GAOTek XFP BIDI Transceiver with 10 GB/s (80km)

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





This 10 Gigabit 1490nm and 1550nm XFP Bidirectional Transceiver is used with single mode optical fiber to reach up to 49.72 miles (80km) transmission distance. It offers high speed communication rates up to 11.3 Gb/s. It has an EML type transmitter and APD type receiver. It provides a built-in Digital Diagnostics Function. It complies with small form-factor pluggable (XFP) MSA and RoHS-6 standards.

Key Features:

    • Up to 49.72 miles (80km) transmission distance.
    • 1490nm EML laser and APD receiver
    • 1550nm EML laser and APD receiver
    • Supports 9.95Gb/s to 11.3Gb/s bit rates
    • Hot-pluggable XFP footprint.
    • 2-wire interface with integrated Digital Diagnostic monitoring
    • EEPROM with Serial ID Functionality
  • Power dissipation<2.5W.
  • XFI Loopback Mode.
  • RoHS-6 Compliant (lead-free)
  • Compliant with XFP MSA with LC connector
  • Industrial Case operating temperature range from -40 °F to 185 °F (-40°C to 85°C)
  • Commercial Case operating temperature range from 50 °F to 158 °F (-10°C to 70°C)

Technical Specifications:

Working RangeUp to 49.72 miles (80km)
StandardsAs per IEEE 802.3ae requirements.

Class 1 Laser Product.


RoHS-6 compliant.

Memory256 byte EEPROM
Data rate10Gb/s
Wavelength1490nm ,1550nm
Fiber type9/125 um single-mode
Transmitter output optical Power0 dBm to 4 dBm

-1 dBm to 3 dBm

Receiver Sensitivity-24 dBm
Receiver Input Saturation Power-6 dBm
Supply Voltage3.3V
Maximum Power Consumption<2.5W
Transmitter Input Differential Impedance100Ω
Dimensions3.07in x 0.72in x 0.45in (L 78mm x W18.3mm x   H 11.4mm)
Relative Humidity5% to 95%
Storage Temperature-40 °F to 185 °F (-40°C to 85°C)
Case Operating TemperatureIndustrial-40 °F to 185 °F (-40°C to 85°C)
Commercial50 °F to 158 °F (-10°C to 70°C)

Additional Information:


Ideal to be used on applications such as

  • 10GBASE-BX 9.953Gb/s Ethernet
  • SONET OC-192 &SDH STM I-64.1
  • 10GBASE-BX 10.3125Gb/s Ethernet

Ordering Information:

Product IDMediaWavelength


Transmission DistanceTemperature Range


single-mode fiber1490TX/1550 RX49.72miles (80km)Commercial

50 °F to 158 °F (-10°C to 70°C)



single-mode fiber1550TX/1490 RX49.72miles (80km)Commercial

50 °F to 158 °F (-10°C to 70°C)



single-mode fiber1490TX/1550 RX49.72miles (80km)Industrial

-40 °F to 185 °F (-40°C to +85°C)



single-mode fiber1550 TX/1490 RX49.72miles (80km)Industrial

-40 °F to 185 °F (-40°C to +85°C)

Digital Diagnostics Functions:

  • GAOTek GAO- XFPBD -101 series transceiver support the 2-wire serial communication protocol as defined in the XFP MSA.
  • Additionally, GAOTek XFP 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 XFP Serial id provides access to identification information that describes the transceiver’s capabilities, standard interfaces, manufacturer and other information.
  • XFP 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:

Module Total Power   2.5W1
Supply Current-1.8V supplyIcc2  200mA
Supply Current-3.3V supplyIcc3  650mA
XFP Interrupt, Mod_NRVol0 0.4V
VohVccHOST -0.5 VccHOST +0.3V
P_Down/RSTVil-0.3 0.8V
Vih2.0 Vcc3+0.3V
Interrupt Assert DelayInterrupt_on  200ms
Interrupt Negate DelayInterrupt_off  500us
Mod_NR Assert / Negate Delay  1ms
P-Down reset time10 us
Input Differential ImpedanceRin801001202
Single ended data input swingVin, pp120820mV
Transmit Disable VoltageVD2.0VccV3
Transmit Enable VoltageVenGNDGND+ 0.8V
Differential Output ImpedanceRout801001204
Differential data output swingVout,pp340850mV
Data output rise timetr38ps5
Data output fall timetf38ps5
LOS FaultVLOS faultVcc–0.5VccHOSTV6
LOS NormalVLOS normGNDGND+0.5V6


