40G QSFP+ SR Transceiver for 150m MMF Links, 850nm MPO8/12

The FC-LINK QSFP+ 40G 850nm 150m SR MPO 8/12 transceiver features 12-fiber MTP/MPO male connectors, supporting links up to 150m over OM4 MMF and 100m over OM3. It complies with QSFP+ MSA, IEEE 802.3ba 40GBASE-SR4, and supports 4x10GBASE-SR breakout. Fully interoperable with standard 40GBASE-SR4 interfaces, it also offers digital diagnostics via the I2C interface, per QSFP+ MSA specifications, providing real-time access to operating parameters. Its hot-swappable and easy-to-install design makes it perfect for a wide range of applications, including campus networks, data centers, cloud deployments, HPC environments, and interconnections between switches, routers, servers, and transport equipment.

SPECIFICATIONS
Product Model	QSFP+40-85-015(SR)-MPO8/12	Manufacturer Brand	FC-LINK
Package Type	QSFP+	Optical Connector	MPO 8C/12C
Max Data Rate	40G	Channel Data Rate	10.3125Gbps
Effective transmission distance(OM3)	100m	Effective transmission distance(OM4)	150m
Wavelength	850nm	Operating Voltage	3.3V
Fiber Type	MMF	Core Size	50/125µm
Transmitter Type	VCSEL	Receiver Type	PIN
TX Power	-7.6~2.4dbm	Receiver Sensitivity	-5.4dbm
Digital Diagnostic Monitoring(DDM)	YES	Receiver Overload	2.4dBm
Power Consumption	< 1.5W	Protocols	IEEE 802.3ba IEEE 802.3ae QSFP+ MSA SFF-8436
Operating temperature(Commercial)	0℃~+70℃	Storage Temperature(Commercial)	-40℃~+85℃

网络拓扑展示模块

Device Information

Brand	Spine-layer	Leaf-layer	Port Configuration	Interconnect Interface & Rate	Server-layer	Network Card
Arista	DCS-7050QX-32S-R	DCS-7050TX	32 x 40GbE QSFP+	40G QSFP+	Service Layer Equipment	Intel X710-DA2、Intel X710-DA4、Intel X710-DA2 OCP 2.0、Mellanox ConnectX-4 Lx、StarTech PEX10GSFP4I、StarTech PEX20000SFPI （x8 Slot）/ Mellanox ConnectX-5（x16 Slot）
		DCS-7050SX	32 x 40GbE QSFP+	40G QSFP+
		DCS-7060CX	32 x 40GbE QSFP+	100G QSFP28（Slow Down）
H3C	S9850-32	S9850	32 x 100G QSFP28（Slow Down）	100G QSFP28（Slow Down）
H3C	S9850-32	S6800-54QF	32 x 100G QSFP28（Slow Down）	40G QSFP+
Inspur	CN9420-32C	CN9320	32 x 100G QSFP28（Slow Down）	100G QSFP28（Slow Down）
Inspur	CN9420-32C	CN61108PC-V-H	32 x 100G QSFP28（Slow Down）	40G QSFP+
Supermicro	SSE-C3632S	SSE-X3648S	32 x 100G QSFP28（Slow Down）	40G QSFP+
Supermicro	SSE-C3632S	SSE-G3648B	32 x 100G QSFP28（Slow Down）	40G QSFP+
Accton	AS7712-32X	AS5812-54X	32 x 100G QSFP28（Slow Down）	40G QSFP+
Accton	AS7712-32X	AS7312-54XS	32 x 100G QSFP28（Slow Down）	40G QSFP+
Dell	Z9100-ON	S5248F-ON	32 x 100G QSFP28（Slow Down）	100G QSFP28（Slow Down）
Arista	DCS-7060CX-32	DCS-7060CX	32 x 400G QSFP-DD（Slow Down）	100G QSFP28（Slow Down）
Mellanox/NVIDIA	SN3700C	SN2410C	32 x 100G QSFP28（Slow Down）	100G QSFP28（Slow Down）
Mellanox/NVIDIA	SN3700C	SN2100C	32 x 100G QSFP28（Slow Down）	100G QSFP28（Slow Down）
Cisco	N9K-C9364C-GX	N9K-C93180YC-FX3	64 x 100G QSFP28/40G QSFP+	100G QSFP28（Slow Down）
Cisco	N9K-C9364C-GX	N9K-C9336C-FX2	64 x 100G QSFP28/40G QSFP+	100G QSFP28（Slow Down）

