Author: Fiber-MART.COM

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Hohe-Dichte-MTP/MPO-Kabelbaugruppen

Gegenwärtig ist die Migration zu einem 40G/100G-Netzwerk die populäre und unwiderstehliche Tendenz für ein Datenzentrum-Verkabelungssystem geworden, was die Suche nach einer größeren Bandbreite und einer höheren Dichte von faseroptischer Konnektivität in Rechenzentren und optischen Netzwerken mit sich bringt. Dann ist es eine große Herausforderung, ein Gleichgewicht zwischen hoher Kapazität und geringem Stromverbrauch herzustellen. Glücklicherweise bietet die MTP/MPO-Verkabelungstechnologie eine konstruktive und zuverlässige Lösung, um eine bessere Netzwerkleistung zu erzielen. In diesem Artikel werden einige wesentliche Komponenten dieser Verkabelungslösung vorgestellt.
MTP/MPO-Trunkkabel
MTP/MPO-Trunkkabel verbinden Module als permanente Verknüpfung. Die Trunkkabel sind mit 12, 24, 48 und 72 Fasern erhältlich. Sie werden in der Regel für die Verbindung von Kassetten, Panels oder robusten MPO-Fanouts eingesetzt und ermöglichen den schnellen Einsatz von High-Density-Backbone-Verkabelungen in Rechenzentren und anderen Umgebungen mit hoher Glasfaser. Darüber hinaus bietet es auch viel Flexibilität und Komfort, sobald Sie den Stecker-Stil in den Patch-Panels ändern müssen. Anstatt den Stecker am Kabelstrang zu wechseln, installieren Sie einfach eine neue Kassette mit der neuen Steckerart auf der Cross-Connect-Seite des Patch-Panels. Die Vorteile des MTP/MPO-Trunkkabel umfassen im Allgemeinen:
Hochwertige MTP/MPO-Trunkkabel werden werkseitig vorkonfektioniert, getestet und zusammen mit den Testberichten verpackt. Diese Berichte dienen der langfristigen Dokumentation und Qualitätskontrolle.
Kabellänge verringern-Diese Stammkabel haben sehr kleine Durchmesser,die das Kabelvolumen verringern und die Klimatisierungsbedingungen in Rechenzentren verbessern.
Zeitsparen: Mit dem speziellen Plug-and-Play-Design können MTP/MPO-Trunkkabel integriert und sofort eingesteckt werden. Dies trägt erheblich zur Reduzierung der Installationszeit bei.
MTP/MPO-Breakoutkabel
MTP/MPO-Breakoutkabel bieten einen Übergang von Multifaserkabeln zu einzelnen Fasern oder Duplex-Steckverbindern. Das als MTP/MPO-Kabelbaum oder Fan-out-Kabel bekannte MTP/MPO-Breakoutkabel verfügt an einem Ende über einen einzelnen MTP-Stecker, der in 6 oder 12 Stecker ausbricht. Diese Steckertypen können LC, SC, ST, etc. sein Es ist in 4-, 6-, 8- oder 12-Faser-Bandkonfigurationen mit Längen von ca. 10, 20, 30 Metern und anderen kundenspezifischen Längen erhältlich. Breakoutkabel bieten ein zuverlässiges und kosteneffektives Verkabelungssystem für die Migration von Legacy-10G auf 40G/100G-Ethernet mit höherer Geschwindigkeit. Die folgenden sind die Vorteile von MTP/MPO-Breakoutkabel:
Einfaches Deployment-Das vom Hersteller abgeschlossene System spart Installations- und Netzwerkrekonfigurationszeiten.
Raumsparen – Die aktive Ausrüstung und das Backbone-Kabel sind gut, um Platz zu sparen.
Einfache Entwicklung – Das vom Hersteller abgeschlossene System spart Installations- und Netzwerkrekonfigurationszeiten.
Reliability-Hohe Standardkomponenten werden im Herstellungsprozess verwendet, um die Produktqualität zu garantieren.
