Description
This product is a 100Gbps transceiver module designed for optical communication applications compliant to 100GBASE-ER4. The module converts 4 input channels of 25Gb/s electrical data to 4 channels of LAN WDM optical signals and then multiplexes them into a single channel for 100Gb/s optical transmission. Reversely on the receiver side, the module de-multiplexes a 100Gb/s optical input into 4 channels of LAN WDM optical signals and then converts them to 4 output channels of electrical data.
The central wavelengths of the 4 LAN WDM channels are 1295.56, 1300.05, 1304.58 and 1309.14 nm as members of the LAN WDM wavelength grid defined in IEEE 802.3ba. The high performance cooled LAN WDM EML transmitters and high sensitivity PIN+SOA receivers provide superior performance for 100Gigabit Ethernet applications up to 60km links and compliant to optical interface with IEEE802.3ba 100GBASE-ER4 requirements.
The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP28 Multi-Source Agreement. It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference.

Features
● 4 channels full-duplex transceiver modules
● Transmission data rate up to 27.95Gbps per channel
● 4 X 25/28G LAN-WDM EML Integrated TOSA Cooling transmitter
● 4 x PIN+SOA Receivers
● Internal CDR circuits on both receiver and transmitter channels
● Power consumption < 6W
● Hot Pluggable QSFP form factor
● Up to 60km transmission on single mode fiber
● Duplex LC receptacles
● Built-in digital diagnostic functions
● 3.3V power supply voltage
● RoHS compliant(lead free)
● Case operating temperature
     Commercial: 0 ~ +70℃
     Industrial: -40 ~ +85℃

Applications
● 100GbE IEEE 802.3ba 100GBASE-ER4
● ITU-T G.959.1 OTU4 (4L1-9C1F)

Absolute Maximum Ratings

Parameter

Symbol

Min

Max

Unit

Supply Voltage

Vcc

-0.3

3.6

V

Input Voltage 

Vin

-0.3

Vcc+0.3

V

Storage Temperature

Tst

-20

85

ºC

Case Operating Temperature

Top

0

70

ºC

Humidity(non-condensing)

Rh

5

85

%

Recommended Operating Conditions

Parameter

Symbol

Min

Typical

Max

Unit

Supply Voltage

Vcc

3.13

3.3

3.47

V

Operating Case temperature

Tca

0

70

ºC

Data Rate Per Lane

fd

25.78125

27.9525

Gbps

Humidity

Rh

5

85

%

Power Dissipation

P

6

W

Link Distance with G.652

D

60

km

Electrical Specifications

Parameter

Symbol

Min

Typical

Max

Unit

Power Consumption

P

6

W

Supply Current

Icc

1.9

A

Transmitter(each Lane)

Differential Input Voltage Swing

Vin

900

mVpp

Differential Input Impedance

Zin

90

100

110

Ohm

Receiver(each Lane)

Differential Output Voltage Swing

Vout

300

900

mVpp

Differential Output Impedance

Zout

90

100

110

Ohm

Optical Characteristics 

QSFP28 100GBASE-ER4

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Data Rate, each Lane

fd

25.78125

27.9525

Gbps

 

Lane Wavelength

L0

1294.53

1295.56

1296.59

nm

 

L1

1299.02

1300.05

1301.09

nm

 

L2

1303.54

1304.58

1305.63

nm

 

L3

1308.09

1309.14

1310.19

nm

 

Transmitter

SMSR

SMSR

30

dB

Total Average Launch Power

PT

8.9

dBm

Average Launch Power,

each Lane

PAVG

-2.9

2.9

dBm

OMA, each Lane

POMA

0.1

4.5

dBm

1

Difference in launch power between any two lanes(Average and OMA) between any Two Lanes (OMA)

Ptx,diff

3.6

dB

TDP, each Lane

TDP

2.5

dB

Extinction Ratio

ER

8

dB

RIN20OMA

RIN

-130

dB/Hz

Optical Return Loss Tolerance

TOL

20

dB

Transmitter Reflectance

RT

-12

dB

Eye Mask coordinates:

X1, X2, X3, Y1, Y2, Y3

{0.25, 0.4, 0.45, 0.25, 0.28, 0.4}

2

Average Launch Power OFF Transmitter, each Lane

Poff

-30

dBm

Receiver

Average Receive Power, each Lane

-23.2

-3.5

dBm

Equivalent Sensitivity for Each Lane(OTU4)

SEN

-23.2

dBm

3

Receiver Sensitivity in OMA for Each Lane(100GbE)

SEN

-21.4

dBm

4

Stressed Receiver Sensitivity (OMA), each Lane

-17.9

dBm

4

Difference in Receive Power between any Two Lanes (OMA)

Prx,diff

4.5

dB

LOS Assert

LOSA

-35

dBm

LOS Deassert

LOSD

-26

dBm

LOS Hysteresis

LOSH

0.5

dB

Receiver Electrical 3 dB upper Cutoff Frequency, each Lane

Fc

31

GHz

Note：

  • Even if the TDP < 1 dB, the OMA min must exceed theminimum valuespecified here.
  • See Figure below.
  • Measured with conformance test signal at receiver inputfor BER = 1x10-5.
  • Measured with conformance test signal at receiver inputfor BER = 1x10-12.

Mechanical Dimensions29

Ordering information

Part Number

Product Description

FTQ2-HG-ER4

100GE/OTU4, QSFP28, 100GBASE-ER4, LAN_WDM 60km,0 ~ +70℃

FTQ2-HG-ER4I

100GE/OTU4, QSFP28, 100GBASE-ER4, LAN_WDM 60km,-40 ~ +85℃

 

 

 

 

 

 

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Important Notice

Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.

The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.