网络拓扑展示模块

Device Information

Brand	Model	Insertion Port	Model	Insertion Port	Matching Products
Brand	40G/100G Ethernet Switch		10G Ethernet Switch
Arista	DCS-7050QX-32S-R	40G QSFP+	DCS-7050TX	40G QSFP+	OSFP+ Optical Transceiver / QSFP+ AOC / QSFP+DAC
		40G QSFP+	DCS-7050SX	40G QSFP+
		40G QSFP+	DCS-7060CX	100G QSFP28（Slow Down）
H3C	S9850-32	100G QSFP28（Slow Down）	S9850	100G QSFP28（Slow Down）
H3C	S9850-32	100G QSFP28（Slow Down）	S6800-54QF	40G QSFP+
Inspur	CN9420-32C	100G QSFP28（Slow Down）	CN9320	100G QSFP28（Slow Down）
Inspur	CN9420-32C	100G QSFP28（Slow Down）	CN61108PC-V-H	40G QSFP+
Supermicro	SSE-C3632S	100G QSFP28（Slow Down）	SSE-X3648S	40G QSFP+
Supermicro	SSE-C3632S	100G QSFP28（Slow Down）	SSE-G3648B	40G QSFP+
Accton	AS7712-32X	100G QSFP28（Slow Down）	AS5812-54X	40G QSFP+
Accton	AS7712-32X	100G QSFP28（Slow Down）	AS7312-54XS	40G QSFP+
Dell	Z9100-ON	100G QSFP28（Slow Down）	S5248F-ON	100G QSFP28（Slow Down）
Arista	DCS-7060CX-32	400G QSFP-DD（Slow Down）	DCS-7060CX	100G QSFP28（Slow Down）
Mellanox/NVIDIA	SN3700C	100G QSFP28（Slow Down）	SN2410C	100G QSFP28（Slow Down）
Mellanox/NVIDIA	SN3700C	100G QSFP28（Slow Down）	SN2100C	100G QSFP28（Slow Down）
Cisco	N9K-C9364C-GX	100G QSFP28（Slow Down）	N9K-C93180YC-FX3	100G QSFP28（Slow Down）
Cisco	N9K-C9364C-GX	100G QSFP28（Slow Down）	N9K-C9336C-FX2	100G QSFP28（Slow Down）

网络拓扑展示模块

Device Information

Brand	40G/100G Ethernet Switch		10G Ethernet Switch		Matching Products
Brand	Model	Insertion Port	Model	Insertion Port	Optical Transceiver	Fiber Optical Patch Cord	Fiber Optical Patch Panel
Arista	DCS-7050QX-32S-R	40G QSFP+	DCS-7050TX	40G QSFP+	OSFP+ Optical Transceiver / QSFP+ AOC / QSFP+ DAC	MPO-12 to MPO-12 Multimode Patch Cord / LC to LC Singlemode Patch Cord	1U Fixed Patch Panel
		40G QSFP+	DCS-7050SX	40G QSFP+
		40G QSFP+	DCS-7060CX	100G QSFP28（Slow Down）
H3C	S9850-32	100G QSFP28（Slow Down）	S9850	100G QSFP28（Slow Down）
H3C	S9850-32	100G QSFP28（Slow Down）	S6800-54QF	40G QSFP+
Inspur	CN9420-32C	100G QSFP28（Slow Down）	CN9320	100G QSFP28（Slow Down）
Inspur	CN9420-32C	100G QSFP28（Slow Down）	CN61108PC-V-H	40G QSFP+
Supermicro	SSE-C3632S	100G QSFP28（Slow Down）	SSE-X3648S	40G QSFP+
Supermicro	SSE-C3632S	100G QSFP28（Slow Down）	SSE-G3648B	40G QSFP+
Accton	AS7712-32X	100G QSFP28（Slow Down）	AS5812-54X	40G QSFP+
Accton	AS7712-32X	100G QSFP28（Slow Down）	AS7312-54XS	40G QSFP+
Dell	Z9100-ON	100G QSFP28（Slow Down）	S5248F-ON	100G QSFP28（Slow Down）
Arista	DCS-7060CX-32	400G QSFP-DD（Slow Down）	DCS-7060CX	100G QSFP28（Slow Down）
Mellanox/NVIDIA	SN3700C	100G QSFP28（Slow Down）	SN2410C	100G QSFP28（Slow Down）
Mellanox/NVIDIA	SN3700C	100G QSFP28（Slow Down）	SN2100C	100G QSFP28（Slow Down）
Cisco	N9K-C9364C-GX	100G QSFP28（Slow Down）	N9K-C93180YC-FX3	100G QSFP28（Slow Down）
Cisco	N9K-C9364C-GX	100G QSFP28（Slow Down）	N9K-C9336C-FX2	100G QSFP28（Slow Down）

Compatible Brands

Customization Options

Vendor Coding

Private Label

Custom Part Number

Packaging Design

Temperature Grade Selection

Absolute Maximum Ratings
Parameter	Symbol	Min.	Max.	Unit
Storage Temperature	TS	-40	+85	°C
Supply Voltage	VCC	-0.5	3.6	V
Operating Relative Humidity	RH	5	85	%
*Exceeding any one of these values may destroy the device immediately.