MTP/MPO-LWL-Adapter-Patchpanel
Um das Problem der Verkabelungsüberlastung, das mit 40G/100G-Netzwerkverbindungen verbunden ist, effizient zu behandeln, hat sich die Verwendung eines hochdichten Faser-Patch-Panels als eine ideale Wahl erwiesen. Das MTP/MPO-LWL-Adapter-Patchpanel wurde entwickelt, um Flexibilität und einfache Netzwerkbereitstellung zu gewährleisten und die Migration von einer 10G- auf eine 40/100G-Infrastruktur zu erleichtern. Es wird in Netzwerkanwendungen mit hoher Dichte für Querverbindungen in Hauptverteilungs-, Horizontalverteilungs- und Geräteverteilungsbereichen verwendet. Diese LWL-Adapter-Patchpanel gewährleistet eine effiziente Platznutzung, schnelle Bereitstellung und höchste Zuverlässigkeit bei niedrigsten installierten Kosten. Dies wiederum sorgt für eine hohe Rendite.
Fazit
Es besteht kein Zweifel, dass das MTP/MPO-Verkabelungssystem tatsächlich eine ideale Lösung für Netzwerkinfrastrukturen mit hoher Dichte bietet, was die Schwierigkeiten der Migration auf das 40/100G-Netzwerk erleichtert.

Was ist der Unterschied: OM3 vs OM4

OM3 und OM4 sind zwei gebräuchliche LWL Multimode, die in lokalen Netzwerken verwendet werden, typischerweise in der Backbone-Verkabelung zwischen Telekommunikationsräumen und im Datenzentrum zwischen Hauptnetzwerk- und SAN-Switches (Storage Area Network). Beide dieser Fasertypen werden als laseroptimierte 50/125-LWL-Multimode, was bedeutet, dass beide einen Kern mit einem Kerndurchmesser von 50μm und einen Mantel mit 125μm Durchmesser haben, eine spezielle Beschichtung, die verhindert, dass Licht aus dem Kern austritt. Beide Fasertypen verwenden die gleichen Anschlüsse, den gleichen Abschluss und die gleichen Transceiver-oberflächenemittierende Laser mit vertikalem Resonator (VCSELs), die Infrarotlicht mit 850 Nanometern (nm) emittieren. LWL OM3 ist vollständig kompatibel mit OM4. Mit so vielen Ähnlichkeiten und oft mit der gleichen Farbe Aqua Kabelmantel und Stecker hergestellt, kann es schwierig sein, diese beiden Arten von Fasern auseinander zu unterscheiden. Also, was ist der Unterschied zwischen beiden ? Beziehen sich diese beiden Arten von Fasern auf dasselbe?
Was ist der Unterschied: OM3 vs OM4
Tatsächlich besteht der Unterschied zwischen om3 und om4 nur in der Konstruktion des Glasfaserkabels. Der Unterschied in der Konstruktion bedeutet, dass das OM4-Kabel eine bessere Dämpfung aufweist und mit einer höheren Bandbreite als LWL OM3 arbeiten kann. Was ist der Grund dafür? Damit eine Glasfaserverbindung funktioniert, hat das Licht vom VCSEL-Transceiver viel Energie, um den Empfänger am anderen Ende zu erreichen. Es gibt zwei Leistungswerte, die dies verhindern können-optische Dämpfung und modale Dispersion.
Dämpfung ist die Verringerung der Leistung des Lichtsignals, wenn es übertragen wird (dB). Die Dämpfung wird durch Lichtverluste durch die passiven Komponenten wie Kabel, Kabelspleiße und Anschlüsse verursacht. Wie oben erwähnt, sind die Anschlüsse die gleichen, so dass der Unterschied in der OM3- und OM4-Leistung im Verlust (dB) im Kabel liegt. OM4 LWL Multimode Kabel verursachen aufgrund ihrer Konstruktion geringere Verluste. Die maximale Dämpfung, die von den Standards zugelassen wird, ist unten gezeigt. Sie können sehen, dass die Verwendung von OM4 Ihnen geringere Verluste pro Meter Kabel bringt. Die niedrigeren Verluste bedeuten, dass Sie längere Verbindungen haben können oder mehr verbundene Verbinder in der Verbindung haben.
