PRODDUCTS

Shenzhen JHA Technology Co., Ltd is one of the leading manufacturers of hardened Ethernet, PoE, and fiber connectivity products specifically designed for harsh and demanding environments.

PRODUCTS

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100-4*25G Active optical cabel (QSFP28-4*SFP28) JHA-QSFP28-4SFP28-100G-AOC


    • Support 4x25GBASE-SR application
    • Compliant to QSFP28 MSA SFF-8636 and SFP28 MSA SFF-8431 and SFF- 8472
    • Multi rate of up to 25.78125Gbps per lane
    • Transmission distance up to 50m
    • +3.3V single power supply
    • Low power consumption
    • UL certification cables (optional)
    • Operating temp Commercial: 0°C to +70 °C
    • RoHS compliant
  • Applications

    ◊ 4x25Gbe-SR

    ◊ Other optical links

Classification

Network Cabling

AOC(Active Optical Cable)


  • DESCRIPTION
  • DIMENSION
  • ORDER INFORMATION
  • DOWNLOAD
  • APPLICATIONS
  • Specification:

    Absolute Maximum Ratings

    Table1- Absolute Maximum Ratings

          Parameter

    Symbol

    Min.

    Typical

    Max.

    Unit

    Notes

    Supply Voltage

    Vcc3

    -0.5

    -

    +3.6

    V

     

    Storage Temperature

    Ts

    -10

    -

    +70

    °C

     

    Operating Humidity

    RH

    +5

    -

    +85

    %

    1

    Note: 1 No condensation

    Recommended Operating Conditions

    Table 2- Recommended operating Conditions

    Parameter Symbol Min. Typical

    Max.

    Unit Notes
    Operating  Temperature TC 0 -

    +70

    °C  
    Power Supply Voltage Vcc 3.14 3.3

    3.47

    V  
    Power Dissipation per QSFP28 Pd - -

    2.5

    W  
    Power Dissipation per SFP28 Pd - -

    1.0

    W 1
    Bit Rate  per Lane BR 10.3125 25.78125 - Gbps  

    Note: 1 Per terminal

    Electrical Characteristics

    Table 3- Electrical Characteristics for QSFP28

    Parameter Symbol Min. Typ. Max. Units Notes
     ModSelL Module Select VOL 0 - 0.8 V  
    Module Unselect VOH 2.5 - VCC V  
     LPMode Low Power Mode VIL 0 - 0.8 V  
    Normal Operation VIH 2.5 - VCC+0.3 V  
     ResetL Reset VIL 0 - 0.8 V  
    Normal Operation VIH 2.5 - VCC+0.3 V  
    ModPrsL Normal Operation VOL 0 - 0.4 V  
     IntL Interrupt VOL 0 - 0.4 V  
    Normal Operation VoH 2.4 - VCC V  
    Electrical Transmitter Characteristics
    Differential Date Input Swing Vin,P-P 200 - 1600 mV  
    Output Differential Impedance ZIN 90 100 110 Ω  
    Electrical Receiver Characteristics
    Differential Data Output Swing Vout 200 - 800 mVPP  
    Bit Error Rate BER     E-12   1
    Input Differential Impedance ZD 90 100 110 Ω  

    Note: 1 PRBS2^31-1@25.78125Gbps

    Table 4- Electrical Characteristics for SFP28

    Parameter Symbol Min. Typ.

    Max.

    Units Notes
    Electrical Transmitter Characteristics
    Differential Data Input Swing Vin,P-P 200 - 1600 mVPP  
    Input Differential Impedance ZIN 90 100 110 Ω  
     Tx_Fault Normal Operation VOL 0 - 0.8 V  
    Transmitter Fault VOH 2.0 - VCC V  
     Tx_Disable Normal Operation VIL 0 - 0.8 V  
    Laser Disable VIH 2.0 - VCC+0.3 V  
    Electrical Receiver Characteristics
    Differential Date Output Vout 400 -

    800

    mV  
    Bit Error Rate BER - -

    E-12

    -  
    Output Differential Impedance ZD 90 100

    110

    Ω  
     Rx_LOS Normal Operation VOL 0 -

    0.8

    V  
    Lose Signal VoH 2.0 -

    VCC

    V  

    Pin arrangement

     

     

