100G AOC cable

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Description

100G QSFP28 TO QSFP28 AOC cable

 

QSFP28 active optical cables (AOC) are high-performance active optical cables with bi-directional signal transmission and aggregate 100-Gbps bandwidth for both Infiniband EDR and Ethernet 100G-SR4 applications. Compared to conventional copper cables, longer and lighter optical cables enable the ease of complicated data-center cablings. The AOCs utilize multimode fiber with 850-nm VCSELs and PIN PDs. The certificated cables have superior signal integrity and bit error rate, which enables reliable operation performance.

 

Standard Compliance

100GBASE-SR4 (IEEE 802.3bm)

SFF-8665

 

Features

  • Four-channel full-duplex active optical cable
  • Multirate capability: 26 Gb/s per channel
  • QSFP28 high-density form factor
  • Reliable VCSEL array technology using multimode fiber
  • Round OFNP-rated cable
  • Hot Pluggable QSFP form factor
  • Low power dissipation: <3.5W per cable end (<2.5W with CDRs off)
  • Commercial operating case temperature range: 0ºC to 70ºC
  • UL certification optional cables
  • RoHS-6 Compliant

Specification

Environmental Specifications

EDR Active Optical Cables have an operating temperature range from 0°C to +70°C case temperature.

Form Parameter Symbol Min Typ Max Unit Ref.
Case Operating Temperature Top 0 70 °C
Storage Temperature Tsto -10 70 °C

 

Regulatory Compliance

EDR Active Optical Cables are RoHS-6 Compliant.

EDR Active Optical Cables are Class 1 laser eye safety compliant per IEC 60825-1.

Standard fiber cable type is round-section construction, plenum-rated. Other cable types can be supported upon request such as LSZH, round-section construction.

 

Mechanical Design Diagram (mm)

The EDR module mechanical specifications are compliant with the QSFP28 transceiver module specifications (as defined in SFF-8661), substituting the MPO12 receptacle with a fiber optics cable connecting both ends.

 

General Product Characteristics

Form Parameter Value Unit Notes
Module Form Factor QSFP28
Number of Lanes 4 Tx and 4 Rx
 

Maximum Aggregate Data Rate

 

 

103.12

 

 

Gb/s

112.02 Max. Aggregate Data Rate with BER 10-6 (per 32G Fibre

Channel)

Maximum Data Rate per Lane  

25.78

 

Gb/s

28.05 Max. Data Rate per Lane with BER 10-6 (per 32G Fibre

Channel)

Standard Cable Lengths 1, 3, 5, 10, 15, 20, 30, 50,

100

meters Other lengths may be available

upon request

 

 

 

Protocols Supported

Typical applications include InfiniBand QDR/FDR/EDR,

10/25/40G/100G Ethernet,

4/8/16/32G Fibre Channel, SAS3

Electrical Interface and 38-pin edge connector Pin-out as defined by SFF-8679

 

Pin-out
 

 

Standard Optical Cable Type

 

Multimode round fiber cable, plenum-rated

OFNP. Low Smoke Zero Halogen (LSZH), round fiber cable also available
Maximum Power

Consumption per End

3.5 (retimed Tx)

2.5 (unretimed)

Watts Varies with output voltage swing

and pre-emphasis settings

Management Interface Serial, I2C-based, 450

kHz maximum frequency

As defined by SFF-8636

 

Data Rate Specifications Symbol Min Typ Max Unit Ref.
Bit Rate per Lane BR 10.00 25.78 28.05 Gb/sec 1
Bit Error Ratio BER 10-12 2

Notes:

  1. Supports InfiniBand QDR/FDR/EDR, 10/25/40/100 Gigabit Ethernet and 8/16/32G Fibre Channel applications but at 28.05 Gb/sec BER is limited to 10-6.
  2. Tested with a PRBS 231-1 test pattern.

 

Absolute Maximum Ratings

Form Parameter Symbol Min Typ Max Unit Ref.
 

Maximum Supply Voltage

Vcc1, VccTx,

VccRx

 

-0.5

 

3.6

 

V

Storage Temperature TS -40 85 °C 1
Case Operating Temperature TOP 0 75 °C
Relative Humidity RH 0 85 % 2

Notes:

  1. Assumes no mechanical load force on the unit. Ensuring no mechanical load force requires a cable bend radius of >105 mm within 100 mm of either cable end module and >60 mm on the rest of the cable.
  2. Non-condensing.

 

Electrical Characteristics(EOL, TOP = 0 to 70°C, VCC = 3.135 to 3.465 Volts)

NOTE: The EDR module requires an electrical connector compliant with SFF-8662 or

SFF-8672 be used on the host board to guarantee its electrical interface specification. Please check with your connector supplier.

 

Parameter Symbol Min Typ Max Unit Ref.
 

Supply Voltage

Vcc1, VccTx,

VccRx

 

3.15

 

3.46

 

V

Supply Current Icc 1010 mA
Module total power P 3.5 W 1,2
Link Turn-On Time
Transmit turn-on time 2000 ms 3
Input electrical specifications (per Lane)
Differential Voltage pk-pk 900 mV
Common Mode Noise RMS 17.5 mV
Differential Termination

Resistance Mismatch

10 %
Differential Return Loss SDD22  

 

Per OIF CEI-28G-VSR and CAUI-4

requirements

dB
Common Mode to Differential

conversion and Differential to Common Mode Conversion

SDC22, SCD22  

dB

Common Mode Return Loss SCC22 dB
Transition Time, 20 to 80% Tr, Tf 10 ps
Common Mode Voltage Vcm -0.3 2.8 V
Eye Width at 1E-15 probability EW15 0.46 UI
Eye Height at 1E-15

probability

EH15 94 mV
Output electrical specifications (per Lane)
Differential Voltage pk-pk 900 mV
Common Mode Voltage Vcm -350 2850 mV
Common Mode Noise RMS 17.5 mV
Differential Termination

Resistance Mismatch

10 %
Differential Return Loss SDD22  

Per OIF CEI-28G-VSR and CAUI-4

requirements

dB
Common Mode to Differential conversion and Differential to

Common Mode Conversion

SDC22, SCD22
Common Mode Return Loss SCC22 -2 dB
Transition Time, 20 to 80% Tr, Tf 9.5 ps
Vertical Eye Closure VEC 5.5 dB
Eye Width at 1E-15 probability EW15 0.57 UI
Eye Height at 1E-15

probability

EH15 228 mV

 

Notes:

  1. Maximum total power value is specified across the full temperature and voltage range.
  2. Settable in various discrete steps via the I2C interface.
  3. From power-on and end of any fault conditions

 

Applications

  • Infiniband 4xEDR, 4xFDR, 4xQDR
  • 10/25/40/100G Ethernet
  • 4G/8G/16G/32G Fibre Channel
  • SAS3
  • Proprietary HPC Interconnections

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