction, intended for a parallel multi-mode optical cable via a standard MPO-12 UPC connector. Each channel/fiber operates at signaling rates up to 26.5625GBd. Rigorous production testing ensures the best out-of-the-box installation experience, performance and durability.

The Q56-200G-SR4H transceiver has Digital Diagnostic Monitoring functions for supply voltage, temperature, laser bias current, optical transmit and receive levels with associated warning and alarm thresholds.The Q56-200G-SR4H transceiver will work with a fiber plant as specified in the QSFP MSA standard.

Absolute Maximum Ratings

Table1-Absolute Maximum Ratings

Parameter Symbols Min. Typical Max. Unit Notes
Storage Temperature TSTG -40 +85 ºC
Operating Relative Humidity (non-condensing) RH +5 85 %
Supply Voltage Vcc -0.3 3.6 V
Receiver Damage Threshold per Lane PRDMG 3.4 dBm
Data input voltage Vcc -0.3 3.465 V
Control input voltage Vcc -0.3 4.0 V

[1]No condensation

Recommended Operating Conditions

Table2-Recommended Operating Conditions

Parameter Symbols Min. Typical Max. Unit Notes
Case Temperature Tc 0 +70 ºC
Operating Relative Humidity (non-condensing) RH +5 85 %
Supply Voltage Vcc 3.135 3.3 3.465 V
Power Dissipation Pd 4.5 5.0 W
Supply noise tolerance (10Hz-10MHz) 66 mVpp
Link Distance with G.652 D 100 m

Optical interface arrangement

Optical interface arrangement

Figure 1 Optical interface arrangement

Mechanical Dimensions

Mechanical Outline

Figure 2 Mechanical Outline


Handling Precautions: This device is susceptible to damage as a result of electrostatic discharge (ESD).

A static free environment is highly recommended. Follow guidelines according to proper ESD procedures.

Laser Safety

Radiation emitted by laser devices can be dangerous to human eyes. Avoid eye exposure to direct or indirect radiation.

Datasheet: 200G QSFP56 InfiniBand HDR SR4 850nm 100m MMF Optical Transceiver