Finisar Series
FINISAR FTLC9558REPM FTLC9558REPM-TE
- Product description: FINISAR FTLC9558REPM FTLC9558REPM-TE_100GBase-SR QSFP28 Transceiver (MMF, 850nm, 100m, MPO, DOM)_liyuan tech
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Manufacturer: FINISAR
Part number: FTLC9558REPM FTLC9558REPM-TE
Form Type: QSFP28
Transceiver Type: SR4
Speed Description: 100-Gigabit
Wavelength: 850nm
Media: MMF
Reach: 100m
Connector: MPO
DOM: DOM
Hot-pluggable QSFP28 form factor
Supports 103.1Gb/s aggregate bit rate
Power dissipation < 2.5W
RoHS-6 compliant
Commercial case temperature range of 0°C to 70°C
Single 3.3V power supply
Maximum link length of 100m on OM4 Multimode Fiber
(MMF)
4x25Gb/s 850mm VCSEL-based transmitter
4x25G electrical interface
Single MPO12 receptacle
I2C management interface
Finisar FTLC9558REPM FTLC9558REPM-TE is a very typical 100G QSFP28 SR4 optical module.
The key information in its model clearly describes its main features:
1. QSFP28: The module's packaging form. This is a standard hot-swappable optical module with a 100 Gbps rate.
2. 100G: The total data transmission rate of the module is 100 Gigabit per second.
3. 100M: The maximum transmission distance supported by the module is **100 meters**.
4. 850nm: The optical wavelength used by the module is **850 nanometers**. This is the standard wavelength for short-wavelength multimode fiber communication.
5. MPO: The optical interface type of the module is **MPO/MTP** connector (usually **MPO-12** male connector).
Product details
1. Technical standards: Complies with the 100GBASE-SR4 IEEE 802.3bm Ethernet standard and the 100G VCSEL MSA standard.
2. Working principle:
Uses parallel optical technology.
Internally integrates **4 independent transmission channels (Tx)** and **4 independent reception channels (Rx)**.
Each channel operates at 25.78125 Gbps (25G NRZ).
The optical signals from the 4 Tx channels are generated by the VCSEL laser array (850nm) in the module and combined and sent out through a ribbon fiber with an MPO-12 connector (usually containing 12 fibers).
At the receiving end, the optical signals from the 4 Rx channels are input into the module by a PIN photodetector array and converted into electrical signals.
3. Fiber type:
Must use multimode fiber (MMF).
It is usually recommended to use OM3 or OM4 level multimode fiber to achieve the nominal 100 meters distance. On OM3, it can reach 70-100 meters, and on OM4, it can reach 100 meters or longer (depending on the specification sheet).
Use MPO/MTP backbone patch cords or distribution frames. This patch cord connects the MPO interface of the module at one end and is usually also an MPO interface，
(for connecting distribution frames) or divided into 4 duplex LC interfaces (for connecting devices that support LC, but special branch patch cords are required at this time).
4. Interface:
Electrical interface: QSFP28 standard gold finger interface (host side), connected to devices such as switches/routers/network cards through 4 differential signal pairs (each 25G NRZ).
Optical interface: 1 **MPO-12 male connector** (with guiding pins).
5. Main application scenarios:
Internal data center **server to top-of-rack switch (ToR) connection.
Internal data center **short-distance interconnection between switches (especially within the same cabinet or adjacent cabinets).
Interconnection of high-performance computing cluster nodes.
Any 100G Ethernet link with a distance of 100 meters or less using multimode fiber.
6. Key advantages:
Cost-effectiveness: In 100G short-distance applications, SR4 is usually the lowest-cost solution.
Low power consumption: Compared to long-distance modules (such as LR4) or single-mode solutions, SR4 modules have lower power consumption (usually in the < 3.5W level).
Stable and reliable: Based on mature VCSEL and parallel optical technology, it is one of the most mainstream 100G access solutions in data centers.
7. Possible features related to model FTLC9558REPM (please refer to the specific specification sheet for confirmation):
Digital Diagnostic Monitoring (DDM/DOM): Almost certainly supported. It can monitor parameters such as temperature, voltage, Tx/Rx optical power, bias current, etc. of the host monitoring module.
Operating temperature range: Usually the commercial-grade temperature range (0°C to 70°C).
Power consumption: Usually between 2.5W - 3.5W.
Compliance: Compliant with environmental protection requirements such as RoHS. "REPM" suffix: Usually indicates the standard reliability level and product code of Finisar/II-VI.
May include specific hardware versions or meet specific customer requirements.
In addition to FINISAR FTLC9558REPM FTLC9558REPM-TE , Liyuan Tech supply a wide range of other Finisar Series transceivers. If you have any need or interest, please feel free to send inquiry to global@chn-liyuan.com
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