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The data volume surge has caused the movement from 10 Gigabit to 40 Gigabit and 100 Gigabit, thus developing significant requirements for 100G fiber optic transceivers. The mainstream in the marketplace is the 100 Gigabit QSFP28 fiber optic transceiver modules because of their less power consumption, excessive port density, and decreased prices through the years. The typical QSFP28 fiber optic transceiver modules are QSFP28 SR4, QSFP28 PSM4, QSFP28 LR4, QSFP28 ER4, and QSFP28 CWDM4, which we apply to encounter different communication distance requirements. In this article, we will analyze the Quad Small Form Factor Pluggable 28 SR4 from the aspects of definition, specifications, applications, working principles, and FAQs.
Definition of QSFP28 SR4:
We have designed the QSFP28 SR4 for short-range transmission within a 100 Gigabit Ethernet networking system with 850nm bandwidth. It is a full-duplex, hot-pluggable fiber optic transceiver module. Its size is small compared to the 100 Gigabit CXP/CFP modules. It supports four independent receive and transmits channels, and every lane can work at 25 Gigabits per second to 70 meters utilizing fiber OM3 or 100 meters using fiber OM4. The power consumption of QSFP28 SR4 is typically lower than 3.5 watts. Nevertheless, QSFP28 100 Gigabit SR4 is entirely adaptable to the standard IEEE 802.3ba and SFP28 MSA, SFP-8636, SFP-8665, RoHS, ECPRI, CPRI as well.
Working Principle of QSFP28 SR4:
The QSFP28 SR4 transceiver module transfers at the transferring end and changes parallel electric input signs into parallel fiber optic signs through Layser Array and then transmits in parallel upon the MPO/MTP multimode ribbon optical fiber. After arriving at the receiving end, a PIN array changes the parallel fiber optic signals into similar electric signals.
Datasheet of QSFP28 SR4:
We have manufactured all Quad Small Form Factor Pluggable 28 SR4 fiber optic transceiver modules to match up to the enterprise level, and numerous customers have recognized them. They are compatible with above 200 vendors like Cisco, Arista, Juniper, Dell, Brocade, etc. Moreover, they are entirely adaptable to the standard Quad Small Form Factor Pluggable 28 MSA, IEEE 802.3ba 100GbE SR4 QSFP28, and the standard IEEE 802.3bm CAUI-4.
Specifications of 100G QSFP SR4:
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Advantages of 100G QSFP SR4:
1. All 100G QSFP SR4 modules should run through the programming and a broad series of diagnostic platform tests to confirm their compatibility and performance. Furthermore, 100GBASE-SR4 fiber optic modules are entirely compatible with non-QSFP 100G SR4 optical transceivers as they meet the associated industry's standard specifications.
2. With integrated good-quality chips, 100G QSFP SR4 optical transceivers charge ≤ 1.8W less power consumption and creates a low-priced choice within your 100 Gigabit deployment.
3. We have provided an exchange service to 100G QSFP SR4 optical transceivers within one year with a five-year guarantee to deal with your concerns.
4. We can immediately reconfigure 100G QSFP SR4 modules for any networking hardware with the support of the coding tool of the transceiver’s Box. Thus, we program the Quad Small Form Factor Pluggable SR4 module on-site to be adaptable to above 200 OEM appliances flexibly and efficiently.
5. We have extensive stock in the US, GE, AU, SG, and RU warehouses so that we can ship the 100G QSFP28 SR4 modules immediately after the order.
Cabling and Connectivity of 100G QSFP SR4:
Data centers and enterprises are outgrowing 40Gb/s and 10Gb/s networks for connectivity of 100Gb/s. The QSFP 100G SR4 is appropriate in short-range 100 Gigabit direct link and 25 Gigabit-100 Gigabit migration.
100 Gigabit to 100 Gigabit Direct Link:
Directly plug two QSFP28 100G SR4 modules within corresponding ports upon the switches. After that, link them with OM3 or OM4 MTP fiber optic trunk cable (depending on your expected range). The process to achieve a straight 100G link is not very much different from 10 Gigabit/100 Gigabit.
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25 Gigabit to 100 Gigabit Migration:
Enhancing the network system from 25 Gigabit to 100 Gigabit is an easy migration solution. We provide a sensible way with the help of four SFP28 25G SR optical transceivers, which have a connection with MTP harness wire.
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100G QSFP SR4 FAQs:
Q1: How can we differentiate between 100G QSFP and QSFP28?
ANS: They both are similar. We initially defined the QSFP for below 10G speeds. When we adopted it for 40 Gigabit, we gave it the name QSFP+ to enable the best aggregate performance. Later, we adopted the QSFP for 100 Gigabit, but we should upgrade the electric interface to control 25 Gigabits per second/lane. For 100 Gigabits, the electric interface can manage 28 Gigabits per second. Hence the industry and engineering name are Quad Small Form Factor Pluggable 28.
Q2: What can happen while plugging QSFP 100G SR4 optical transceiver that utilizes more than 3.5 watts?
ANS: We have designed all QSFP 100G SR4 ports to control QSFP28 SR4 optical transceivers that pull out 3.5 watts. If a QSFP 100G draws more than 3.5 watts, We do not guarantee the quality as we have more dependencies like ambient temperature, elevation, airflow direction, etc.
Q3: Is there a possibility of interoperability between QSFP 100G SR4 interfaces and 100GbE SR10?
ANS: The QSFP 100G SR4 module possesses four electric lanes, insufficiently supporting the 10G electric interface's ten lanes. A QSFP 100G SR4 only supports 4x25 Gigabits per second or 4x10 Gigabits per second electric interfaces, which we can use as 4x25 Gigabit Ethernet or 4x10 Gigabit Ethernet, but never 10x10 Gigabit Ethernet. Consequently, QSFP 100G SR4 does not interoperate with 10GbE SR10 transceivers.
Q4: Is the cleaning of a transceiver fiber optic connector necessary? How can we clean the 100G QSFP28 SR4 transceiver?
ANS: Contamination and dust can accumulate upon transceiver connectors, creating problems like decreasing the optical launch power. For a strong connection, GBIC suggests cleaning the two connectors every time while disconnecting and reconnecting them.
Q5: Will the modules QSFP28 SR4 also operate with 100 Gigabit IB?
ANS: Yes, the Quad Small Form Factor Pluggable 28 SR4 modules will operate with 100 Gigabit IB.
Q6: Can this fiber optic provide back to 4x25 Gigabytes modes with the breakout cable utilizing the “speed force 25 Gigabit full” CONFIG command upon the interface?
ANS: Yes, 100G QSFP28 SR4 provides back to 4x25 Gigabytes mode with the breakout cable utilizing the “speed force 25 Gigabit full” CONFIG command upon the interface.
Q7: Does QSFP SR4 100G transceiver support the mode OTU (111.8 Gigabytes p second) or 112 Gigabit rate?
ANS: No, QSFP28 SR4 100G only supports 100 Gigabit rate because it is the single rate transceiver. CFP2 LR, CFP LR4, and CFP ER4 transceivers are like dual-rate transceivers and support 100 Gigabit and 112 Gigabit speeds. We have 4XDFB transmitting lasers and every channel with 28 Gigabytes per second speed.
Q8: Do GBIC 100G QSFP28 SR4 modules enable customized service?
ANS: Yes, all GBIC 100G QSFP28 SR4 transceivers support customized service. We admire any question for customized brands and solutions regarding your particular preference and demands. You only have to provide your model type or compatible brands for us.