  1. Maximum total power value is specified across the full temperature and voltage range.
  2. After internal AC coupling.
  3. Open circuit.
  4. Into 100 ohms differential termination.
  5. These are unfiltered 20-80% values
  6. Loss of Signal is open collector to be pulled up with a 4.7kΩ – 10kΩ resistor to 3.15 – 3.6V.
  • Logic 0 indicates normal operation.
  • Logic 1 indicates no signal detected.

Optical Characteristics:

Average Launched PowerPO04dBmGAO-XFPBD -101B


-13dBmGAO-XFPBD -101C


Centre Wavelength Rangeλ148014901500nmGAO-XFPBD -101B


154015501560nmGAO-XFPBD -101C


Side mode Suppression ratioSMSR30dB
Optical Extinction RatioER6dB
Average Launch power of transmitterPOFF-45dBm
Spectrum Bandwidth(-20dB)σ1nm
Output Eye MaskCompliant with IEEE 802.3ae requirements
Receiver SensitivityRSENS-24dBm
Input Optical WavelengthλIN148014901500nmGAO-XFPBD -101C


154015501560nmGAO-XFPBD -101B


Input Saturation Power (Overload)Psat-6dBm
Receiver ReflectanceRrx-27dB
LOS AssertLOSA-38dBm
LOS De -AssertLOSD-25dBm
LOS Hysteresis0.54dB

PIN Diagram:

PIN Descriptions:

1GNDModule Ground1
2VEE5Optional –5.2 Power Supply – Not required
3LVTTL-IMod-DeselModule De-select; When held low allows the module to respond to 2-wire serial interface commands
4LVTTL-OInterruptInterrupt (bar); Indicates presence of an important condition which can be read over the serial 2-wire interface3
5LVTTL-ITX_DISTransmitter Disable; Transmitter laser source turned off
6VCC5+5 Power Supply
7GNDModule Ground1
8VCC3+3.3V Power Supply
9VCC3+3.3V Power Supply
10LVTTL-ISCLSerial 2-wire interface clock
11LVTTL-I/OSDASerial 2-wire interface data line3
12LVTTL-OMod_AbsModule Absent; Indicates module is not present. Grounded in the module.3
13LVTTL-OMod_NRModule Not Ready; GAOTek defines it as a logical OR between RX_LOS and Loss of Lock in TX/RX.3
14LVTTL-ORX_LOSReceiver Loss of Signal indicator3
15GNDModule Ground1
16GNDModule Ground1
17CML-ORD-Receiver inverted data output
18CML-ORD+Receiver non-inverted data output
19GNDModule Ground1
20VCC2+1.8V Power Supply – Not required
21LVTTL-IP_Down/RSTPower Down; When high, places the module in the low power stand-by mode and on the falling edge of P_Down initiates a module reset


Reset; The falling edge initiates a complete reset of the module including the 2-wire serial interface, equivalent to a power cycle.
22VCC2+1.8V Power Supply – Not required
23GNDModule Ground1
24PECL-IRefCLKReference Clock non-inverted input, AC coupled on the host board –Not required2
25PECL-IRefCLK-Reference Clock inverted input, AC coupled on the host board – Not required2
26GNDModule Ground1
27GNDModule Ground1
28CML-ITD-Transmitter inverted data input
29CML-ITD+Transmitter non-inverted data input
30GNDModule Ground1


  1. Module circuit ground is isolated from module chassis ground within the module.
  2. A Reference Clock input is not required .If present, it will be ignored.
  3. Open collector; should be pulled up with 4.7kΩ – 10kΩ on host board to a voltage between 3.15V and 3.6V.

Mechanical Specifications:

GAOTek’s XFP transceivers are compliant with the dimensions defined by the XFP Multi-Sourcing Agreement (MSA).

XFP transceiver (dimensions are in mm)

PCB Layout and Bezel Recommendations:

XFP Host Board Mechanical Layout (dimensions are in mm)

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