Recommended Operating Conditions
Parameter	Symbol		Min.	Typical	Max.	Unit
Operating Case Temperature	Tc	QSFP+40-85-015(SR)-MPO8/12	0	-	+70	°C
Power Supply Voltage	Vcc		3.135	3.3	3.465	V
Power Supply Current	Icc		-	-	450	mA
Aggregate Bit Rate	BRAVE		-	41.25	-	Gbps
Lane Bit Rate	BRLANE		-	10.3125	-	Gbps

Optical and Electrical Characteristics
Parameter	Symbol	Min.	Typical	Max.	Unit
OM3 MMF	L	0.5	-	100	m
Aggregate Bit Rate	BRAVE	-	40	-	Gbps
Per Lane Bit Rate	BRLANE	-	10.3125	-	Gbps
Transmitter
Center Wavelength	λC	840	850	860	nm
RMS Spectral Width	RMS	-	-	0.65	nm
Average Launch Power, Each Lane	Pout/lane	-7.6	-	2.4	dBm
Transmit OMA, Per Lane	TX_OMA/lane	-5.6	-	3	dBm
Difference in Launch Power Between Any Two Lanes(OMA)	-	-	-	4	dB
Peak Power, Each Lane	-	-	-	4	dBm
Transmitter and Dispersion Penalty,Each Lane	TDP/lane	-	-	3.5	dB
Extinction Ratio	ER	3	-	-	dB
Optical Return Loss Tolerance	-	-	-	12	dB
Average Launch Power of OFF, Each Lane	-	-	-	-30	dBm
Output Optical Eye	IEEE 802.3ba-2010 Compliant
Receiver
Center Wavelength	λC	840	850	860	nm
Damage Threshold	-	3.4	-	-	dB
Stressed Receiver Sensitivity in OMA,Each Lane	Pmins	-	-	-5.4	dBm
Maximum Receive Power, Each Lane	Pmax	-	-	2.4	dBm
Average Power, Each Lane	RX/lane	-9.5	-	2.4	dBm
LOS De-Assert, OMA	LOSD	-	-	-7.5	dBm
Receiver Reflectance	Rr	-	-	-12	dB
LOS Assert	LOSA	-30	-	-	dBm
LOS Hysteresis	-	0.5	-	-	dB

QSFP+ Transceiver Electrical Pad Layout

PIN Arrangement and Definition
Pin	Logic	Symbol	Description	Plug Sequence	Notes
1	-	GND	Ground	1	1
2	CML-I	Tx2n	Transmitter Inverted Data Input	3	-
3	CML-I	Tx2p	Transmitter Non-Inverted Data Input	3	-
4	-	GND	Ground	1	1
5	CML-I	Tx4n	Transmitter Inverted Data Input	3	-
6	CML-I	Tx4p	Transmitter Non-Inverted Data Input	3	-
7	-	GND	Ground	1	1
8	LVTTL-I	ModSelL	Module Select	3	-
9	LVTTL-I	ResetL	Module Reset	3	-
10	-	VccRx	+3.3V Power Supply Receiver	2	2
11	LVCMOS- I/O	SCL	2-wire Serial Interface Clock	3	-
12	LVCMOS- I/O	SDA	2-wire Serial Interface Data	3	-
13	-	GND	Ground	1	1
14	CML-O	Rx3p	Receiver Non-Inverted Data Output	3	-
15	CML-O	Rx3n	Receiver Inverted Data Output	3	-
16	-	GND	Ground	1	1
17	CML-O	Rx1p	Receiver Non-Inverted Data Output	3	-
18	CML-O	Rx1n	Receiver Inverted Data Output	3	-
19	-	GND	Ground	1	1
20	-	GND	Ground	1	1
21	CML-O	Rx2n	Receiver Inverted Data Output	3	-
22	CML-O	Rx2p	Receiver Non-Inverted Data Output	3	-
23	-	GND	Ground	1	1
24	CML-O	Rx4n	Receiver Inverted Data Output	3	-
25	CML-O	Rx4p	Receiver Non-Inverted Data Output	3	-
26	-	GND	Ground	1	1
27	LVTTL-O	ModPrsL	Module Present	3	-
28	LVTTL-O	IntL	Interrupt	3	-
29	-	VccTx	+3.3V Power supply transmitter	2	2
30	-	Vcc1	+3.3V Power supply	2	2
31	LVTTL-I	LPMode	Low Power Mode	3	-
32	-	GND	Ground	1	1
33	CML-I	Tx3p	Transmitter Non-Inverted Data Input	3	-
34	CML-I	Tx3n	Transmitter Inverted Data Input	3	-
35	-	GND	Ground	1	1
36	CML-I	Tx1p	Transmitter Non-Inverted Data Input	3	-
37	CML-I	Tx1n	Transmitter Inverted Data Input	3	-
38	-	GND	Ground	1	1
1: GND is the symbol for signal and supply (power) common for the QSFP+ module. All are common within the QSFP+ module and all module voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal-common ground plane.
2: Vcc Rx, Vcc1 and Vcc Tx are the receiver and transmitter power supplies and shall be applied concurrently. Vcc Rx Vcc1 and Vcc Tx may be internally connected within the QSFP+ Module in any combination. The connector pins are each rated for a maximum current of 500mA.