switch qsfp+ QSFP+ LR4 transceiver,40G single mode fiber module

40G QSFP+ LR4 transceiver switch qsfp+

40G QSFP+ LR4 transceiver

single mode QSFP+ LR4 fiber module

Description
Inquiry

40Gb/s 10km QSFP+ LR4 Transceiver switch qsfp+

switch qsfp+

switch qsfp+ fiber module PRODUCT FEATURES

 4 CWDM lanes Mux/Demux design

 Up to 11.1Gbps Data rate per wavelength

 Up to 10km transmission on SMF

 Electrically hot-pluggable

 Digital Diagnostics Monitoring Interface

 Compliant with QSFP+ MSA with LC connector

 Case operating temperature range:0°C to 70°C

 Power dissipation < 3.5 W

APPLICATIONS

 40G Ethernet

 Data Center and LAN

STANDARD

 Compliant to IEEE 802.3ba

 Compliant to SFF-8436

 RoHS Compliant.

General Description

QSFP+ LR4 FF-QSFP+LR4 is designed to operate over single-mode fiber system using 4X10 CWDM channel in

1310 band and links up to 10km. The module converts 4 inputs channel of 10Gb/s electrical data to 4

CWDM optical signals, and multiplexes them into a single channel for 40Gb/s optical transmission.

Reversely, on the receiver side, the module optically de-multiplexes a 40Gb/s input into 4 CWDM

channels signals, and converts them to 4 channel output electrical data.

The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm. It contains a

duplex LC connector for the optical interface and a 38-pin connector for the electrical interface. Singlemode

fiber (SMF) is applied in this module. This product converts the 4-channel 10Gb/s electrical input

data into CWDM optical signals (light), by a 4-wavelength Distributed Feedback Laser (DFB) array. The

4 wavelengths are multiplexed into a single 40Gb/s data, propagating out of the transmitter module via

the SMF. The receiver module accepts the 40Gb/s optical signals input, and de-multiplexes it into 4

CWDM 10Gb/s channels. Each wavelength light is collected by a discrete photo diode, and then

outputted as electric data after amplified by a TIA.

QSFP+ LR4 is designed with form factor, optical/electrical connection and digital diagnostic interface

according to the QSFP+ Multi-Source Agreement (MSA) and compliant to 40G QSFP+ LR4 of IEEE

802.3ba.

ⅠAbsolute Maximum Ratings

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Storage Temperature	Ts	-40	–	85	ºC
Storage Ambient Humidity	HA	5	–	95	%
Operating Relative Humidity	RH	–	–	85	%
Power Supply Voltage	VCC	-0.3	–	4	V
Signal Input Voltage		Vcc-0.3	–	Vcc+0.3	V

Ⅱ Recommended Operating Conditions

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Case Operating Temperature	Tcase	0	–	70	ºC	Without air flow
Power Supply Voltage	VCC	3.14	3.3	3.47	V
Power Supply Current	ICC	–		800	mA
Data Rate	BR		10.3125		Gbps	Each channel
Transmission Distance	TD		–	10	km
Coupled fiber	Single mode fiber	9/125um SMF

Ⅲ Optical Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	NOTE
Transmitter
Wavelength Assignment	λ0	1264.5	1271	1277.5	nm
λ1	1284.5	1291	1297.5	nm
λ2	1304.5	1311	1317.5	nm
λ3	1324.5	1331	1337.5	nm
Total Output. Power	POUT			8.3	dBm
Average Launch Power Per lane		-7		2.3	dBm
Spectral Width (-20dB)	σ			1	nm
SMSR		30			dB
Optical Extinction Ratio	ER	3.5			dB
Average launch Power off per lane	Poff			-30	dBm
Transmitter and Dispersion Peanlty	TDP			2.3	dB
RIN	RIN			-128	dB/Hz
Output Eye Mask	Compliant with IEEE 802.3ba
Receiver
Rx Sensitivity per lane（OMA）	RSENS			-11.5	dBm	1
Input Saturation Power (Overload)	Psat	3.3			dBm
Receiver Reflectance	Rr			-26	dB

Notes:

Measured with a PRBS 231-1 test pattern, @10.325Gb/s, BER<10-12 .

switch qsfp+

Electrical Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	NOTE
Supply Voltage	Vcc	3.14	3.3	3.46	V
Supply Current	Icc			760	mA
Transmitter
Input differential impedance	Rin		100		Ω	1
Differential data input swing	Vin,pp	180		1000	mV
Transmit Disable Voltage	VD	Vcc–1.3		Vcc	V
Transmit Enable Voltage	VEN	Vee		Vee+ 0.8	V	2
Transmit Disable Assert Time				10	us
Receiver
Differential data output swing	Vout,pp	300		850	mV	3
Data output rise time	tr	28			ps	4
Data output fall time	tf	28			ps	4
LOS Fault	VLOS fault	Vcc–1.3		VccHOST	V	5
LOS Normal	VLOS norm	Vee		Vee+0.8	V	5
Power Supply Rejection	PSR	100			mVpp	6

Notes:

Connected directly to TX data input pins. AC coupled thereafter.
Or open circuit.
Into 100 ohms differential termination.
20 – 80 %.
Loss Of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.
Receiver sensitivity is compliant with power supply sinusoidal modulation of 20 Hz to 1.5 MHz up to specified

value applied through the recommended power supply filtering network.

switch qsfp+

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