SM10G-SR Chelsio Compatible 10GBASE-SR SFP+ Transceiver
Chelsio compatible SM10G-SR - Key Features
- Compatibility: Chelsio
- Media Type: Multi-Mode Fiber (MMF) -OM3/OM4/OM5
- Fiber Count: Duplex
- Connector: Double LC/UPC
- Maximum Distance: 400 m
- Guaranteed Link Budget: 6.1 dB
- Tx Wavelength: 850 nm
- Supported Data Rate: 1.25 Gbps - 11.32 Gbps
- DDM/DOM: Supported
- Temperature Range: Standard 0°-70°C
Chelsio SM10G-SR Price
SKU:10G-SFP-300-MS
In Stock - Ships Next Business DayChelsio compatible SM10G-SR Specifications
Form Factor | SFP+ |
Media Type | Multi-Mode Fiber (MMF) -OM3/OM4/OM5 |
Fiber Count | Duplex |
Connector | Double LC/UPC |
Maximum Distance | 400 m |
Guaranteed Link Budget | 6.1 dB |
TX Wavelength | 850 nm |
RX Wavelength | 850 nm |
Supported Data Rate | 1.25 Gbps - 11.32 Gbps |
Supported Ethernet Applications | 10G Ethernet (10.31Gbps), Gigabit Ethernet (1.25 Gbps) |
Supported Fiber Channel Applications | 10G Fiber Channel (10.52 Gbps), 1G Fiber Channel (1.0625 Gbps), 2G Fiber Channel (2.125 Gbps), 4G Fiber Channel (4.25 Gbps), 8G Fiber Channel (8.5 Gbps) |
SDH/SONET Standards | STM-64 (9.95Gbps) |
DDM/DOM | Supported |
Tx Wavelength Bandwidth | 20 nm (840-860 nm) |
Rx Wavelength Bandwidth | 20 nm (840-860 nm) |
Minimum Transmitting Power | -5 dBm |
Maximum Transmitting Power | 0 dBm |
Receiver Sensitivity | -11.1 dBm |
Receiver Overload | 0 dBm |
Dispersion | 110 ps/nm |
Transmitter Type | VSCEL Laser |
Receiver Type | PIN photodiode |
Temperature Range | Standard 0°-70°C |
Power | +3.3V single power supply |
Compliance | CE,Class 1 FDA and IEC60825-1 Laser Safety Compliant,RoHS,SFF-8431,SFP MSA |
Chelsio compatible SM10G-SR Datasheet
v3Complete technical specifications and product details
Chelsio compatible SM10G-SR Description
SM10G-SR is a Chelsio-coded 10GBASE-SR SFP+ transceiver for Chelsio Unified Wire adapters in the Terminator 5 and Terminator 6 generations: T520-CR, T520-LL-CR, T520-SO-CR, T540-CR, T580-CR and T520-BT. The EdgeOptic compatible is programmed with the Chelsio-recognized vendor ID block, so the adapter firmware accepts the optic under the default Unified Wire configuration and the host sees the module in cxgb4 driver logs with the expected Chelsio attribution. Chelsio Unified Wire silicon is used in HPC and storage-server builds that rely on the adapter's iSCSI, iWARP RDMA, NVMe-oF and FCoE offload stack. On the dual-personality T520-BT, SM10G-SR seats in the SFP+ cage, which operates independently of the adapter's 10GBASE-T copper port.
Protocol is IEEE 802.3ae Clause 52 10GBASE-SR at 10.3125 Gbps. Optical build uses an 850 nm VCSEL transmitter, 850 nm PIN photodiode receiver, 6.1 dB minimum link budget, duplex LC connector and SFP+ MSA (SFF-8432) mechanical envelope. Reach is 300 m over OM3 and 400 m over OM4 with fully characterized multimode fiber, with 82 m over OM2 and 33 m over OM1 for legacy plant. SFF-8472 DDM/DOM exposes Tx power, Rx power, laser bias, temperature and supply voltage to the host, readable from the Chelsio t4_tools utility and from ethtool -m on Linux cxgb4 interfaces. Commercial operating range is 0 to 70 degrees Celsius.
Typical deployment is storage-server offload workloads: iSCSI initiator and target hosts running Chelsio's TOE stack, iWARP-based RDMA clusters for HPC and database replication, and NVMe-oF and FCoE nodes that use Chelsio's line-rate offload path to reduce host CPU load. The SM10G-SR optic lands in the SFP+ cages on T520-CR and T540-CR dual-port adapters, and also in the 10G cages on T580-CR quad-port and T520-BT combined copper/fiber adapters. On the switch side, the attached top-of-rack still runs its own vendor-ID check, so the switch port uses a separately coded SR SFP+ that matches the switch vendor's EEPROM allow list. For Chelsio HBA validation on specific Unified Wire firmware revisions, iWARP or NVMe-oF co-validation with a particular fabric switch, or HPC cluster sizing for T580-CR refresh, please contact our sales team with the host adapter inventory list.
Frequently Asked Questions
Which Chelsio adapters accept SM10G-SR?
SM10G-SR is coded for Chelsio Terminator 5 and Terminator 6 Unified Wire adapters: T520-CR, T520-LL-CR, T520-SO-CR, T540-CR, T580-CR and T520-BT. The cxgb4 driver logs the module with the expected Chelsio attribution under stock firmware.
Does SM10G-SR support Chelsio iSCSI, iWARP and NVMe-oF offload?
The optic is a 10GBASE-SR physical-layer module. Offload features (iSCSI TOE, iWARP RDMA, NVMe-oF, FCoE) are implemented in the Chelsio Unified Wire silicon and driver stack, not in the SFP+, so any 10GBASE-SR optic that the adapter accepts can carry offloaded traffic at the full 10 Gbps line rate.
Can DDM readings for SM10G-SR be pulled into Chelsio management tools?
Yes. SFF-8472 DDM is accessible to the Chelsio t4_tools utility through the adapter's I2C path, and Linux hosts can also read the module with ethtool -m on a cxgb4-managed interface.