·       QSFP112 MSA Compliant

·       CMIS compliance

·       Support 425Gb/s aggregate bit rate

·       4 Parallel optical lanes

·       MPO-12 connector

·       Up to 500m transmission on SMF with KP4 FEC

·       Operating case temperature 0 to 70°C

The transceiver complies with common management interface specification (CMIS). The supported key features listed below allow host software to read and control the transceiver status through I2C.

·       Adaptive Tx input equalization

·      Programmable Rx output amplitude

·      Programmable Rx output pre-cursor

·      Programmable Rx output post-cursor

·      Supply voltage monitoring (DDM_Voltage)

·      Transceiver case temperature monitoring (DDM_Temperature)

·      Tx transmit optical power monitoring for each lane (DDM_TxPower)

·      Tx bias current monitoring for each lane (DDM_TxBias)

·      Rx receive optical power monitoring for each lane (DDM_RxPower)

·      Warning and alarm indication for each DDM function

·      Tx & Rx LOL and LOS indication

·      Tx fault indication

·      Host and line side loopback capabilities

·      Host and line side PRBS generator and checker capabilities

·      CDB firmware upgrade capability

·      Versatile diagnostics monitoring (VDM) capability (optional, additional power consumption increase)

·      Other functions defined in CMIS

Absolute Maximum Ratings

Recommended Operating Conditions

Note:
   1.     FEC provided by host system.
   2.       FEC required on host system to support maximum distance.

Electrical Characteristics

The following electrical characteristics are defined over the Recommended Operating Environment
unless otherwise specified.

 
Optical Characteristics

Notes:
    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.      The values for OMA_outer (min) vary with TDECQ. Below picture illustrates this along with the values for
             OMA_outer(max).
    3.      The receiver shall be able to tolerate, without damage, continuous exposure to a modulated optical
             input signal having this power level on one lane. The receiver does not have to operate correctly at
             this input power.
    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.      Receiver sensitivity (OMA_outer) is informative and is defined for a transmitter with a value of SECQ
             up to 3.4dB. Receiver sensitivity should meet Equation (1), which is illustrated in below picture.
             RS = max(−3.9, SECQ – 5.3) dBm where RS is the receiver sensitivity, and TECQ  is the TECQ of the
             transmitter used to measure the receiver sensitivity.
    6.      Measured with conformance test signal at TP3 for the BER equal to 2.4x10-4.
    7.      These test conditions are for measuring stressed receiver sensitivity. They are not characteristics of
             the receiver.

                                                            
Diagnostic Characteristics
The following digital diagnostic characteristics are defined over the normal operating conditions
unless otherwise specified.