PRELIMINARY Product Specification
100G Quadwire® QSFP28 Active Optical Cable
FCBN425QB1Cxx
PRODUCT FEATURES
Four-channel full-duplex active
optical cable
Multirate capability: 10 Gb/s to 28
Gb/s per channel
QSFP28 high-density form factor
Reliable VCSEL array technology
using multimode fiber
Round OFNP-rated cable
Hot Pluggable
Low power dissipation: <3.5W per
cable end (<2.5W with CDRs off)
Commercial operating case
temperature range: 0ºC to 70ºC
APPLICATIONS
RoHS-6 Compliant
Infiniband 4xEDR, 4xFDR, 4xQDR
10/25/40/100G Ethernet
4G/8G/16G/32G Fibre Channel
SAS3
Proprietary HPC Interconnections
Compliant to RoHS Directive 2011/65/EU
PRODUCT SELECTION (Standard Lengths*)
FCBN425QB1C01
FCBN425QB1C03
FCBN425QB1C05
FCBN425QB1C10
FCBN425QB1C15
FCBN425QB1C20
FCBN425QB1C30
FCBN425QB1C50
FCBN425QB1CX0
1-meter cable
3-meter cable
5-meter cable
10-meter cable
15-meter cable
20-meter cable
30-meter cable
50-meter cable
100-meter cable
*For availability of additional cable lengths or cable types, please contact Finisar.
Finisar Corporation – 8-Sep-15 Rev A7 Preliminary
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FCBN425QB1Cxx PRELIMINARY Product Specification – September 2015
I.
Pin Descriptions
Figure 1 – QSFP28-compliant 38-pin connector (per SFF-8679)
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Symbol
GND
Tx2n
Tx2p
GND
Tx4n
Tx4p
GND
ModSelL
ResetL
Vcc Rx
SCL
SDA
GND
Rx3p
Rx3n
GND
Rx1p
Rx1n
GND
GND
Rx2n
Rx2p
GND
Rx4n
Rx4p
Name/Description
Ground
Transmitter Inverted Data Input
Transmitter Non-Inverted Data Input
Ground
Transmitter Inverted Data Input
Transmitter Non-Inverted Data Input
Ground
Module Select
Module Reset
+3.3 V Power supply receiver
2-wire serial interface clock
2-wire serial interface data
Ground
Receiver Non-Inverted Data Output
Receiver Inverted Data Output
Ground
Receiver Non-Inverted Data Output
Receiver Inverted Data Output
Ground
Ground
Receiver Inverted Data Output
Receiver Non-Inverted Data Output
Ground
Receiver Inverted Data Output
Receiver Non-Inverted Data Output
Finisar Corporation – 8-Sep-15 Rev A7 Preliminary
Notes
1
1
1
1
1
1
1
1
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FCBN425QB1Cxx PRELIMINARY Product Specification – September 2015
26
27
28
29
30
31
32
33
34
35
36
37
38
GND
ModPrsL
IntL
Vcc Tx
Vcc1
LPMode
GND
Tx3p
Tx3n
GND
Tx1p
Tx1n
GND
Ground
Module Present
Interrupt
+3.3 V Power supply transmitter
+3.3 V Power Supply
Low Power Mode
Ground
Transmitter Non-Inverted Data Input
Transmitter Inverted Data Input
Ground
Transmitter Non-Inverted Data Input
Transmitter Inverted Data Input
Ground
1
1
1
1
Notes
1. Circuit ground is internally isolated from chassis ground.
II.
General Product Characteristics
Parameter
Module Form Factor
Number of Lanes
Maximum Aggregate Data Rate
Maximum Data Rate per Lane
Standard Cable Lengths
Protocols Supported
Electrical Interface and Pin-out
Standard Optical Cable Type
Maximum Power Consumption
per End
Management Interface
Data Rate Specifications
Bit Rate per Lane
Bit Error Ratio
Value
QSFP28
4 Tx and 4 Rx
103.125
25.78125
1, 3, 5, 10, 15, 20, 30, 50,
100
Typical applications include
InfiniBand QDR/FDR/EDR,
10/25/40G/100G Ethernet,
4/8/16/32G Fibre Channel,
SAS3
38-pin edge connector
Multimode round fiber
cable, plenum-rated
3.5 (retimed Tx)
2.5 (unretimed)
Serial, I2C-based, 450 kHz
maximum frequency
Symbol
BR
BER
Min
10.00000
Unit
Notes
As defined by SFF-8661
Gb/s
Gb/s
meters
Other lengths may be available
upon request
Pin-out as defined by SFF-8679
OFNP
Watts
Varies with output voltage swing
and pre-emphasis settings
As defined by SFF-8636
Typ
25.781.25
Max
28.05
10-12
Units
Gb/sec
Ref.
1
2
Notes:
1. Supports InfiniBand QDR/FDR/EDR, 10/25/40/100 Gigabit Ethernet and 8/16/32G Fibre Channel
applications.