Maximale Dämpfung bei 850 nm erlaubt: OM3<3.5 dB/km; OM4<3.0 dB/km
Licht wird in verschiedenen Moden entlang der Faser übertragen. Aufgrund der Unvollkommenheiten in der Faser kommen diese Moden als etwas unterschiedliche Zeiten an. Wenn dieser Unterschied zunimmt, gelangen Sie schließlich zu einem Punkt, an dem die übertragenen Informationen nicht decodiert werden können. Dieser Unterschied zwischen dem höchsten und dem niedrigsten Modus wird als modale Dispersion bezeichnet. Die modale Dispersion bestimmt die modale Bandbreite, mit der die Faser arbeiten kann, und dies ist die Differenz zwischen OM3 und OM4. Je niedriger die modale Dispersion ist, desto höher ist die modale Bandbreite und desto größer ist die Menge an Information, die übertragen werden kann. Die modale Bandbreite von OM3 und OM4 ist unten gezeigt. Die höhere Bandbreite, die in OM4 zur Verfügung steht, bedeutet eine kleinere Modendispersion und erlaubt somit, dass die Kabelverbindungen länger sind oder höhere Verluste durch mehr verbundene Verbinder erlauben. Dies bietet mehr Optionen beim Betrachten des Netzwerkdesigns.
Minimale Glasfaserbandbreite bei 850 nm: OM3 2000 MHz·km; OM4 4700 MHz·km
Wählen Sie OM3 oder OM4?
Da die Dämpfung von OM4 niedriger als die LWL OM3 ist und die modale Bandbreite von OM4 höher als OM3 ist, ist die Übertragungsdistanz von OM4 länger als OM3. Details sind in der folgenden Tabelle aufgeführt. Wählen Sie entsprechend Ihrer Netzwerkskala einen geeigneteren Kabeltyp.
Da OM4 besser als OM3-Kabel ist, ist das OM4-Kabel in der Regel doppelt so teuer wie das OM3-Kabel. Dies kann ein großer begrenzter Faktor für die Anwendung von OM4-Kabeln sein. Wenn Sie sich jedoch entscheiden, in fiber-mart.COM einzukaufen, erhalten Sie möglicherweise viel billigere OM4-Fasern, fast die gleichen wie die LWL OM3. Jedes OM3-oder OM4-Kabel kann Ihren individuellen Verkabelungsanforderungen gerecht werden. Wählen Sie einfach den am besten geeigneten für Ihr Netzwerk, um weniger zu kosten und mehr zu erreichen.

The ABCs of Tunable SFP+ & Tunable XFP DWDM Optics

Tunable XFP transceiver and tunable SFP+ transceiver are the hot-swap DWDM Tunable optics used in 10Gbps SONET/SDH, Fibre Channel and Gigabit Ethernet applications. Tunable DWDM transceiver is a unique device which allows customers to set the channel that the laser emits. Generally, the tunable optics is for C-Band 50GHz, starting from channel 16 up to 61 (depends on the manufacturer of the Router/Switch and which channels it supports). This article will shed light on the revolutionary Tunable DWDM transceivers.
Tunable Optics Gives You a lot of Flexibility
The introduction of these new optical components enable telecom, datacom, and enterprises operating a DWDM network to significantly reduce their sparing costs, improve their operational efficiencies, and turn up new customers or circuits in a fraction of the time it would normally take.
