Finisar Corporation – 16-Janunary-2016 Rev. A1 Page 1
Product Specification
Quadwire® 40 Gb/s Parallel Active Optical Cable
FCCx410QD3Cyy
PRODUCT FEATURES
• Four-channel full-duplex active
optical cable
• Multirate capability: 1.06Gb/s to
10.5Gb/s per channel
• Complies with QSFP MSA high-
density form factor
• Round, plenum-rated (OFNP) and
riser-rated (OFNR), low smoke
zero halogen (LSZH) cables
• Connectivity Diagnostics
®
ready
• Rigid pull-tab with embedded LED
light
• Hot Pluggable
• Low power dissipation: <1.3W per
cable end
• Commercial operating case
temperature range: 0ºC to 70ºC
• RoHS-6 Compliant
APPLICATIONS
• InfiniBand QDR
• 40G Ethernet
• 4G/8G/10G Fibre Channel
• HPC Interconnections
• SATA/SAS3
• PCIe3
PRODUCT SELECTION (Standard Lengths*)
FCCx410QD3Cyy
x: N = Plenum-rated (OFNP) cable jacket
R = Riser-rated (OFNR) low smoke zero
halogen (LSZH) cable jacket
yy*:
03 = 3m length
05 = 5m length
10 = 10m length
15 = 15m length
20 = 20m length
30 = 30m length
50 = 50m length
X0 = 100m length
*Please contact Finisar for availability of additional cable lengths.
FCCx410QD3Cxx Product Specification – July 2016
Finisar Corporation – 16-Janunary-2016 Rev. A1 Page 2
I. Pin Descriptions
Figure 1 – QSFP MSA-compliant 38-pin connector
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 +3.3 V 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
25 Rx4p Receiver Non-Inverted Data Output
26 GND Ground 1
FCCx410QD3Cxx Product Specification – July 2016
Finisar Corporation – 16-Janunary-2016 Rev. A1 Page 3
27 ModPrsL Module Present
28 IntL Interrupt
29 Vcc Tx +3.3 V Power supply transmitter
30 Vcc1 +3.3 V 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
Notes
1. Circuit ground is internally isolated from chassis ground.
II. General Product Characteristics
Parameter Value Unit Notes
Module Form Factor QSFP
Number of Lanes 4 Tx and 4 Rx
Maximum Aggregate Data Rate 42.0 Gb/s
Maximum Data Rate per Lane 10.5 Gb/s
Standard Cable Lengths 3, 5, 10, 15, 20, 30, 50, 100 meters Other lengths may be available
upon request (<100)
Protocols Supported Typical applications include
InfiniBand, Fibre Channel,
40G Ethernet, SATA/SAS3
Electrical Interface and Pin-out 38-pin edge connector Pin-out as defined by the
QSFP MSA
Standard Optical Cable Type Multimode fiber cable
assembly
Maximum Power Consumption
per End
1.3 Watts Varies with output voltage swing
and pre-emphasis settings
(see Figure 5)
Management Interface Serial, I2C-based, 400 kHz
maximum frequency
As defined by the QSFP MSA
Data Rate Specifications
Symbol
Min
Typ
Max
Units
Ref.
Bit Rate per Lane BR 1000 10500 Mb/sec 1
Bit Error Ratio BER 10
-
12
2
Notes:
1. 1/10 Gigabit Ethernet and 1/2/4/8/10G Fibre Channel compatible.
2. Tested with a PRBS 2
31
-1 test pattern.
FCCx410QD3Cxx Product Specification – July 2016
Finisar Corporation – 16-Janunary-2016 Rev. A1 Page 4
III. Connectivity Diagnostics
®
Features
The FCCx410QD3Cxx Quadwire
®
are equipped with Finisar’s Connectivity
Diagnostics
®
, a technology solution enabling real-time performance monitoring and
troubleshooting. The following two features are implemented by default:
LynkFind
™
By manually pushing in the pull tab, both near- and far-end pull tabs will rapidly blink.
To reset the pull tab light off, simply push in the pull tab again on either end of the AOC.
LynkGuardian
™
If a digital diagnostic monitor (DDM) triggers an alarm or warning event, or upon a
transmitter fault or a receiver loss of signal, the pull tabs of both ends will light up as
follows: the near end (where the alarm originates) pull tab will blink slowly, while the far
end pull tab will glow solid. Both pull tab lights will alternate blinking and solid in case
DDM events occur on both AOCs ends.
IV. Absolute Maximum Ratings
Parameter Symbol Min Typ Max Unit Ref.
