Finisar Series
FINISAR FTLC9551REPM
- Product description: FINISAR FTLC9551REPM_QSFP28 100G 100M 850NM DOM_liyun tech
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Manufacturer: Finisar
Part Number: FTLC9551REPM
Form Type: QSFP28
Transceiver Type: SR4
Speed Description: 100-Gigabit
Wavelength: 850nm
Media: MMF
Reach: 100m
Connector: MPO
DOM: DOM
1. FINISAR FTLC9551REPM
2. Packaging form: `QSFP28` - Quad Small Form-factor Pluggable 28. This is the current mainstream 100G optical module packaging standard.
The size is slightly larger than the earlier QSFP+. The electrical interface uses 4x25G NRZ or 4x28G PAM4 channels and supports a 100Gbps rate. It has hot-swappable features.
3. Rate: `100G` - Clearly indicates that this is a 100 Gigabit Ethernet (100GbE) optical module.
4. Transmission distance: `100M` - Indicates that the maximum transmission distance of this module over multimode fiber is 100 meters.
5. Wavelength: `850NM` - The working wavelength is 850 nanometers. This is a short wavelength, specifically used for multimode fiber transmission.
6. Fiber type: `850NM` wavelength directly implies that it must use multimode fiber.
7. Connector type: `MPO` - Indicates that the optical interface of the module uses MPO/MTP connectors. For QSFP28 100G SR4/eSR4 modules,
the MPO connector is usually 12-core/8-core fiber (using 4 cores for transmission Tx, 4 cores for reception Rx, and the rest for unused or for extended distance).
8. Technology type: Based on the parameters (QSFP28, 100G, 100M, 850nm, MPO, MMF), it can be inferred that this is a 100GBase-SR4 or 100G-eSR4 optical module.
100GBase-SR4: Defined by the IEEE 802.3bm standard, using 4 parallel 25Gbps NRZ signals, transmitting at least 100 meters (OM3 is 70 meters) over OM4 multimode fiber.
100G-eSR4: Is a vendor-defined extended-distance version, typically capable of transmitting up to about 300 meters over OM4 fiber (depending on the vendor's specification). FINISAR FTLC9551REPM is rated at 100M,
more in line with the standard SR4 definition (ensuring a 100M transmission), but may actually support further distances (such as eSR4 distance).
It is necessary to consult FINISAR's official data manual to confirm its maximum supported distance and specific technology type (SR4 or eSR4).
9. Core Function: Convert the 100Gbps electrical signals of network devices (such as switches and routers) into 4 parallel 25Gbps 850nm optical signals for transmission over multimode fiber (Tx),
and convert the received 4 parallel optical signals back into electrical signals (Rx).
Application Scenarios: The core value of this module lies in providing a high-density, low-cost, and low-power 100G short-distance interconnection solution, mainly applied in the core,
aggregation, and access layers of data centers and enterprise networks:
1. Within data center cabinets (Top-of-Rack to Server):
Connect the 100G QSFP28 ports of TOR (Top-of-Rack) switches to the 100G network cards (NICs) or 100G adapter cards (if the server supports QSFP28) of high-performance servers.
Connect the TOR switch to the 100G ports of storage devices (such as all-flash arrays).
2. Between data center cabinets (Top-of-Rack to End-of-Row/Aggregation):
Connect TOR switches of adjacent cabinets in the same row to aggregation/row-end (End-of-Row/EoR) switches. The 100-meter distance covers the，
wiring requirements between most data center cabinets in the same row or adjacent rows (usually using OM4 optical fiber).
3. Stack interconnection of switches:
Stack core switches or aggregation switches that support 100G QSFP28 ports to provide high-bandwidth stacked links.
4. Interconnection of data center aggregation layer:
Connect aggregation layer switches to core layer switches to provide 100G backbone links within a relatively short distance (such as within the data center room).
5. Interconnection of high-performance computing clusters:
Provide connections between HPC cluster nodes that require high bandwidth and low latency.
6. Core/ backbone of enterprise networks:
Connect core switches or aggregation switches in large enterprise campus networks or building complexes to provide 100G backbone bandwidth.
In addition to FINISAR FTLC9551REPM , Liyuan Tech supply a wide range of other Finisar Series . If you have any need or interest, please feel free to send inquiry to global@chn-liyuan.com
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