SFP+ Tunable Transceiver
10G DWDM tunable SFP+ transceiver is compliant to SFP+ MSA. This flexible transceiver can be tuned to any one of C-band channels with 50GHz spacing, supporting data rate of 10 Gbit/s-11.3 Gbit/s. DWDM tunable SFP+ transceiver operates over LC singlemode fiber for a max linking length of 80km.
XFP Tunable
Tunable XFP can be tuned from channel 1561.83 to 1530.33. This tunable optic has a reach of around 80km depending on the fiber quality and the mux type. The Cisco version is the “ONS-XC-10G-C” and there are more brands like Juniper, Ciena, Extreme and Brocade which are offering these optics.
Tunable Optics in DWDM networks
Typically, a DWDM network is set up with fixed wavelength DWDM transceivers. The laser hardware inside a DWDM optics has a fixed wavelength for transmitting over a DWDM channel. That means if one channel fails, you need this specific channel device in your spare part stock.
A DWDM network can be used with 40 channels, so you need to stock 40 fixed wavelength DWDM modules. However, with Tunable SFP+ or XFP modules, you have the possibility to reduce OPEX or be flexible in terms of spare parts and stock.
To build a well-organized DWDM networks, you are supposed to scale up a wavelength planning for ordering the right types. There needs to be a documentation which specific channel is already in use at different locations. By the use of Tunable module, you just need to count the unused DWDM ports instead of each wavelengths and order the needed amount of only this one product. This reduces a lot of complexity and makes the planning so much easier.
Three Tips Before Using Tunable Optics
More expensive Than Fixed Wavelength DWDM Optics
Tunable transceivers renown as spare-optics, provide the flexibility to customers and reduce the amount of spare optics you need r to hold in stock. Owing to the special tunable laser in tunable optics, they are between two and four times more expensive than the regular static DWDM optics.
The following figure shows the cost comparison between DWDM SFP+ and Tunable SFP+ optics from fiber-mart.COM and Flexoptics.
Some Switches/Routers Do Not Support CLI Command
In fact, the Tunable XFP/SFP+ can be tuned in different ways. It is such a new technology that currently, most high-end devices make it possible to tune over the command line interface, but not every switch or router is capable of this. For example the ASR9000 and the MX80 can be used for this but the EX4200 series from Juniper does not support this, which is indeed the biggest challenge in the tuning of these optics.
Not the mainstream in Metro & OTN Networks Now
Metro Ethernet network mainly consists of IP nodes, e.g. switches and routers interconnected by numbers of 10G interfaces. Network installers usually implement DWDM connectivity by using colored WDM transceivers in 10G ports and directly connect to dark fiber to line through passive optical multiplexer. According to the above description, only few of the IP node (optical switches and routers) support tuning wavelength of CLI commands.
And as for Optical Transport Networks (OTN), it is focusing on carrying payload and multiplexing, switching and supervising networks in optical Layer 1 domain. But how about tunable optical transceivers in OTN network..? Still, the mainstream is conventional fixed wavelength DWDM transceivers.
This compact device allows end-users to self-select any DWDM channel for each tunable SFP+ transceiver, tune it, and set it as a fixed-channel DWDM optic on demand. The whole DWDM sparing costs can be substantially reduced through the use of Tunable optics. Therefore, it would be popular in the near future.
Conclusion
In fiber optical networks where fixed DWDM channel XFP/SFP+ transceivers are currently used, changing to Tunable XFP/SFP+ transceivers offers the potential for large inventory stock reduction since all wavelengths can now be covered with one transceiver module. Tunable module will make itself a desirable choice to replace the fixed wavelength used in many networks.

How to Understand PoE and PoE+ Switches

Power-over-Ethernet (PoE) is the technology that allows network switches to transmit power and data through an Ethernet cable at the same time. PoE switch streamlines both of the processes of powering and providing data to the device, which makes it a straightforward and reliable device for home network and small enterprise application. This article describes two types of PoE (PoE and PoE+) that are commonly used and provides information on what types of PoE can be used according to different applications.
