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 Range Up to 49.72 miles (80km)
Standards As per IEEE 802.3ae requirements.

Class 1 Laser Product.


RoHS-6 compliant.

Memory 256 byte EEPROM
Data rate 10Gb/s
Wavelength 1490nm ,1550nm
Connector LC
Transmitter EML
Receiver APD
Fiber type 9/125 um single-mode
Transmitter output optical Power 0 dBm to 4 dBm

-1 dBm to 3 dBm

Receiver Sensitivity -24 dBm
Receiver Input Saturation Power -6 dBm
Supply Voltage 3.3V
Maximum Power Consumption <2.5W
Transmitter Input Differential Impedance 100Ω
Dimensions 3.07in x 0.72in x 0.45in (L 78mm x W18.3mm x   H 11.4mm)
Relative Humidity 5% to 95%
Storage Temperature -40 °F to 185 °F (-40°C to 85°C)
Case Operating Temperature Industrial -40 °F to 185 °F (-40°C to 85°C)
Commercial 50 °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 ID Media Wavelength


Transmission Distance Temperature Range


single-mode fiber 1490TX/1550 RX 49.72miles (80km) Commercial

50 °F to 158 °F (-10°C to 70°C)



single-mode fiber 1550TX/1490 RX 49.72miles (80km) Commercial

50 °F to 158 °F (-10°C to 70°C)



single-mode fiber 1490TX/1550 RX 49.72miles (80km) Industrial

-40 °F to 185 °F (-40°C to +85°C)



single-mode fiber 1550 TX/1490 RX 49.72miles (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:

Parameter Symbol Min Type Max Unit Note
Module Total Power       2.5 W 1
Supply Current-1.8V supply Icc2     200 mA
Supply Current-3.3V supply Icc3     650 mA
XFP Interrupt, Mod_NR Vol 0   0.4 V
Voh VccHOST -0.5   VccHOST +0.3 V
P_Down/RST Vil -0.3   0.8 V
Vih 2.0   Vcc3+0.3 V
Interrupt Assert Delay Interrupt_on     200 ms
Interrupt Negate Delay Interrupt_off     500 us
Mod_NR Assert / Negate Delay     1 ms
P-Down reset time 10   us
Input Differential Impedance Rin 80 100 120 2
Single ended data input swing Vin, pp 120 820 mV
Transmit Disable Voltage VD 2.0 Vcc V 3
Transmit Enable Voltage Ven GND GND+ 0.8 V
Differential Output Impedance Rout 80 100 120 4
Differential data output swing Vout,pp 340 850 mV
Data output rise time tr 38 ps 5
Data output fall time tf 38 ps 5
LOS Fault VLOS fault Vcc–0.5 VccHOST V 6
LOS Normal VLOS norm GND GND+0.5 V 6


  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:

Parameter Symbol Min Type Max Unit Note
Average Launched Power PO 0 4 dBm GAO-XFPBD -101B


-1 3 dBm GAO-XFPBD -101C


Centre Wavelength Range λ 1480 1490 1500 nm GAO-XFPBD -101B


1540 1550 1560 nm GAO-XFPBD -101C


Side mode Suppression ratio SMSR 30 dB
Optical Extinction Ratio ER 6 dB
Average Launch power of transmitter POFF -45 dBm
Spectrum Bandwidth(-20dB) σ 1 nm
Output Eye Mask Compliant with IEEE 802.3ae requirements
Receiver Sensitivity RSENS -24 dBm
Input Optical Wavelength λIN 1480 1490 1500 nm GAO-XFPBD -101C


1540 1550 1560 nm GAO-XFPBD -101B


Input Saturation Power (Overload) Psat -6 dBm
Receiver Reflectance Rrx -27 dB
LOS Assert LOSA -38 dBm
LOS De -Assert LOSD -25 dBm
LOS Hysteresis 0.5 4 dB

PIN Diagram:

PIN Descriptions:

Pin Logic Symbol Name/Description Note
1 GND Module Ground 1
2 VEE5 Optional –5.2 Power Supply – Not required
3 LVTTL-I Mod-Desel Module De-select; When held low allows the module to respond to 2-wire serial interface commands
4 LVTTL-O Interrupt Interrupt (bar); Indicates presence of an important condition which can be read over the serial 2-wire interface 3
5 LVTTL-I TX_DIS Transmitter Disable; Transmitter laser source turned off
6 VCC5 +5 Power Supply
7 GND Module Ground 1
8 VCC3 +3.3V Power Supply
9 VCC3 +3.3V Power Supply
10 LVTTL-I SCL Serial 2-wire interface clock
11 LVTTL-I/O SDA Serial 2-wire interface data line 3
12 LVTTL-O Mod_Abs Module Absent; Indicates module is not present. Grounded in the module. 3
13 LVTTL-O Mod_NR Module Not Ready; GAOTek defines it as a logical OR between RX_LOS and Loss of Lock in TX/RX. 3
14 LVTTL-O RX_LOS Receiver Loss of Signal indicator 3
15 GND Module Ground 1
16 GND Module Ground 1
17 CML-O RD- Receiver inverted data output
18 CML-O RD+ Receiver non-inverted data output
19 GND Module Ground 1
20 VCC2 +1.8V Power Supply – Not required
21 LVTTL-I P_Down/RST Power 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.
22 VCC2 +1.8V Power Supply – Not required
23 GND Module Ground 1
24 PECL-I RefCLK Reference Clock non-inverted input, AC coupled on the host board –Not required 2
25 PECL-I RefCLK- Reference Clock inverted input, AC coupled on the host board – Not required 2
26 GND Module Ground 1
27 GND Module Ground 1
28 CML-I TD- Transmitter inverted data input
29 CML-I TD+ Transmitter non-inverted data input
30 GND Module Ground 1


  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:

Feature Reference Performance
Laser Eye Safety FDA 21CFR 1040.10, 1040.11 IEC/EN 60825-1,2 Class 1 laser product
Component Recognition IEC/EN 60950, UL Compatible with standards
ROHS 2002/95/EC Compatible with standards
Electrostatic discharge(ESD) IEC/EN 61000-4-2 Compatible with standards
EMC EN61000-3 Compatible with standards
Electromagnetic Interference(EMI) FCC Part 15 Class B EN 55022 Class B (CISPR 22A) Compatible with standards