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QSFP+

QSFP+ Transceiver

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Specifications

产品型号: QSFP+ Transceiver
兼容品牌: 全系列
封装类型: QSFP+
传输速率: 41.25
传输距离: up to 80km
发射波长: 850nm/CWDM
吸收波长: 850nm/CWDM
事情温度: 商业级0℃～+70℃/工业级-40℃～+85℃ 可选
数字诊断: 带DDM
吸收迅速度: up to 80km
吸收迅速度: up to 80km

Description

QSFP+ Transceiver

F-tone QSFP+ (Quad Small Form-factor Pluggable Plus) is a new Multi-Source Agreement (MSA) for high speed application, such as 40G-BASE, which provide four channels of data in one pluggable interface. Each channel is capable of transferring data at 10Gbps and supports a total of 40Gbps.

The 40Gbps QSFP+ transceiver is well suited for Infiniband and 40GBASE-SR4 / 40GBASE-LR4 applications. It combines the higher density attractions of parallel modules with some of the key advantages normally associated with SFP+ based modules. It is intended for use short reach applications in switches, routers and data center equipment where it provides higher density and lower cost when compared with standard SFP+ modules.

FTCQ-8540G-02 Series    QSFP SR4 / QSFP+ SR4 / QSFP 40G SR4 It is designed to operate over multimode fiber systems using a nominal wavelength of 850nm. The electrical interface uses a 38 contact edge type connector. The optical interface uses an 8 or 12 fiber MTP (MPO) connector.

FTCQ-1640G-10 Series    QSFP LR4 / QSFP+ LR4 / QSFP 40G LR4 It is designed to operate over singlemode fiber system using four 10Gbps CWDM channel in 1300 band. Which is based on two LC connectors for optical connectivity and supports 40Gbps data rate links of up to 10km.

FTCQ-1640G-20 Series QSFP LR4 / QSFP+ LR4 / QSFP 40G LR4 It is designed to operate over singlemode fiber system using four 10Gbps CWDM channel in 1300 band. Which is based on two LC connectors for optical connectivity and supports 40Gbps data rate links of up to 20km.

FTCQ-1640G-40 Series QSFP ER4 / QSFP+ ER4 / QSFP 40G ER4 It is designed to operate over singlemode fiber system using four 10Gbps CWDM channel in 1300 band. Which is based on two LC connectors for optical connectivity and supports 40Gbps data rate links of up to 40km.

Application:

High-speed interconnects within and between switches, routers and transport equipment
Server-Server Clusters, Super-computing interconnections
Proprietary backplanes
Interconnects rack-to-rack, shelf-to-shelf, board-to-board, board-to-optical backplane
40GBASE-LR4 Ethernet links
10GBASE-SR applications
40GBASE-SR4 applications
40GBASE-ER4 Ethernet links
InfiniBand SDR, DDR and QDR applications

Features:

QSFP+ MSA, SFF-8436 compatible
Four independently addressable transmit and receive channels
Highly compact: savings of 60% on edge and board usage compared to four comparable SFP+ modules
Electrically hot-pluggable
XFP-like latch mechanism for ease-of-insertion
Digital Diagnostics Monitoring Interface. allows customer management and monitoring of key modules parameters, analogous to SFP+
Optical connectivity via industry standard MPO/MTP terminated fiber ribbon

Ordering information:

Package	Part No.	Data Rate	Wavelength	Interface	Temp.	DDMI
40GBASE QSFP+	FTCQ-8540G-02	40Gbps	850nm	MPO/MTP	Standard	YES
40GBASE QSFP+	FTCQ-1640G-10	40Gbpcs	CWDM	LC/LC	Standard	YES
40GBASE QSFP+	FTCQ-1640G-20	40Gbpcs	CWDM	LC/LC	Standard	YES
40GBASE QSFP+	FTCQ-1640G-40	40Gbpcs	CWDM	LC/LC	Standard	YES

QSFP Wiki

The Quad (4-channel) Small Form-factor Pluggable (often abbreviated as QSFP or QSFP+) is a compact, hot-pluggable transceiver used for data communications applications. It interfaces a network device motherboard (for a switch, router, media converter or similar device) to a fiber optic cable. It is an industry format jointly developed and supported by many network component vendors, supporting data rates from 4x10 Gbit/s. The format specification is evolving to enable higher data rates; as of May 2013, highest supported rate is 4x28 Gbit/s.