PoE Versus non-PoE Technology
Power over Ethernet technology facilitates powering a device (such as an IP phone, IP Surveillance Camera, or NVR recorder) over the same Ethernet cable as the data traffic. Figure 1 shows an Ethernet Network with IP camera, PoE Switch, NVR recorder and Wireless router. Compared to non-PoE devices, PoE devices feature with flexibility that allow you to easily place endpoints anywhere in the business, even places where it might be difficult to run a power outlet.
PoE Versus PoE+ Technology
PoE was first defined in the IEEE 802.3af standard. PoE devices utilize PoE standard, which can provide up to 15.4W of DC power to each port. A later standard, IEEE 802.3at, known as PoE+, increases the amount of power to 30 W. The major difference between 802.3af (PoE) and 802.3at (PoE+) is that PoE+ PSEs can provide almost twice as much power over a single Ethernet cable.
Can PoE+ devices work over PoE Ports, Or vice versa? The PoE+ standard provides support for legacy PoE devices, meaning that an IEEE 802.3af powered device (PD) can operate normally when connected to IEEE 802.3at (PoE+) power sourcing equipment (PSE). PoE+ PSEs can supply power to both PoE and PoE+ PDs. However, as PoE+ PDs require more power than PoE PSEs can provide, PoE PSEs can only supply power to PoE PDs.
PoE Switch Or PoE+ Switch
Whether to use PoE or PoE+ switch for your network, you need to calculate your required power budget carefully for all of the PDs you plan to connect. PoE+ IEEE 802.3at devices can supply a maximum of 30 watts per port, while PoE IEEE 802.3af devices can supply a maximum of 15.4 watts per port. However, some power is always lost over the length of the cable, and more power is lost over longer cable runs. The minimum guaranteed power available at the PD is 12.95 watts per port for PoE and 25.5 watts per port for PoE+.
For most endpoints, 802.3af is sufficient but there are devices, such as Video phones or Access Points with multiple radios, which have higher power needs. It’s important to point out that there are other PoE standards currently being developed that will deliver even high levels of power for future applications. Optical switches have a power budget set aside for running the switch itself, and also an amount of power dedicated for PoE endpoints.
fiber-mart PoE Switches
fiber-mart POE switches can supply power to network equipment such as weather-proof IP cameras, AP and IP telephones. They are featured with high flexibility, high stability and high resistance to electromagnetic interference. All fiber-mart PoE switches come with a one-year limited warranty, including any quality problems during the free maintenance. The following above shows 1G PoE Switch with 24 1000BASE-T and 4 SFP ports.

Introduction to Semiconductor Optical Amplifier

Optical amplifier, with the introduction in 1990s, conquered the regenerator technology and opened doors to the WDM technology. It is mainly used to amplify an optical signal directly, without the need to first convert it to an electrical signal. There are many types of optical amplifiers, namely Raman amplifiers, erbium doped-fiber amplifiers (EDFAs), and semiconductor optical amplifier (SOA). This article will make a clearer introduction to SOA amplifier, and analyze its advantages and disadvantages.
The Basics of Semiconductor Optical Amplifier (SOA)
SOA optical amplifiers use the semiconductor as the gain medium, which are designed to be used in general applications to increase optical launch power to compensate for loss of other optical devices. Semiconductor optical amplifiers are often adopted in telecommunication systems in the form of fiber-pigtailed components, operating at signal wavelengths between 0.85 µm and 1.6 µm and generating gains of up to 30 dB. Semiconductor optical amplifier, available in 1310nm, 1400nm, 1500nm, 1600nm wavelength, can be used with singlemode or polarization maintaining fiber input/output.
