400G QSFP-DD Optical Transceiver Series

EN-QDD-LR4AT A GLANCE
E.C.I. NETWORKS’s QSFP-DD or QSFP56-DD transceiver module is designed for use in 200/400 Gigabit
Ethernet links up 10km single mode fiber. QSFP-DD ports is mechanically and electrically compatible withQSFP28 and QSFP+. The module is hot pluggable when mated to a compliant 76-pin connector thatdelivers a supply voltage of 3.3 V.
EN-QDD-LR4 is a 400G Quad Small Form Factor Pluggable-double density (QSFP-DD) optical module
designed for 2 and 10km km optical communication applications. The module converts 8 channels of50Gb/s (PAM4) electrical input data to 4 channels of CWDM optical signals and multiplexes them into asingle channel for 400Gb/s optical transmission. Reversely, on the receiver side, the module optically demultiplexes a 400Gb/s optical input into 4 channels of CWDM optical signals and converts them to 8channels of 50Gb/s (PAM4) electrical output data.
The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm as members of theCWDM wavelength grid defined in ITU-T G.694.2. It contains a duplex LC connector for the opticalinterface and a 76-pin connector for the electrical interface.
PRODUCT FEATURES◆◆◆◆◆◆◆◆◆◆◆◆QSFP-DD MSA compliant
4 CWDM lanes MUX/DEMUX design
Duplex LC connector
EN-QDD-LR4 Up to 10km transmission on single mode fiber(SMF) with FEC
8x53.125Gb/s electrical interface (400GAUI-8)
Data Rate 106.25Gbps (PAM4) per channel.
Maximum power consumption 12W
Duplex LC connector
RoHS compliant
I2C interface with integrated DDM
EN-QDD-LR4 100G Lambda MSA 100G-LR specification compliant
Commercial operating temperature: 0 to +70 °C

APPLICATIONS EXAMPLES
Usually used DCI within data centers, or across data centers for up to 10km use.

@E.C.I. NETWORKS INC. CONFIDENTIAL AND PROPRIETARY

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400G QSFP-DD Optical Transceiver Series

EN-QDD-LR4
EN-QDD-LR4 Direct Connectivity
The 400G-FR4/LR4 modules use duplex LC fiberconnectors – the same connectors that are used on
existing 100G and 40G QSFPs that use duplex SMF (e.g.
100G-CWDM4, 40G-LR4 etc).

Ordering Information
Part NumberDescription

Data Rate

EN-QDD-LR4-xx

400GBASE-FR4 transceiver, up to 10km 400G
over duplex SMF, LC Connector, EML
CWDM4WavelengthDistance

EML CWDM4
1271nm/1291n
m/1311nm/133
1nm

10 KM

Product Selection
xx: Refers to vendor compatibility
I: I refers to Industrial Temperature where applicable
Per example:
EN-SFP10G-LR-EZ refers to Commercial Temperature, and compatible with Evertz, EN-SFP10GIDL-JREX
refers to Industrial Temperature, and compatible with Juniper EX Series** Please note pricing is same for most of the NEMs including Cisco, Juniper, F5, Fortinet, except HP,Evertz. There is an additional charge
Compatibility; Tested and ProvenProven Compatibility and Interoperability with; TBD

Compliance
All our products come with Built-in digital diagnostic functions DDM Compliant with SFF-8472 Rev12 andCompliant with the MSA SFF SPECIFIACTIONS.

@E.C.I. NETWORKS INC. CONFIDENTIAL AND PROPRIETARY

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400G QSFP-DD Optical Transceiver Series

EN-QDD-LR4ABSOLUTE MAXIMUM RATING
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These
are absolute stress ratings only. Functional operation of the device is not implied at these or any otherconditions in excess of those given in the operational sections of the data sheet. Exposure to absolute
maximum ratings for extended periods can adversely affect device reliability.
Parameter

SymbolMinimum

Maximum

Unit

Storage Temperature

TS-4085oRelative Humidity

RH

085%

Supply Voltage

VCC

-0.5

3.6

VC

Recommended Operating Conditions
Parameter

SymbolMin

TypMaxUnit

Operating Case Temperature

TC02570o

Supply Voltage

VCC

3.135

3.33.465

V

Power Dissipation

Pd-12W

Data Rate, each Lane

26.5625

Data Rate Accuracy-100

Post-FEC Bit Error Ratio@E.C.I. NETWORKS INC. CONFIDENTIAL AND PROPRIETARY

GBd100ppm

2.4x10-4
1x10-12Pre-FEC Bit Error Ratio
Link Distance

C

D0.5

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2000m(FR4) or
10000
(LR4)