Maximum Supply Voltage Vcc1,
VccTx,
VccRx
-0.5 3.6 V
Storage Temperature T
S
-40 85
°
C 1
Case Operating Temperature T
OP
0 70
°
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.
V. Electrical Characteristics
(T
OP
= 0 to 70°
°°
°C, V
CC
= 3.3 ± 5% Volts)
Parameter Symbol Min Typ Max Unit Ref.
Supply Voltage Vcc1,
VccTx,
VccRx
3.15 3.45 V
Supply Current Icc 350 mA
Link Turn-On Time
Transmit Turn-On Time 2000 ms 1
Transmitter (per Lane)
Differential data input swing Vin,pp
180 1200 mVpp 2
Differential input threshold 50 mV
Receiver (per Lane)
Differential data output swing Vout,pp
0 800 mVpp 3,4
Power Supply Ripple Tolerance PSR
50 mVpp
FCCx410QD3Cxx Product Specification – July 2016
Finisar Corporation – 16-Janunary-2016 Rev. A1 Page 5
Notes:
1. From power-on and end of any fault conditions.
2. AC coupled internally. See Figure 2 for input eye mask requirements. Self-biasing 100Ω differential
input.
3. AC coupled with 100Ω differential output impedance. See Figure 3 for output eye mask.
4. Settable in 4 discrete steps. See Figure 5 for Vo settings
VI. High-Speed Electrical Characteristics per Lane
(T
OP
= 0 to 70°
°°
°C, V
CC
= 3.3 ± 5% Volts)
Parameter –Inputs Symbol
Conditions Min Typ Max
Units Ref.
Reference Differential Input
Impedance Z
d
100 Ω
Termination Mismatch ∆Z
M
5 % 1
Input AC Common Mode Voltage
25 mV
(RMS)
Differential Input Return Loss SDD11 0.01-4.1 GHz dB 2
4.1 – 11.1 GHz dB 3
Differential to Common Mode
Loss SCD11
0.01-11.1 GHz
-10 dB
Jitter Tolerance (Total) TJ 0.40 UI
Jitter Tolerance (Deterministic) DJ 0.15 UI
Notes:
1. See SFF-8431 Rev 3.2 (SFP+) section D.15 Termination Mismatch for definition & test recommendations
2. Reflection coefficient given by equation SDD11(dB)< -12+2*SQRT(f), with f in GHz. See Figure 4.
3. Reflection coefficient given by equation SDD11(dB)< -6.3+13Log10(f/5.5), with f in GHz. See Figure 4.
-500
-400
-300
-200
-100
0
100
200
300
400
500
0 0.2 0.4 0.6 0.8 1
UI
Vdiff (mV)
Figure 2 – Transmitter Input Differential Signal Mask
FCCx410QD3Cxx Product Specification – July 2016
Finisar Corporation – 16-Janunary-2016 Rev. A1 Page 6
Parameter –Outputs Symbol
Conditions Min
Typ
Max
Units Ref.
Reference Differential Output Impedance Z
d
100
Ω
Termination Mismatch ∆Z
M
5 %
Output AC Common Mode Voltage 15 mV
RMS
Output Rise and Fall time (20% to 80%) t
RH
, t
FH
24 ps
Differential Output Return Loss SDD22 0.01-4.1 GHz dB 1
4.1 – 11.1 GHz dB 2
Common Mode Output Return Loss SCC22 0.01-2.5 GHz dB 3
2.5-11.1 GHz -3 dB
Notes:
1.
Reflection coefficient given by equation SDD22(dB)< -12+2*SQRT(f), with f in GHz. See Figure 4.
2.
Reflection coefficient given by equation SDD22(dB)< -6.3+13Log10(f/5.5), with f in GHz. See Figure 4.
3.
Reflection coefficient given by equation SCC22(dB)< -7+1.6*f, with f in GHz.
Receiver Output Jitter Specification
Symbol
Min
Typ
Max
Units Ref.
Deterministic Jitter DJ
OUT
0.38 UI 1
Total Jitter TJ
OUT
0.64 UI 1
Notes:
1. When transmitter input jitter specs are met.
Other Informational Specifications
(not tested) Symbol Min Typ Max Units Ref.