2. Tested with a PRBS 231-1 test pattern.
Finisar Corporation – 8-Sep-15 Rev A7 Preliminary
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FCBN425QB1Cxx PRELIMINARY Product Specification – September 2015
III.
Absolute Maximum Ratings
Parameter
Maximum Supply Voltage
Storage Temperature
Case Operating Temperature
Relative Humidity
Symbol
Vcc1,
VccTx,
VccRx
TS
TOP
RH
Min
-0.5
-40
0
0
Typ
Max
3.6
Unit
V
Ref.
85
70
85
C
C
%
1
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.
IV.
Electrical Characteristics (TOP = 0 to 70C, VCC = 3.3 ± 5% Volts)
NOTE: The Quadwire EDR 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,
3.15
3.45
V
VccRx
Supply Current
Icc
TBD
mA
Power Dissipation per cable end
P
3.5
W
1, 2
Link Turn-On Time
Transmit turn-on time
2000
ms
3
Transmitter (per Lane)
Single ended input voltage tolerance
VinT
V
Differential data input swing
Vin,pp
mVpp
Differential input threshold
mV
AC common mode input voltage tolerance
mV
(RMS)
Per OIF CEI-28G-VSR
Differential input return loss
dB
and CAUI-4
J2 Jitter Tolerance
Jt2
UI
4
requirements
J9 Jitter Tolerance
Jt9
UI
4
Data Dependent Pulse Width Shrinkage
DDPWS
UI
Eye mask coordinates {X1, X2
UI
Y1, Y2}
mV
Receiver (per Lane)
Single-ended output voltage
V
Differential data output swing
Vout,pp
mVpp
AC common mode output voltage (RMS)
mV
Termination mismatch at 1 MHx
%
Differential output return loss
dB
Per OIF CEI-28G-VSR
Common mode output return loss
dB
and CAUI-4
Output transition time, 20% to 80%
ps
requirements
J2 Jitter output
Jo2
UI
4
J9 Jitter output
Jo9
UI
4
Eye mask coordinates {X1, X2
UI
Y1, Y2}
mV
Power Supply Ripple Tolerance
PSR
mVpp
Finisar Corporation – 8-Sep-15 Rev A7 Preliminary
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FCBN425QB1Cxx PRELIMINARY Product Specification – September 2015
Notes:
1.
2.
3.
4.
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.
For jitter performance depending on CDR configuration, see below
Jitter with TX and RX CDRs enabled
Jitter (Measured at TP1)
Symbol
Total Jitter Input
Max
Unit
Ref
iTLj pp
0.62
UI
1,2,3,5
Deterministic Jitter Input
iDLj pp
0.42
UI
1,2,3,5
J2 Jitter Tolerance
iLJ2 pp
0.5
UI
2,3,5
J9 Jitter Tolerance
iLJ9 pp
0.58
UI
2,3,5
Jitter (Measured at TP4)
Symbol
Max
Unit
Ref
Total Jitter Output
oTLj pp
0.45
UI
1,3,4,5
Deterministic Jitter Output
oDLj pp
0.3
UI
1,3,4,5
J2 Jitter
oLJ2 pp
0.34
UI
3,4,5
J9 Jitter
oLJ9 pp
0.43
UI
3,4,5
Notes:
1.
2.
3.
4.
5.
Min
Min
Typ
Typ
28Gbps PRBS2^31, BER 10^-12.
Measured at TP1, minimum input voltage.
All channels are on for worst condition crosstalk.
Measured at TP4 with iTLj= 0.62UI, iDLj= 0.42UI at TP1, max temp.
These jitter values provided are for information only, they do not include the noise impact of the test
O:E receiver required to measure them.
Jitter with TX and RX CDRs in bypass
Jitter (Measured at TP1)
Symbol
Total Jitter Input
Deterministic Jitter Input
Max
Unit
Ref
iTLj pp
0.25
UI
1,2,3,5
0.05
UI
1,2,3,5
Data Depended Pulse Width Shrinkage
iDLj pp
DDPWS
pp
0.01
UI
1,2,3,5
J2 Jitter Tolerance
iLJ2 pp
0.12
UI
1,2,3,5
J9 Jitter Tolerance
iLJ9 pp
0.23
UI
1,2,3,5
Finisar Corporation – 8-Sep-15 Rev A7 Preliminary
Min
Typ
Page 5
FCBN425QB1Cxx PRELIMINARY Product Specification – September 2015
Jitter (Measured at TP4)
Symbol
Total Jitter Output
Max
Unit
Ref
oTLj pp
0.82
UI
1,3,4,5
Deterministic Jitter Output
oDLj pp
0.42
UI
1,3,4,5
Data Depended Pulse Width Shrinkage
oLJ2 pp
0.36
UI
1,2,3,5
J2 Jitter
DDPWS
0.45
UI
1,3,4,5
J9 Jitter
oLJ2 pp
0.72
UI
3,4,5
Notes:
1.
