Generic Compatible 40G ESR4 QSFP+ 850nm 400m DOM MPO8/12 MMF Optical Transceiver Module
QSFP+40-85-04(ESR4)-MPO8/12
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| SPECIFICATIONS | |||
|---|---|---|---|
| Product Model | QSFP+40-85-04(ESR4)-MPO8/12 | Manufacturer Brand | PHILISUN |
| Package Type | QSFP+ | Optical Connector | MPO 8C/12C |
| Max Data Rate | 40G | Channel Data Rate | 10.3125Gbps |
| Effective Transmission Distance(OM3) | 300m | Effective Transmission Distance(OM4) | 400m |
| Wavelength | 850nm | Operating Voltage | 3.3V |
| Fiber Type | MMF | Core Size | 50/125µm |
| Transmitter Type | VCSEL | Receiver Type | PIN |
| TX Power | -7.6~2.4dbm | Receiver Sensitivity | -9.5dbm |
| Digital Diagnostic Monitoring(DDM) | YES | Receiver Overload | 2.4dBm |
| Power Consumption | < 1.5W | Protocols | IEEE 802.3ba IEEE 802.3ae QSFP+ MSA SFF-8436 |
| Operating temperature(Commercial) | 0℃~+70℃ | Storage Temperature(Commercial) | -40℃~+85℃ |
PRODUCT PRESENTATION
The PHILISUN QSFP+ 40G 850nm 400m ESR4 MPO 8/12 transceiver is designed for 40GBASE Ethernet applications, supporting transmission up to 400m over multimode fiber (MMF) at an 850nm wavelength through an MTP/MPO-12 connector. It complies with QSFP+ MSA, IEEE 802.3ba 40GBASE-SR4, and IEEE 802.3ae 10GBASE-SR standards. Equipped with digital diagnostics accessible via the I2C interface, it provides real-time monitoring of operating parameters. With its hot-swappable and easy-to-install design, this transceiver is ideal for data centers, high-performance computing networks, and enterprise core and distribution layers.
TRANSCEIVER SERIES PRODUCTS

PRODUCTION & TESTING EQUIPMENT

PERFORMANCE PARAMETER
| Absolute Maximum Ratings | |||||||||
| Parameter | Symbol | Min. | Max. | Unit | |||||
| Storage Temperature | TS | -40 | +85 | °C | |||||
| Supply Voltage | VCC | -0.5 | 3.6 | V | |||||
| Operating Relative Humidity | RH | 0 | 85 | % | |||||
| *Exceeding any one of these values may destroy the device immediately. | |||||||||
| Recommended Operating Conditions | |||||||||
| Parameter | Symbol | Min. | Typical | Max. | Unit | ||||
| Operating Case Temperature | Tc | QSFP+40-85-04(ESR4)-MPO8/12 | 0 | – | +70 | °C | |||
| Power Supply Voltage | Vcc | 3.135 | 3.3 | 3.465 | V | ||||
| Power Supply Current | Icc | – | – | 450 | mA | ||||
| Lane Bit Rate | BRLANE | – | 10.3125 | – | Gbps | ||||
| Optical and Electrical Characteristics | |||||||||
| Parameter |
Symbol
|
Min. | Typical | Max. | Unit | ||||
| OM3 MMF | L | 0.5 | – | 300 | m | ||||
| Per Lane Bit Rate | BRLANE | – | 10.3125 | – | Gbps | ||||
| Transmitter | |||||||||
| Center Wavelength | λC | 840 | 850 | 860 | nm | ||||
| RMS Spectral Width | RMS | – | – | 0.65 | nm | ||||
| Average Launch Power, Each Lane | Pout/lane | -7.6 | – | 2.4 | dBm | ||||
| Extinction Ratio | ER | 3 | – | – | dB | ||||
| Average Launch Power of OFF, Each Lane | – | – | – | -30 | dBm | ||||
| Output Optical Eye | IEEE 802.3ba-2010 Compliant | ||||||||
| Receiver | |||||||||
| Center Wavelength | λC | 840 | 850 | 860 | nm | ||||
| Damage Threshold | – | 3.4 | – | – | dB | ||||
| Receiver Sensitivity In Each Lane |
Pmin |
–
|
–
|
-9.5 | dBm | ||||
| LOS De-Assert, OMA | LOSD | – | – | -12 | dBm | ||||
| LOS Assert | LOSA | -30 | – | – | dBm | ||||
| LOS Hysteresis | – | 0.5 | – | – | dB | ||||
QSFP+ TRANSCEIVER ELECTRICAL PAD LAYOUT

