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Help Center25Gb/s SFP28 SR MMF 850nm 100m LC DDM Module
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25G SFP28 SR 850nm 100m Transceiver RSFP28-8525G-SRD
Product description
Rollball’s RSFP28-8525G-SRD 25Gb/s SFP28 transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the VCSEL laser and the PIN photo-detector .The module data link up to 100m in 50/125um multimode optical fiber.
The SFP28 SR module electrical interface is compliant to SFI electrical specifications. The transmitter input and receiver output impedance is 100 Ohms differential. Data lines are internally AC coupled. The module provides differential termination and reduce differential to common mode conversion for quality signal termination and low EMI. SFI typically operates over 200 mm of improved FR4 material or up to about 150mmof standard FR4 with one connector.
The transmitter converts 25Gbit/s serial PECL or CML electrical data into serial optical data compliant with the 25GBASE-SR standard. An open collector compatible Transmit Disable (Tx_Dis) is provided. Logic “1” or no connection on this pin will disable the laser from transmitting. Logic “0” on this pin provides normal operation. The transmitter has an internal automatic power control loop (APC) to ensure constant optical power output across supply voltage and temperature variations. An open collector compatible Transmit Fault (Tx_Fault) is provided. TX_Fault is module output contact that when high, indicates that the module transmitter has detected a fault condition related to laser operation or safety. The TX_Fault output contact is an open drain/collector and shall be pulled up to the Vcc_Host in the host with a resistor in the range 4.7-10 kΩ. TX_Disable is a module input contact. When TX_Disable is asserted high or left open, the SFP28 module transmitter output shall be turned off. This contact shall be pulled up to VccT with a 4.7 kΩ to 10 kΩ resistor
The receiver converts 25Gbit/s serial optical data into serial PECL/CML electrical data. An open collector compatible Loss of Signal is provided. Rx_LOS when high indicates an optical signal level below that specified in the relevant standard. The Rx_LOS contact is an open drain/collector output and shall be pulled up to Vcc_Host in the host with a resistor in the range 4.7-10 kΩ, or with an active termination. Power supply filtering is recommended for both the transmitter and receiver. The Rx_LOS signal is intended as a preliminary indication to the system in which the SFP28 is installed that the received signal strength is below the specified range. Such an indication typically points to non-installed cables, broken cables, or a disabled, failing or a powered off transmitter at the far end of the cable.
Features:
- Up to 25Gb/s data links
- 850nm VCSEL laser and PIN receiver
- Up to 100m on 50/125um MMF
- Hot-pluggable SFP footprint
- Digital diagnostic capabilities
- Class 1 laser safety certified
- Cost effective SFP28 solution, enables higher port densities and greater bandwidth
- RoHS-10 compliant and lead-free
- Single +3.3V power supply
- 2-wire interface for management specifications compliant with SFF 8472 digital diagnostic monitoring interface for optical transceivers
- All-metal housing for superior EMI performance
- Case operating temperature
Commercial: 0 ~ +70oC
Extended: -10 ~ +80oC
Industrial: -40 ~ +85oC
Application:
- High-speed storage area networks
- Computer cluster cross-connect
- Custom high-speed data pipes
- Inter Rack Connection
|
Part Number |
Data Rate (Gb/s) |
Wavelength (nm) |
Transmission Distance(km) |
Temperature (oC) (Operating Case) |
|
RSFP28-8525G-SRD |
25.78 |
850 |
100m MMF |
0~70 commercial |
|
RSFP28-8525G-SRDE |
25.78 |
850 |
100m MMF |
-10~80 Extended |
|
RSFP28-8525G-ERDI |
25.78 |
850 |
100m MMF |
-40~85 Industrial |
Rollball is always at your services with our fiber optical products. As professional manufacturer with rich experience, we have more than 100 different models for your choices, you are sure to stand out with Rollball advantage: competitive price , product warranty and excellent quality. You may check the clients feedback from all over the world. We guarantee what we have showed is 100% genuine and what else you are waiting for?
- Quality system of ISO900,CE,FCC,ROHS registration
- Manufacture system
- R&D system
- Purchasing system
- Prompt delivery and remarkable services
- Reasonable prices
- Accept orders according to customer's demands
- Rich experience of OEM & ODM co-operation
- Shipment,payment and delivery
We sincerely invite all interested buyers to visit our company and contact us directly for further information, we will reply you within 12hours !
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