QSFP ER4 Optical Transceiver 40G 40KM
Short Description:
QSFP ER4 Optical Transceiver is a transceiver module designed for 40km optical communication applications. The design is compliant to 40GBASE-ER4 of the IEEE P802.3ba standard. The module converts 4 inputs channels (ch) of 10Gb/s electrical data to 4 CWDM optical signals, and multiplexes them into a single channel for 40Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 40Gb/s input into 4 CWDM channels signals, and converts them to 4 channel output electrical data. The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm as members of the CWDM wavelength grid…Description
Specification
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Description
QSFP ER4 Optical Transceiver is a transceiver module designed for 40km optical communication applications. The design is compliant to 40GBASE-ER4 of the IEEE P802.3ba standard. The module converts 4 inputs channels (ch) of 10Gb/s electrical data to 4 CWDM optical signals, and multiplexes them into a single channel for 40Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 40Gb/s input into 4 CWDM channels signals, and converts them to 4 channel output electrical data.
The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm as members of the CWDM wavelength grid defined in ITU-T G694.2. It contains a duplex LC connector for the optical interface and a 148-pin connector for the electrical interface. To minimize the optical dispersion in the long-haul system, single-mode fiber (SMF) has to be applied in this module.
The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP+ Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference.
QSFP ER4 Optical Transceiver FEATURES
- Duplex LC receptacle optical interface
- Single +3.3V power supply
- 4 CWDM lanes MUX/DEMUX design
- Up to 11.2Gb/s data rate per wavelength
- Up to 40km transmission on single mode fiber (SMF)
- Low power dissipation(Max:3.5W)
- Built in digital diagnostic function
- Operating case temperature range:0℃to 70℃
Standards
- Compliant with 40G Ethernet IEEE802.3ba and 40GBASE-ER4 Standard
- Compliant with QSFP+MSA hardware specifications
- Compliant with RoHS
Absolute Maximum Ratings
| Parameter | Symbol | Min. | Typ | Max. | Unit | Note |
| Storage Temperature | Tst | -40 | +85 | ºC | ||
| Supply Voltage | Vcc | -0.5 | +3.6 | V | ||
| Relative Humidity | Rh | +5 | +95 | % |
Recommended Operating Conditions
| Parameter | Symbol | Min. | Typ | Max. | Unit | Note |
| Operating Case Temperature | TC | 0 | – | +70 | °C | |
| Power Supply Voltage | VCC | 3.14 | 3.3 | 3.46 | V | |
| Data rate, each Lane | 10.3125 | 11.2 | Gb/s |
Specification
(tested under recommended operating conditions, unless otherwise noted)
| Optical Transmitter Characteristics | ||||||||||
| Signaling rate, each lane | Gb/s | 10.3125 | ||||||||
| Four Lane Wavelength Range | λ1 | 1264.5 | 1271 | 1277.5 | nm | |||||
| λ2 | 1284.5 | 1291 | 1297.5 | nm | ||||||
| λ3 | 1304.5 | 1311 | 1317.5 | nm | ||||||
| λ4 | 1324.5 | 1331 | 1337.5 | nm | ||||||
| Total launch power | 10.5 | dBm | ||||||||
| Average launch power, each lane | Pavg | -3.7 | +4.5 | dBm | 2 | |||||
| Optical modulation amplitude, each lane (OMA)2 | OMA | -0.7 | 5 | dBm | ||||||
| Difference in launch power between any two lanes (OMA) | 4.7 | dB | ||||||||
| Extinction ratio | ER | 5.5 | dB | |||||||
| Side-mode suppression ratio | SMSR | 30 | dB | |||||||
| Transmitter and dispersion penalty, each lane | TDP | 2.2 | dB | |||||||
| Optical return loss tolerance | 20 | dB | ||||||||
| Transmitter reflectance3 | –12 | dB | ||||||||
| Transmitter eye mask {X1, X2, X3, Y1, Y2, Y3} | {0.25,0.4,0.45,0.25,0.28,0.4} | |||||||||
| Optical Receiver Characteristics | ||||||||||
| Receive Rate for Each Lane | Gb/s | 10.3125 | ||||||||
| Damage Threshold, each Lane | THd | 3.8 | 3 | |||||||
| Average Receive Power for Each
Lane |
Pin | -20.2 | -1.5 | dBm | 4, 5 | |||||
| Receive Power In OMA for Each
Lane |
PinOMA | -1 | dBm | |||||||
| Difference in Receive Power in
OMA between Any Two Lanes |
5.5 | dBm | ||||||||
| Receiver Sensitivity in OMA for
Each Lane |
SOMA | -18 | dBm | 6 | ||||||
| Stressed Receiver Sensitivity in
OMA for Each Lane |
-15.8 | dBm | 7, 8 | |||||||
| LOS Assert | -35 | dBm | ||||||||
| LOS Deassert | -20 | dBm | ||||||||
Note:
- The supply current includes QSFP+module’s supply current and test board workingcurrent.
2.. Average launch power, each lane (min) is informative for 40GBase-ER4, not the principal indicator of signal strength.
3.The receiver shall be able to tolerate , without damage, continuous exposure to anoptical input signal having this average power level
- 4. The average receive power , each lane (max) for 40GBASE-ER4 is larger than the40GBASE-LR4 transmitter value to allow compatibility with 40GBASE-LR4 units at shortdistances
- 5. Average receive power, each lane (min) is informative and not the principal indicatorof signal strength. A received power below this value cannot be compliant; however, a valueabove this does not ensure compliance
- 6. Receiver sensitivity (OMA), each lane (max) is informative
- 7. Measured with conformance test signal at TP3 for BER=10-12
- 8. conditions of stressed receiver sensitivity test: vertical eye closure penalty for eachlane is 1.8dB;stressed eye J2 jitter for each lane is 0.3UI; stressed eye J9 jitter for each laneis 0.47UI.
Application
- 40GBASE-ER4 Ethernet Links
- Infiniband QDR and DDR interconnects
- Client-side 40G Telecom connections
Recommended HOST BOARD SCHEMATIC
ER4 40km Optical Transceiver
Recommended Power Supply Filter
Optical Transceiver
Mechanical Diagram
RoHS Compliant
Order information
| Product Model | Descriptions | Inquiry |
|---|---|---|
| BD-QSFP -CD40 | QSFP+ ER4 ,40G 40KM DDM | Request Price |
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