PIN ARRANGEMENT AND DEFINITION
| PIN ARRANGEMENT AND DEFINITION | |||||||||
| Pin | Logic | Symbol | Description | Plug Sequence | Notes | ||||
| 1 | – | GND | Ground | 1 | 1 | ||||
| 2 | CML-I | Tx2n | Transmitter Inverted Data Input | 3 | – | ||||
| 3 | CML-I | Tx2p | Transmitter Non-Inverted Data Input | 3 | – | ||||
| 4 | – | GND | Ground | 1 | 1 | ||||
| 5 | CML-I | Tx4n | Transmitter Inverted Data Input | 3 | – | ||||
| 6 | CML-I | Tx4p | Transmitter Non-Inverted Data Input | 3 | – | ||||
| 7 | – | GND | Ground | 1 | 1 | ||||
| 8 | LVTTL-I | ModSelL | Module Select | 3 | – | ||||
| 9 | LVTTL-I | ResetL | Module Reset | 3 | – | ||||
| 10 | – | VccRx | +3.3V Power Supply Receiver | 2 | 2 | ||||
| 11 | LVCMOS- I/O | SCL | 2-wire Serial Interface Clock | 3 | – | ||||
| 12 | LVCMOS- I/O | SDA | 2-wire Serial Interface Data | 3 | – | ||||
| 13 | – | GND | Ground | 1 | 1 | ||||
| 14 | CML-O | Rx3p | Receiver Non-Inverted Data Output | 3 | – | ||||
| 15 | CML-O | Rx3n |
Receiver Inverted Data Output
|
3 | – | ||||
| 16 | – | GND | Ground | 1 | 1 | ||||
| 17 | CML-O | Rx1p | Receiver Non-Inverted Data Output | 3 | – | ||||
| 18 | CML-O | Rx1n | Receiver Inverted Data Output | 3 | – | ||||
| 19 | – | GND | Ground | 1 | 1 | ||||
| 20 | – | GND | Ground | 1 | 1 | ||||
| 21 | CML-O | Rx2n | Receiver Inverted Data Output | 3 | – | ||||
| 22 | CML-O | Rx2p | Receiver Non-Inverted Data Output | 3 | – | ||||
| 23 | – | GND | Ground | 1 | 1 | ||||
| 24 | CML-O | Rx4n | Receiver Inverted Data Output | 3 | – | ||||
| 25 | CML-O | Rx4p | Receiver Non-Inverted Data Output | 3 | – | ||||
| 26 | – | GND | Ground | 1 | 1 | ||||
| 27 | LVTTL-O | ModPrsL | Module Present | 3 | – | ||||
| 28 | LVTTL-O | IntL | Interrupt | 3 | – | ||||
| 29 | – | VccTx | +3.3V Power supply transmitter | 2 | 2 | ||||
| 30 | – | Vcc1 | +3.3V Power supply | 2 | 2 | ||||
| 31 | LVTTL-I | LPMode | Low Power Mode | 3 | – | ||||
| 32 | – | GND | Ground | 1 | 1 | ||||
| 33 | CML-I | Tx3p | Transmitter Non-Inverted Data Input | 3 | – | ||||
| 34 | CML-I | Tx3n | Transmitter Inverted Data Input | 3 | – | ||||
| 35 | – | GND | Ground | 1 | 1 | ||||
| 36 | CML-I | Tx1p | Transmitter Non-Inverted Data Input | 3 | – | ||||
| 37 | CML-I | Tx1n | Transmitter Inverted Data Input | 3 | – | ||||
| 38 | – | GND | Ground | 1 | 1 | ||||
| 1: GND is the symbol for signal and supply (power) common for the QSFP+ module. All are common within the QSFP+ module and all module voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal-common ground plane. | |||||||||
| 2: Vcc Rx, Vcc1 and Vcc Tx are the receiver and transmitter power supplies and shall be applied concurrently. Vcc Rx Vcc1 and Vcc Tx may be internally connected within the QSFP+ Module in any combination. The connector pins are each rated for a maximum current of 500mA. | |||||||||
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