Key Points of SOA Amplifier
1310 nm, 1400 nm, 1550 nm and 1610 nm wavelength selectable
High fiber-to-fiber gain of 20 dB
Up to 16 dBm output
1 MHz with 10 ns pulse width (optional)
PM Panda fiber input/output (optional)
Similar to lasers, but with non-reflecting ends and broad wavelength emission
Incoming optical signal stimulates emission of light at its own wavelength
Process continues through cavity to amplify signal
Working principle of SOA amplifier
The basic working principle of a SOA is the same as a semiconductor laser but without feedback. SOAs amplify incident light through simulated emission. When the light traveling through the active region, it causes these electrons to lose energy in the form of photons and get back to the ground state. Those stimulated photons have the same wavelength as the optical signal, thus amplifying the optical signal.
SOA Over EFDA in DWDM Networks
As the solution below, 120km Metro Networks by Using an SOA amplifier. You may wonder why not use EDFA in the above networks.
Theoretically, SOA optical amplifiers are not comparable with EDFA in the terms of performance. The noise figure of SOA optical amplifier is typically higher, the gain bandwidth can be similar, SOAs exhibit much stronger nonlinear distortions in the form of self-phase modulation and four-wave mixing. Yet, the semiconductor optical amplifier is of small size and electrical pumped, which is often less expensive than EDFA. Additionally, SOA can be run with a low power laser.
How to Choose SOA Optical Amplifier?
When selecting SOA amplifier, you have to check the every detailed parameter in the product data sheet. But, seriously, do you understand it? No, please read the following part.
The key parameters used to characterize a SOA amplifier are gain, gain bandwidth, saturation output power and noise.
Gain is the factor by which the input signal is amplified and is measured as the ratio of output power to input power (in dB). A higher gain results in higher output optical signal.
Gain bandwidth defines the range of bandwidth where the amplification functions. A wide gain bandwidth is desirable to amplify a wide range of signal wavelengths.
Saturation output power is the maximum output power attainable after amplification beyond which no amplification is reached. It is important that the SOA has a high power saturation level to remain in the linear working region and to have higher dynamic range.
Noise defines the undesired signal within the signal bandwidth which arises due to physical processing in the amplifier. A parameter called noise figure is used to measure the impact of noise which is typically around 5dB.
Conclusion
SOA amplifier is the economic, high-performance solution for long-hual WDM networks. SOA amplifier, due to its features, can be used in Booster and in-line amplification, optical network, general purpose test and measurement and fiber sensing. However, it also has its limit. In semiconductor optical amplifiers, electron-hole recombination occurs which will affect the performance of the whole line. fiber-mart offers EDFA, SOA, Raman optical amplifiers of excellent quality and price.

400G CFP8 PAM4 & 400GBASE-SR16 NRZ Transceiver Modules

With the price of 100G QSFP28 optics and CFP form factors (CFP module/CFP2/CFP4) dropping down in 2017, 100G technology is becoming more and more popular among data center managers and IT pros in order to cope with the ever-lasting bandwidth needs. However, 100G is not the finish line. CFP multimode source agreement (MSA) demonstrated CFP8 (16X 25 Gb/s) form factor for 400 Gigabit Ethernet at OFC 2017. Although CFP8 module is still in development, it is assured to be popular in the near future. Therefore, this article will have a clearer introduction to 400G CFP8 PAM4 and NRZ modules, and compare with the former CFP modules and 400G CDFP.
Introduction to 400GbE CFP8 Modules
CFP8 module is the latest developing CFP from factor version, which supports eight times and four times the bandwidth density of CFP and CFP2 form factors, respectively. The CFP8 interface supports up to 16 different lanes in each direction with nominal signaling rates of 25Gb/s or 26Gb/s per lane, and either NRZ or PAM4 signaling. As the above image shows, CFP8 is approximately the size of a CFP2 optics. This interface has been generally specified to allow for 16 x 25 Gb/s and 8 x 50 Gb/s mode.
400G CFP8 FR8 and LR8 Transceivers with PAM4 Technology
CFP8 PAM4 optics, compliant with IEEE 802.3bs 400GBASE-FR8 & LR8 electrical interface specifications, offers higher receiver bandwidth capacity for reach up to 2km and 10km. The 400GBASE-FR8 & LR8 consumes less than half the power per GB compared to a 100G CFP4 msa solution. CFP8 optics uses LC duplex fiber cables.
