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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:

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.
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:

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.
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	Per OIF CEI-28G-VSR and CAUI-4 requirements
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:

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

Applications