Chelsio SM25G-SR Compatible 25GBASE-SR SFP28 850nm 100m MMF LC DOM Optical Transceiver Module
Chelsio SM25G-SR compatible optical transceiver is a dual fiber 25.8Gbps Small Form-factor Pluggable SFP28 module for use in 25GBASE Ethernet. SFP28 SR provides 25Gb/s throughput up to 100 meters over OM4 or 70 meters over OM3 multi-mode fiber (MMF) with host FEC using 850nm wavelength. This transceiver is fully compliant with SFP28 Multi-Source Agreement (MSA), IEEE 802.3by 25GBASE-SR and 25GAUI standard. Its electrical interface is MSA compliant 20-pin edge type connector and the optical interface is Duplex LC connector. The full-duplex SFP28 transceiver features highly reliable VCSEL transmitter and PIN photo detector to offer high performance interconnection at 25 Gbps data rate. Built-in Digital Diagnostic Monitoring (DDM) support is present for real-time performance monitoring via 2-wire Interface (TWI/I2C). Our modules are factory pre-programmed for compatibility, perform identically to original Chelsio SM25G-SR transceivers.
Feature
- Equivalent to Chelsio SM25G-SR in function
- Hot pluggable SFP28 form factor
- Data rate up to 25.8Gbps
- 850nm VCSEL transmitter
- PIN photo receiver
- Duplex LC optical connector
- Link distances up to OM4 100m, OM3 70m with host FEC
- Internal CDR on both Transmitter and Receiver channels
- Built-in digital diagnostic via 2-wire interface
- Single 3.3V power supply voltage
- Power consumption < 1W
- Ambient temperature range 0 to 70°C for commercial application
- Compliant with SFF-8402, SFF-8432, SFF-8419, SFF-8472
- Compliant with IEEE 802.3by 25GBASE-SR
- Compliant with RoHS, REACH, CE, FCC standards
Application
- 25G Ethernet
- eCPRI Wireless Networks
- Data Center
- Enterprise
- Campus
Specification
Chelsio Compatible P/N | SM25G-SR | Form Factor | SFP28 |
Max Data Rate | 25.8Gbps | Max Distance | 100m (328ft) @OM4, 70m (230ft) @OM3 |
Wavelength | 850nm | Connector | Duplex LC |
DDM/DOM | Support | Media | MMF |
Transmitter Type | VCSEL | Receiver Type | PIN |
Transmitter Power | -5 to 2.4dBm | Receiver Sensitivity | < -10.3dBm |
Extinction Ratio | 2dB | Receiver Overload | 2.4dBm |
Transmit and Dispersion Penalty | 3dB | Power Budget | 5.3dB |
OE Packaging | Coaxial Packaging | Signal Conditioner | Retimer for TX and RX |
Modulation Format | NRZ | Host FEC | Support |
Power Consumption | 1W | Commercial Temperature Range | 0 to 70°C (32 to 158°F) |