                 Figure 1, Pin View for QSFP28

    Table 5- Pin Function Definitions for QSFP28

    Pin Symbol Name/Description Notes
    1 GND Ground 1
    2 Tx2n Transmitter Inverted Data Input  
    3 Tx2p Transmitter Non-Inverted Data Input  
    4 GND Ground 1
    5 Tx4n Transmitter Inverted Data Input  
    6 Tx4p Transmitter Non-Inverted Data Input  
    7 GND Ground 1
    8 ModSelL Module Select  
    9 ResetL Module Reset  
    10 Vcc Rx +3.3V Power Supply Receiver  
    11 SCL 2-wire serial interface clock  
    12 SDA 2-wire serial interface data  
    13 GND Ground 1
    14 Rx3p Receiver Non-Inverted Data Output  
    15 Rx3n Receiver Inverted Data Output  
    16 GND Ground 1
    17 Rx1p Receiver Non-Inverted Data Output  
    18 Rx1n Receiver Inverted Data Output  
    19 GND Ground 1
    20 GND Ground 1
    21 Rx2n Receiver Inverted Data Output  
    22 Rx2p Receiver Non-Inverted Data Output  
    23 GND Ground 1
    24 Rx4n Receiver Inverted Data Output  

     

    Pin

    Symbol

    Name/Description Notes
    25 Rx4p Receiver Non-Inverted Data Output  
    26 GND Ground 1
    27

    ModPrsL

    Module Present  
    28 IntL Interrupt  
    29 Vcc Tx +3.3V Power supply transmitter  
    30 Vcc1 +3.3V Power supply  
    31

    LPMode

    Low Power Mode  
    32 GND Ground 1
    33 Tx3p Transmitter Non-Inverted Data Input  
    34 Tx3n Transmitter Inverted Data Input  
    35 GND Ground 1
    36 Tx1p Transmitter Non-Inverted Data Input  
    37 Tx1n Transmitter Inverted Data Input  
    38 GND Ground 1

    Note: 1. Circuit ground is internally isolated from chassis ground.

     

    Figure 2, Pin View for SFP28

    Table 6-Pin Function Definitions

    Pin Symbol Name/Description Notes
    1 VEET Module Transmitter Ground 1
    2 TX_FAULT Module Transmitter Fault 2
    3 TX_DISABLE Transmitter Disable; Turns off transmitter laser output 3
    4 SDA 2-Wire Serial Interface Data Line (MOD-DEF2)  
    5 SCL 2-Wire Serial Interface Clock (MOD-DEF1)  
    6 MOD_ABS Module Absent, connected to VEET or VEER in the module 2
    7 RS0 Rate Select 0, optionally controls SFP+ module receiver 4
    8 RX_LOS Receiver Loss of Signal Indication (In FC designated as Rx_LOS and in Ethernet designated as NOT Signal Detect) 2
    9 RS1 Rate Select 1, optionally controls SFP+ module transmitter 4

     

    Pin Symbol Name/Description Notes
    10 VEER Module Receiver Ground 1
    11 VEER Module Receiver Ground 1
    12 RD- Receiver Inverted Data Output  
    13 RD+ Receiver Non-Inverted Data Output  
    14 VEER Module Receiver Ground 1
    15 VCCR Module Receiver 3.3 V Supply  
    16 VCCT Module Transmitter 3.3 V Supply  
    17 VEET Module Transmitter Ground 1
    18 TD+ Transmitter Non-Inverted Data Input  
    19 TD- Transmitter Inverted Data Input  
    20 VEET Module Transmitter Ground 1

    Note:

    1. The module ground pins are isolated from the module case.
    2. The pins shall be pulled up with 4.7K-10Kohms to a voltage between 3.14V and 3.46V on host board.
    3. The pin is pulled up to VCCT with a 4.7K-10KΩ resistor in the module.
    4. See SFF-8472 Rev12.2 Table 10-2.

     

     

    Recommended Circuit

    Figure 3, Recommended Interface Circuit for QSFP28

     

    Figure 4, Recommended Host Board Power Supply Circuit for SFP28

     

    Figure 5, Recommended Interface Circuit for SFP28

     

    Monitoring Specification

    87 

    Figure 6, Memory Map for QSFP28

     98         

                Figure 7, Memory Map for SFP28

    Mechanical

    Unit mm

     42442

              Figure 8, Mechanical Diagram

    Table 7- Cable Length

    Cable Length  L1Unit: m TolerantUnit: cm
    ≤1.0 +5/-0
    1.0L4.5 +15/-0
    4.5L14.5 +30/-0
    >14.5 +2%/-0

    Table 8- Breakout Cable Nominal Length

    Total Length L1 (Unit: m)

    Breakout Point Measured from SFPL2(Unit: m)
    1 0.7
    2 1.4
    3 2
    ≥5 3

    Warnings

    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.

     
  • Applications

    ◊ 4x25Gbe-SR

    ◊ Other optical links

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