GAOTek SFP+ BIDI Transceiver with 10 Gb/s (80km)

This 10 Gigabit 1490nm and 1550nm SFP+ BIDI Transceiver is used with single mode optical fiber to reach up to 49.72 miles (80km) transmission distance.



This 10 Gigabit 1490nm and 1550nm SFP+ BIDI Transceiver is used with single mode optical fiber to reach up to 49.72 miles (80km) transmission distance. This Bidirectional enhanced small form-factor pluggable (SFP+ BIDI) transceiver offers high speed communication up to 11.3 Gb/s. It provides a unique enhanced digital diagnostic monitoring interface.It complies with SFF-8472, SFF-8431 and RoHS standards.

Key Features:

  • Up to 49.72 miles (80km) transmission
  • 1490nm EML laser and APD receiver
  • 1550nm EML laser and APD receiver
  • EEPROM with Serial ID Functionality
  • Single 3.3V power supply
  • Compliant with SFP+ MSA with LC connector
  • Metal enclosure, for lower EMI
  • management specifications compliant with SFF 8472
  • Hot-pluggable SFP+ footprint
  • Commercial Case operating temperature range from 14 °F to 158°F (-10°C to +70°C)
  • Industrial Case operating temperature range from -40 °F to 185 °F (-40°C to +85°C)
  • Low power dissipation:
      • 1.5W power dissipation for Commercial temperature
      • 1.8W power dissipation for Industrial temperature

Technical Specifications:

Protocol2-Wire Serial communication Protocol
Working RangeUp to 49.72 miles (80km)
Memory256-byte memory map in EEPROM
StandardsSFF-8431 and SFF-8472, RoHS compliant
Data rate10Gb/s
Fiber Optic Cable9/125um
Transmitter output optical Power0 dBm to 4 dBm

-1 dBm to 3 dBm

Receiver Sensitivity-23 dBm
Receiver Input Saturation Power-6 dBm
Supply Voltage3.3V
Transmitter Input Differential Impedance100Ω
Dimensions2.26in x 0.54in x 0.47in (L 57.3mm x W13.7mm x H 11.9mm)
Relative Humidity5% to 95%
Storage Temperature-40 °F to 185 °F (-40°C to 85°C)

Case Operating Temperature

Commercial14 °F to 158°F (-10°C to +70°C)


Industrial-40 °F to 185 °F (-40°C to +85°C)


Additional Information:


Ideal to be used on applications such as

  • 10GBASE-BX

 Test Pattern:

  • Measured with a PRBS 231 -1 and BER<10-12 with data rate 10.3125Gb/s:

PRBS31 test pattern represents a pseudorandom binary sequence with a repetition period of 231 -1. The sequence is defined in IEEE STD

BER<10-12   test represents bit error rate testing provides a measurable and useful indication of the performance of the system.

  • Case operating temperature is measured without airflow.

Ordering Information:

Product ID MediaWavelength


Transmission Distance


Temperature RangeSupply Current
GAO-SFPPBD-101Single-mode fiber1490 TX/1550 RX49.72miles (80km)Commercial

32°F to 158°F (0°C to +70°C)

GAO-SFPPBD-101ASingle-mode fiber1550 TX/1490 RX49.72miles (80km)Commercial

32°F to 158°F (0°C to +70°C)

GAO-SFPPBD-101BSingle mode fiber1490 TX/1550 RX49.72miles (80km)Industrial

-40 °F to 185 °F (-40°C to +85°C)

GAO-SFPPBD-101CSingle-mode fiber1550 TX/1490 RX49.72miles (80km)Industrial

-40 °F to 185 °F (-40°C to +85°C)



Digital Diagnostics Functions:

  • GAOTek GAO-SFPPBD-101 series transceivers support the 2-wire serial communication protocol as defined in the SFP MSA.
  • Additionally, GAOTek SFP+ Transceivers provide a unique enhanced digital diagnostic monitoring interface which allows real-time access to device operating parameters such as transmitter optical power, receiver optical power, transceiver temperature, transceiver supply voltage and laser bias current. It defines an alarm system and warning flags, which alerts the end users when particular operating parameters are outside of a factory set normal range.
  • Standard SFP+ Serial id provides access to identification information that describes the transceiver’s capabilities, standard interfaces, manufacturer and other information.
  • SFP+ MSA defines a 256-byte memory map in EEPROM that is accessible over a 2 wire serial interface at the 8 bit address 1010000X (A0h).
  • The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed through a 2-wire serial interface. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially

Electrical characteristics:

Differential line input ImpedanceRIN80100120
Differential Data Input VoltageVDT1801200mVp-p
Transmit Disable Voltage-HighVDisH2Vcc+0.3V
Transmit Disable Voltage-LowVDisL-0.30.8V
Transmit Fault Output -HighVFaultH2.4VccV
Transmit Fault Output-LowVFaultL-0.30.8V
Differential data output VoltageVDR300850mVp-p
Differential line Output ImpedanceROUT80100120ohm
Receiver LOS Pull up ResistorRLOS4.710KOhm
Data Output Rise/Fall timetr/tf24ps
LOS Assert LevelVLOS faultVcc-1.3VccHOSTV
LOS De-assert LevelVLOS normVeeVee+0.8V

Optical Characteristics:

Average Launched PowerPO04dBm
Average Launched Power(Laser OffPoff-30dBm
Center Wavelength RangeλCλ-7.5λλ+7.5nm1
Optical Extinction RatioER7.5dB
Spectral Width(-20dB)σ0.3nm
Output Eye MaskCompliant with IEEE 802.3ae
Side-mode Supression ratioSMSR30dB
Receiver SensitivityPsen-23dBm
Input Optical WavelengthλIN148014901500nm
Input Saturation Power (Overload)Psat-6dBm
LOS AssertLOSA-38dBm
LOS De -AssertLOSD-24dBm
LOS Hysteresis0.58dB


  1. λ is wavelength of room temperature

PIN out Diagram:

 PIN Descriptions:

PinSymbol Name/DescriptionNote
1VEETTransmitter Ground (Common with Receiver Ground)1
2TFaultTransmitter Fault2
3TDisTransmitter Disable.3
4SDA2-wire Serial Interface Data Line4
5SCL2-wire Serial Interface Clock Line4
6MOD_ABSModule Absent. Grounded within the module5
7RS0Rate Select 0. 


8LOSLoss of Signal indication. Logic 0 indicates normal operation7
9RS1No connection required1
10VEERReceiver Ground (Common with Transmitter Ground)1
11VEERReceiver Ground (Common with Transmitter Ground)1
12RD-Receiver Inverted DATA out. AC coupled
13RD+Receiver Non-inverted DATA out. AC coupled
14VEERReceiver Ground (Common with transmitter Ground)1
15VCCRReceiver power Supply
16VCCTTransmitter Power supply
17VEETTransmitter Ground (Common with receiver Ground)1
18TD+Transmitter Non-Inverted DATA in. AC Coupled.
19TD-Transmitter Inverted DATA in.AC Coupled.
20VEETTransmitter Ground1


  1. Circuit ground is internally isolated from ground.
  2. TFault is an open collector or drain output.
    • This should be pulled up with a 4.7k -10k ohms resistor on the host board if intended for use.
    • Pull up voltage should be between 2.0V to Vcc +0.3V.
    • High output indicates a transmitter fault caused by either the TX bias current or the TX output power exceeding the preset alarm thresholds.
    • Low output indicates normal operation. In the low state output is pulled to <0.8V
  3. Laser output disabled when it is open or TDis > 2.0V, enabled on TDis < 0.8V.
  4. Should be pulled up with 4.7kΩ to 10kΩ on host board to a voltage between 2.0V and 3.6V.
  5. MOD_ABS pulls the line low to indicate the module is plugged in.
  6. Internally pulled down per SFF-8431
  7. Loss of signal is open collector output.
  • This should be pulled up with 4.7 kΩ to 10 kΩ on host board to a voltage between 2.0V and 3.6V.
  • Logic 0 indicates normal operation.
  • Logic 1 indicates loss of signal.

Mechanical Specifications:

Improved Pluggable form factor specification Comply to SFF-8432

Host – Transceiver Interface Block Diagram:

Regulatory Compliance:

Laser Eye SafetyFDA 21CFR 1040.10, 1040.11 IEC/EN 60825-1,2Class 1 laser product
Component RecognitionIEC/EN 60950, ULCompatible with standards
ROHS2002/95/ECCompatible with standards
Electrostatic discharge(ESD)IEC/EN 61000-4-2Compatible with standards
EMCEN61000-3Compatible with standards
Electromagnetic Interference(EMI)FCC Part 15 Class B EN 55022 Class B (CISPR 22A)Compatible with standards