The QSFP specification supports Ethernet, Fibre Channel, InfiniBand and SONET/SDH standards with different data rate options. QSFP+ transceivers are designed to support Serial Attached SCSI, 40G Ethernet, QDR (40G) and FDR (56G) Infiniband, and other communications standards. QSFP modules increase the port-density by 3x-4x compared to SFP+ modules.

QSFP has 38 pins with 4 high-speed TX pairs (CML-I) and 4 high-speed RX pairs.

SFF Committee (May 10, 2013). "SFF Committee Specification SFF-8635 for QSFP+ 10 Gb/s 4X Pluggable Transceiver Solution (QSFP10)"

SFF Committee (May 10, 2013). "SFF Committee Specification SFF-8665 for QSFP+ 28 Gb/s 4X Pluggable Transceiver Solution (QSFP28)"

INF-8438i Specification for QSFP (Quad Small Formfactor Pluggable) Transceiver Rev 1.0 November 2006

SFF-8436 Specification for QSFP+ 10 Gbs 4X PLUGGABLE TRANSCEIVER Rev 4.8 October 31, 2013

Inside QSFP LR4

qsfps-chema

With a port density of three times higher than traditional SFP transceivers, the QSFP can be used to replace four standard SFP modules in space that is only 30 percent larger than a single SFP; The QSFP requires approximately the same front-panel space of an XFP module. Due to the increased capabilities, over 3X (3.11) times more transceivers can be placed in a given area on a switch or product. The QSFP's unique design repackages the existing SFP transceiver in a way which utilizes a 12-fiber ribbon instead of individual fibers.

Benefits of QSFP

Port Density nearly 3x higher than SFP module; Uses approximately same front panel space as XFP module
Support of Ethernet, Fibre Channel, Infiniband and SDH/SONET with data rates up to 5 Gb/s
Transceiver Package and Electrical/Optical Connectors derived from designs currently in production
Industry first Z-pluggable parallel optics transceiver module with multi-vendor support

TX/Sensetivity QSFP

Single mode:

Parameter	Symbol	Min.	Typical	Max.	Unit
SMF	L	-	10&20	-	km
Aggregate Bit Rate	BR_AVE	-	41.25	-	Gbps
Per Lane Bit Rate	BR_LANE	-	10.3125	-	Gbps
Transmitter
Channels wavelength	λ_C	1264.5	1271	1277.5	nm
		1284.5	1291	1297.5
		1304.5	1311	1317.5
		1324.5	1331	1337.5
-20dB spectral width	?λ	-	-	1	nm
Average Launch Power, Each Lane for 20km*^(note3)	Pout/lane	-4	-	2.3	dBm
Average Launch Power, Each Lane for 10km*^(note3)	Pout/lane	-7	-	2.3
Extinction Ratio	Er	3.5	-	-	dB
Output Optical Eye*^(note4)	IEEE 802.3ba-2010 Compliant
Receiver
Channels wavelength	λ_C	1264.5	1271	1277.5	nm
		1284.5	1291	1297.5
		1304.5	1311	1317.5
		1324.5	1331	1337.5
Damage Threshold		3.3	-	-	dBm
Receiver sensitivity in OMA, each lane	Pmins	-	-	-11.5	dBm
Maximum Receive Power, each lane	Pmax	2.3	-	-	dBm
Receiver reflectance	Rr	-	-	-26	dB
LOS De-Assert	LOSD			-11.5	dBm
LOS Assert	LOSA	-20			dBm

For more details and updated spec please refer to pdf.

MultiMode mode:

Parameter	Symbol	Min.	Typical	Max.	Unit
OM3 MMF	L	0.5	-	100	m
Aggregate Bit Rate	BR_AVE	-	40	-	Gbps
Per Lane Bit Rate	BR_LANE	-	10.3125	-	Gbps
Transmitter
Center Wavelength	λ_C	840	850	860	nm
RMS spectral width	RMS	-	-	0.65	nm
Average Launch Power, Each Lane*^(note3)	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*^(note4)	ER	3	-	-	dB
Optical Return Loss Tolerance		-	-	12	dB
Average launch power of OFF, each lane		-	-	-30	dBm
Output Optical Eye*^(note4)	IEEE 802.3ba-2010 Compliant
TX Disable Assert Time	t_off	-	-	100	us
Receiver
Center Wavelength	λ_C	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	-7.9	-	1	dBm
LOS De-Assert, OMA	LOSD	-	-	-7.5	dBm
Receiver reflectance	Rr	-	-	-12	dB
LOS Assert	LOSA	-30	-	-	dBm
LOS Hysteresis*^(note7)		0.5	-	-	dB

For more details and updated spec please refer to pdf.