Finisar
Product Specification
Quadwire® 40 Gb/s Parallel Active Optical Cable
FCBG410QB1Cxx
PRODUCT FEATURES
Four-channel full-duplex active
optical cable
Electrical interface only
Multirate capability: 1.06Gb/s to
10.5Gb/s per channel
Complies with QSFP MSA high-
density form factor
Reliable VCSEL array technology
using multimode fiber
Available in standard lengths of
3, 5, 10, 15, 20, 30, 50 and 100m*
Hot Pluggable
Flat, ribbonized, LSZH cable
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
PRODUCT SELECTION (Standard Lengths*)
FCBG410QB1C03
FCBG410QB1C05
FCBG410QB1C10
FCBG410QB1C15
FCBG410QB1C20
FCBG410QB1C30
FCBG410QB1C50
FCBG410QB1CX0
*For availability of additional cable lengths, please contact Finisar.
3-meter cable
5-meter cable
10-meter cable
15-meter cable
20-meter cable
30-meter cable
50-meter cable
100-meter cable
Finisar Corporation – 11-Dec-13 Rev B7
Page 1
FCBG410QB1Cxx Product Specification – December 2013
Finisar
I.
Pin Descriptions
Figure 1 – QSFP MSA-compliant 38-pin connector
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
Notes
1
1
1
1
1
1
1
1
Finisar Corporation – 11-Dec-13 Rev B7
Page 2
FCBG410QB1Cxx Product Specification – December 2013
Finisar
1
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
Notes
1. Circuit ground is internally isolated from chassis ground.
II.
General Product Characteristics
Value
QSFP
4 Tx and 4 Rx
42.0
10.5
3, 5, 10, 15, 20, 30, 50, 100
Typical applications include
Infiniband, Fibre Channel,
40G Ethernet, SATA/SAS3
38-pin edge connector
Multimode ribbon fiber
cable assembly, riser-rated
1.3
Unit
Notes
Parameter
Module Form Factor
Number of Lanes
Maximum Aggregate Data Rate
Maximum Data Rate per Lane
Standard Cable Lengths
Protocols Supported
Gb/s
Gb/s
meters
Up to 12.5 Gb/s can be supported.
Please contact Finisar.
Other lengths may be available
upon request (< 300m)
Electrical Interface and Pin-out
Standard Optical Cable Type
Maximum Power Consumption
per End
Management Interface
Pin-out as defined by the
QSFP MSA
Watts
Serial, I2C-based, 400 kHz
maximum frequency
Symbol
BR
BER
Min
1000
Typ
Varies with output voltage swing
and pre-emphasis settings
(see Figure 5)
As defined by the QSFP MSA
Data Rate Specifications
Bit Rate per Lane
Bit Error Ratio
Max
10500
10
-12
Units
Mb/sec
Ref.
1
2
Notes:
1. 1/10 Gigabit Ethernet and 1/2/4/8/10G Fibre Channel compliant.
2. Tested with a PRBS 2
31
-1 test pattern.
Finisar Corporation – 11-Dec-13 Rev B7
Page 3
FCBG410QB1Cxx Product Specification – December 2013
Finisar
III.
Absolute Maximum Ratings
Symbol
Vcc1,
VccTx,
VccRx
T
S
T
OP
RH
Min
-0.5
Typ
Max
3.6
Unit
V
C
C
%
Ref.
Parameter
Maximum Supply Voltage
Storage Temperature
Case Operating Temperature
Relative Humidity
-40
0
0
85
70
85
1
2
Notes:
1. Limited by the fiber cable jacket, not the active ends.
2. Non-condensing.
IV.
Electrical Characteristics
(T
OP
= 0 to 70C, V
CC
= 3.3 ± 5% Volts)
Symbol
Vcc1,
VccTx,
VccRx
Icc
Min
3.15
Typ
Max
3.45
Unit
V
Ref.
Parameter
Supply Voltage
Supply Current
Link Turn-On Time
Transmit Turn-On Time
Transmitter (per Lane)
Differential data input swing
Differential input threshold
Receiver (per Lane)
Differential data output swing
Power Supply Ripple Tolerance
350
2000
Vin,pp
180
50
1200
mA
ms
mVpp
mV
mVpp
mVpp
1
2
Vout,pp
PSR
0
50
800
3,4
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 100 differential
input.
3. AC coupled with 100 differential output impedance. See Figure 3 for output eye mask.
4. Settable in 4 discrete steps. See Figure 5 for Vo settings
Finisar Corporation – 11-Dec-13 Rev B7
Page 4
FCBG410QB1Cxx Product Specification – December 2013
Finisar
V.
High-Speed Electrical Characteristics per Lane
(T
OP
= 0 to 70C, V
CC
= 3.3 ± 5% Volts)
Parameter –Inputs
Reference Differential Input
Impedance
Termination Mismatch
Input AC Common Mode Voltage
Differential Input Return Loss
Differential to Common Mode
Loss
Jitter Tolerance (Total)
Jitter Tolerance (Deterministic)
Symbol
Z
d
ΔZ
M
Conditions
Min
Typ
100
Max
Units
Ω
%
mV
(RMS)
dB
dB
dB
UI
UI
Ref.
5
25
1
SDD11
SCD11
TJ
DJ
0.01-4.1 GHz
4.1 – 11.1 GHz
0.01-11.1 GHz
-10
0.40
0.15
2
3
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
Vdiff (mV)
200
100
0
-100
-200
-300
-400
-500
0
0.2
0.4
0.6
0.8
1
UI
Figure 2 – Transmitter Input Differential Signal Mask
Finisar Corporation – 11-Dec-13 Rev B7
Page 5
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