Max Bit Rate NRZ B 10.5 Gb/s
Low Frequency 3dB Cutoff f
c
175 kHz
Ch / Ch crosstalk -26 dB
Output Pre-emphasis settings
(user selectable) PE
0 mV
125 mV
175 mV
325 mV
Pre-Emphasis pulse width 60 90 ps
Channel-to-channel skew 24 ns 1
Latency 400 495 600 ns 1
Digital clock to data delay 25 ns
Digital output rise/fall times 5 ns
Digital input / output Cap 1 pF
Digital input logic High 2 V
Digital input logic Low 1 V
ESD Signal pads 500 V 2
ESD (other pads) 2 kV 2
Notes:
1. For worst-case 100m length.
2. Human Body Model (HBM)
FCCx410QD3Cxx Product Specification – July 2016
Finisar Corporation – 16-Janunary-2016 Rev. A1 Page 7
-500
-400
-300
-200
-100
0
100
200
300
400
500
0 0.2 0.4 0.6 0.8 1
UI
Vdiff (mV)
Figure 3 – Receiver Output Differential Signal Mask
-20
-18
-16
-14
-12
-10
-8
-6
-4
-2
0
0 1 2 3 4 5 6 7 8 9 10 11 12
GHz
dB
Figure 4 – Maximum Transmitter Input and Receiver Output Differential Return Loss
FCCx410QD3Cxx Product Specification – July 2016
Finisar Corporation – 16-Janunary-2016 Rev. A1 Page 8
Power (mW) Pre-Emphasis into 100ohms (mV)
0 125 175 325
Vo (mV)
0 599
317 751 935 971 1075
422 787 971 1007 1111
739 883 1055 1103 1190
Figure 5 – Power Dissipation (mW, maximum) vs. Rx Output Conditions
VII. Memory Map and Control Registers
Compatible with SFF-8436.
2
Please see Finisar Application Note AN-2075: Quadwire
®
EEPROM Mapping
3
for details.
VIII. Environmental Specifications
Finisar Quadwire
®
active optical cables have an operating temperature range from 0°C to
+70°C case temperature.
Environmental Specifications Symbol
Min Typ Max Units Ref.
Case Operating Temperature T
op
0 70 °C
Storage Temperature T
sto
-40 85 °C 1
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.
IX. Regulatory Compliance
Finisar Quadwire
®
active optical cables are RoHS-6 Compliant. Copies of certificates are
available at Finisar Corporation upon request.
Quadwire
®
active optical cables are Class 1 laser eye safety compliant per IEC 60825-1.
The round cable jacket is available in both plenum-rated (OFNP) and riser-rated (OFNR)
low smoke zero-halogen (LSZH).
FCCx410QD3Cxx Product Specification – July 2016
Finisar Corporation – 16-Janunary-2016 Rev. A1 Page 9
X. Mechanical Specifications
The Quadwire
®
mechanical specifications are based on QSFP transceiver module
specifications, substituting the MPO connectors with a cable connecting both ends. Rigid
pull-tab is opaque in non-illuminated mode and amber in illuminated mode.
Figure 5 – Quadwire
®
with Connectivity Diagnostics
®
mechanical drawing
Cable Mechanical Specifications Min Typical Max Units
Minimum bend radius 60
mm
Minimum bend radius within 100
mm of the Quadwire® module end 105 mm
Diameter 3.0 3.3 3.6 mm
Insertion, Extraction and Retention
Forces
Min Max Units Notes
Cable Proof (Tensile) Test (0
º
) 44.0 Newtons
Cable Proof (Tensile) Test (90
º
) 33.0 Newtons
Impact Test 8 Cycles 1.5m drop
Flex Test 8.9 Newtons
Twist Test 13.0 Newtons
Module retention 90 N/A Newtons No damage below 90N
Host Connector Retention 180 N/A Newtons No damage below 180N
FCCx410QD3Cxx Product Specification – July 2016
Finisar Corporation – 16-Janunary-2016 Rev. A1 Page 10
Figure 6 – Quadwire® production-level product label
XI. References
1. INF-8438i – Specification for QSFP (Quad Small Formfactor Pluggable)
Transceiver, Rev 1.0, November 2006
2. SFF-8636 – Specification for QSFP+ Copper and Optical Transceiver, Rev 2.7,
January 2016
3. Application Note AN-2075: Quadwire
®
EEPROM Mapping, Rev E
4. Application Note AN-2158: Finisar’s Connectivity Diagnostics
™
for Active Optical
Cables
XII. For More Information
Finisar Corporation
1389 Moffett Park Drive
Sunnyvale, CA 94089-1133
Tel. 1-408-548-1000
Fax 1-408-541-6138
sales@finisar.com
www.finisar.com