The PAM4 stands for pulse amplitude modulation with four levels. Instead of driving the laser to generate one of the two output amplitudes, like NRZ, PAM4 technology generates four different amplitude levels, meaning a network based on PAM-4 can send twice as much data as an NRZ version.
CFP8 400GBASE-SR16 with NRZ Technology
CFP8 400GBASE-SR16 modules focus on non-return to zero (NRZ) signal modulation Scheme. To use an analogy, it means you’re sending signals in the most simple format: “light on” and “light off.” A ‘1” is transmitted as pulse of light whereas ‘0” is no light output. Based on the currently available fast VCSEL light sources only achieving data rates of 25G, sixteen channels must transmit in parallel to create a 400G data stream.
Due to the design simplicity NRZ, the modulation format of choice for all data rates up to 25Gb/s. 400GBASE-SR16 CFP8 transceivers requires 16 fiber pairs to support a total of 400Gb/s with MPO multimode cables.
What’s New With CFP8 Module?
A CFP8 module is a hot pluggable module. Compared with the former modules, the control and status reporting functions between a host and a CFP8 module use non-data control and status reporting pins on the 124-pin connector. There are three Hardware Control pins, two Hardware Alarm pins, and four pins dedicated to the MDIO interface.
Compared to CFP2/CFP4 MSA Optics
CFP8 is the proposed CFP8 from factor by MSA member companies. It maintains the large size of CFP form factor (nearly the size of CFP2, larger than CFP4 MSA modules), but supports 4x100G i.e. 4x the CFP2. Besides this, CFP8 uses less power than the former CFP form factor modules. There are 400GBASE-SR16 for parallel MMF 16x25G NRZ, and 400GBase-FR8/LR8 duplex SMF 8x50G PAM4 WDM.
CFP8 Vs. CDFP
CFP8 is not the first released 16x25G= 400G modules, but CDFP. 400G CDFP module (CD=400 in Latin), is the four generation CFP form factor. Providing a high level of integration, performance and long-term reliability, the CDFP 400 Gbps interface is available in short- and long-body versions. The specifications are compatible for use with direct attach cables, active optical cables, and connectorized optical modules. The CDFP module will support:
5 meter direct attach cables
100 meter multimode fiber
500 meter parallel single‐mode fiber
2 kilometers of duplex single‐mode fiber
The compact modules are well suited for low power applications using copper, VCSEL or silicon photonics based technology. They also targeted InfiniBand EDR hydra cables and 128GFC applications but so far little market segment pick up. Though relatively new with 2014 and 2015 rev releases, CDFP may be short lived due to the smaller more efficient developing set of CFP8 solutions.
Latest Trend With 400 Gb/s in the Industry
While 400 GbE standard is still a few years away, the need for 400 Gb/s interfaces is here today. The CDFP form factor is already being used in proprietary interfaces to interconnect high performance servers and will soon be used to interconnect switch and router chassis. 400G CFP8 FR8/LR8 PAM4 and 400GBASE-SR16 modules had been displayed at OFC 2017. Finisar, Fujitsu, and oclaro, etc MSA member enterprises will introduce low profile 400G modules in a short period.
These proprietary chassis interconnects have always been massively parallel and will continue because they provide the massive bandwidth needed to interconnect equipment so that multiple chassis perform as one big chassis. While 16 lanes is a fairly wide interface, multiple applications need the maximum amount of bandwidth that can only be provided by many parallel lanes running at the fastest speed available. It seem that CFP8 with the same 16 MPO connectors has much potential than CDFP modules. fiber-mart.COM offers a large stock MSA-compliant optical transceivers, including 100G CFP/CFP2/CFP4 MSA, CXP, and QSFP28 transceiver modules. We will keep in path with the informative world, and provide the best services & telecom products to all of our customers.