2.
3.
4.
5.
Min
Typ
28Gbps PRBS2^31, BER 10^-12.
Measured at TP1, minimum input voltage.
All channels are on for worst condition crosstalk.
Measured at TP4 with iTLj=.25UI, iDLj=.05UI at TP1, max temp.
These jitter values provided are for information only, they do not include the noise impact of the test
O:E receiver required to measure them.
Jitter with TX CDR enabled and RX CDR in bypass
Jitter (Measured at TP1)
Symbol
Min
Typ
Max
Unit
Ref
Total Jitter Input
iTLj pp
0.62
UI
1,2,3,5
Deterministic Jitter Input
iDLj pp
0.42
UI
1,2,3,5
J2 Jitter Tolerance
iLJ2 pp
0.5
UI
2,3,5
J9 Jitter Tolerance
iLJ9 pp
0.58
UI
2,3,5
Jitter (Measured at TP4)
Symbol
Max
Unit
Ref
Min
Typ
Total Jitter Output
oTLj pp
0.82
UI
1,3,4,5
Deterministic Jitter Output
oDLj pp
0.42
UI
1,3,4,5
Data Depended Pulse Width Shrinkage
oLJ2 pp
0.36
UI
1,2,3,5
J2 Jitter
DDPWS
0.45
UI
1,3,4,5
J9 Jitter
oLJ2 pp
0.72
UI
3,4,5
Notes:
1.
2.
3.
4.
5.
V.
28Gbps PRBS2^31, BER 10^-12.
Measured at TP1, minimum input voltage.
All channels are on for worst condition crosstalk.
Measured at TP4 with iTLj=.25UI, iDLj=.05UI at TP1, max temp.
These jitter values provided are for information only, they do not include the noise impact of the test
O:E receiver required to measure them.
Memory Map and Control Registers
Compatible with SFF-8636. More details to be provided in a future application note.
Finisar Corporation – 8-Sep-15 Rev A7 Preliminary
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FCBN425QB1Cxx PRELIMINARY Product Specification – September 2015
VI.
Environmental Specifications
Finisar Quadwire EDR active optical cables have an operating temperature range from 0°C
to +70°C case temperature.
Environmental Specifications
Case Operating Temperature
Storage Temperature
VII.
Symbol
Min
Top
Tsto
0
-10
Typ
Max
Units
70
70
°C
°C
Ref.
Regulatory Compliance
Finisar Quadwire EDR active optical cables are RoHS-6 Compliant. Copies of certificates
to be available at Finisar Corporation upon request.
Quadwire EDR active optical cables are Class 1 laser eye safety compliant per IEC 608251.
Standard fiber cable type is round-section construction, plenum-rated. Other cable types can
be supported upon request.
VIII. Mechanical Specifications
The Quadwire EDR 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.
Figure 2 – Quadwire EDR mechanical drawing (Preliminary)
Finisar Corporation – 8-Sep-15 Rev A7 Preliminary
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FCBN425QB1Cxx PRELIMINARY Product Specification – September 2015
Insertion, Extraction and Retention
Forces
Cable Proof (Tensile) Test (0º)
Cable Proof (Tensile) Test (90º)
Impact
Flex
Twist
Module retention
Host Connector Retention
Min
Max
Units
90
180
44.0
33.0
8
8.9
13.0
N/A
N/A
Newtons
Newtons
Cycles
Newtons
Newtons
Newtons
Newtons
Finisar Corporation – 8-Sep-15 Rev A7 Preliminary
Notes
1.5m drop
No damage below 90N
No damage below 180N
Page 8
FCBN425QB1Cxx PRELIMINARY Product Specification – September 2015
IX.
X.
References
1.
InfiniBand™ Architecture Release, Vol. 2 – Physical Specifications, Rev. 1.3,
November 2012.
2.
SFF-8665 – QSFP+ 28Gb/s 4X Pluggable Transceiver Solution (QSFP28), Rev 1.8,
May, 2013.
3.
SFF-8636 – Specification for Common Management Interface, Rev 1.7, January
2014.
4.
“CAUI-4” Retimed 4x25G electrical interface, to be defined by IEEE 802.3
5.
CEI-28G-VSR Implementation Agreement, per OIF 2012.290.00
6.
Directive 2011/65/EU of the European Council Parliament and of the Council, “on
the restriction of the use of certain hazardous substances in electrical and electronic
equipment.” Certain products may use one or more exemptions as allowed by the
Directive.
For More Information
Finisar Corporation
1389 Moffett Park Drive
Sunnyvale, CA 94089-1133
Tel. 1-408-548-1000
Fax 1-408-541-6138
[email protected]
www.finisar.com
Finisar Corporation – 8-Sep-15 Rev A7 Preliminary
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