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400G QSFP-DD Optical Transceiver Series

EN-QDD-LR4
Optical Characteristics
EN-QDD-LR4
Parameter
Wavelength Assignment

Symbol
L0
L1
L2

Min
1264.51284.51304.5

Typical1271
1291
1311

Max
1277.51297.51317.5

Units
nm
nmnm

L31324.5

1331

1337.5nm

Transmitter
Data Rate, each Lane
Modulation Format
Side-mode Suppression Ratio

SMSR

53.125 ± 100 ppm
PAM430Total Average Launch Power
Average Launch Power, each Lane

PT
PAVG

Outer Optical Modulation
Amplitude (OMAouter), each Lane

POMANotes

GBddB

Modulated-1.410
4.5dBm
dBm

10.7

4.7

dBm

2

Launch Power in OMAouter minus
TDECQ, each Lane

-0.7

dB

For ER
≥4.5dB

Launch Power in OMAouter minus
TDECQ, each Lane

-0.6dBFor ER<4.5dB

Transmitter and Dispersion Eye Clouser TDECQ
for PAM4, each LaneExtinction Ratio

ER3.4
3.5

Difference in Launch Power between any
Two Lanes(OMAouter)

dB
dBdB

4

RIN17.1OMARIN-136

dB/Hz

Optical Return Loss Tolerance

TOL

15.6

dB

Transmitter Reflectance

TR-26

dB

@E.C.I. NETWORKS INC. CONFIDENTIAL AND PROPRIETARY

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400G QSFP-DD Optical Transceiver Series

EN-QDD-LR4Average Launch Power
Transmitter, each LaneofOFF Poff

-20

dBm

Receiver
Data Rate, each Lane
Modulation Format

53.125 ± 100 ppm
PAM4GBd

5.5
-7.7

4.5

dBm
dBm

Receive Power (OMAouter), each Lane

4.7

dBm

Difference in Receiver Power between
any Two Lanes (OMAouter)

4.1

dB

Receiver Sensitivity (OMAouter), each SEN
Lane-6.6dBm

Receiver Reflectance

R-26

dB

LOS Assert

LOSA

LOS De-assert

LOSD

LOS Hysteresis

LOSH

Damage Threshold, each Lane
Average Receive Power, each Lane

THd

Stressed Eye Closure for PAM4 (SECQ),
Lane under Test
OMAouter of each Aggressor Lane

@E.C.I. NETWORKS INC. CONFIDENTIAL AND PROPRIETARY-30dBm
-12

0.5

dB

0.9

3.4
1.5Page | 5dBm

dBdBm

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400G QSFP-DD Optical Transceiver Series

EN-QDD-LR4
Mechanical specifications

Regulatory ComplianceFeatureReference

Performance

IEC/EN 61000-4-2
Electrostatic discharge（ESD）
Electromagnetic
Interference FCC Part 15 Class B EN 55022(EMI)
Class B (CISPR 22A)
FDA 21CFR 1040.10, 1040.11
Laser Eye Safety
IEC/EN 60825-1, 2Component Recognition
IEC/EN 60950, UL

Compatible with standards

ROHS

2002/95/EC

Compatible with standards

EMC

EN61000-3

Compatible with standards@E.C.I. NETWORKS INC. CONFIDENTIAL AND PROPRIETARY

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Compatible with standards
Class 1 laser productCompatible with standards

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400G QSFP-DD Optical Transceiver Series

EN-QDD-LR4
Notice:ECI Networks reserves the right to make changes to or discontinue any optical link product or service
identified in this publication, without notice, in order to improve design and/or performance. Applications
that are described herein for any of the optical link products are for illustrative purposes only.
For further information

Office: 1-800-967-1672
Fax : 1-855-201-7283
mailto:sales@ecin.ca@E.C.I. NETWORKS INC. CONFIDENTIAL AND PROPRIETARY

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