100G QSFP28 Active Electrical Loopback Module

Description
The F-tone Networks FTQ2-HG-LBxx QSFP28 active electrical loopback is used for testing QSFP28 transceiver ports in board level test. By substituting for a full-featured QSFP28 transceiver, the electrical loopback provides a cost effective low loss method for QSFP28 port testing.
The FTQ2-HG-LBxx is packaged in a standard MSA housing compatible with all QSFP28 ports. Transmit data from the host is electrically routed (internal to the loopback module) to the receive data outputs and back to the host. Since the loopback module does not contain laser diodes, photodiodes, laser driver or transimpedance amplifier chips, etc., it provides an economical way to exercise QSFP28 ports during R&D validation, production testing and field testing. The FTQ2-HG-LBxx provides QSFP28 power Class 1, 2, 3, or 4 loading using a customer supplied +3.3V voltage supply. Power Classes 5, 6 and 7 are available upon request.

Features
●  4 channels full-duplex transceiver modules            
●  Supports 100Gbps total data rate
●  Low power consumption <1W
●  Hot Pluggable QSFP form factor 
●  3.3V power supply voltage
●  RoHS 6 compliant(lead free
●  Case operating temperature
     Commercial: 0 ~ +70℃
     Industrial: -40 ~ +85℃

Applications
●  IEEE 802.3bm 
●  Infiniband EDR
●  QSFP port/system testing

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	95	%

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		Gbps
Humidity	Rh	5		85	%
Power Dissipation	Pm			1	W
Fiber Bend Radius	Rb	3			cm

Electrical Specifications

Parameter	Symbol	Min	Typical	Max	Unit
Differential input impedance	Zin	90	100	110	ohm
Differential Output impedance	Zout	90	100	110	ohm
Differential input voltage amplitude  aAmplitude	ΔVin	300		1100	mVp-p
Differential output voltage amplitude	ΔVout	500		800	mVp-p
Skew	Sw			300	ps
Bit Error Rate	BER			E-12
Input Logic Level High	VIH	2.0		VCC	V
Input Logic Level Low	VIL	0		0.8	V
Output Logic Level High	VOH	VCC-0.5		VCC	V
Output Logic Level Low	VOL	0		0.4	V

Note：
1.   BER=10^-12; PRBS 2^31-1@78125Gbps.
2.   Differential input voltage amplitude is measured between TxnP and TxnN.
3.   Differential output voltage amplitude is measured between RxnP and RxnN. 

Mechanical Dimensions

Ordering information

Part Number	Product Description
FTQ2-HG-LB	QSFP28, 100GBASE Active Electrical Loopback,0ºC ~ +70ºC
FTQ2-HG-LBI	QSFP28, 100GBASE Active Electrical Loopback,-40ºC ~ +85ºC

北亿纤通 | F-tone Networks

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企业手机：19081343401
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注：本产品有全国产化型号可选

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.