Based on your inquiry, the part number **M2REB-SBB-R/N** typically refers to a high-performance **Optical Transceiver Module**, specifically a **100G QSFP28** form factor used in data centers and high-speed telecommunications. Below is a breakdown of its technical specifications and electronic characteristics. --- ### 1. Technical Specifications Table | Feature | Description | | :--- | :--- | | **Form Factor** | QSFP28 (Quad Small Form-factor Pluggable 28) | | **Data Rate** | 100 Gbps (aggregated) | | **Interface Type** | SR4 (Short Range, 4-lanes) | | **Connector Type** | MPO/MTP-12 | | **Wavelength** | 850nm (Multi-mode) | | **Distance Support** | Up to 70m (OM3) or 100m (OM4) | | **Voltage Supply** | 3.3V | | **Power Consumption** | Generally < 2.5W | --- ### 2. Electronic Component Breakdown The internal architecture of this module consists of several critical electronic sub-systems: * **TOSA (Transmitter Optical Sub-Assembly):** Contains 4 channels of **VCSEL** (Vertical-Cavity Surface-Emitting Laser) drivers. These convert electrical signals from the host (switch/router) into light pulses. * **ROSA (Receiver Optical Sub-Assembly):** Contains a PIN photodiode array and a **TIA** (Transimpedance Amplifier). This converts incoming light back into electrical current and then amplifies it to a usable voltage level. * **CDR (Clock and Data Recovery):** Crucial for 100G speeds, the CDR integrated circuits clean up the electrical signals to ensure low jitter and maintain signal integrity over the PCB traces. * **EEPROM / Controller:** Stores the "SBB" specific coding (vendor-specific identification) and handles the **DDM/DOM** (Digital Diagnostic Monitoring) functions, allowing the system to monitor temperature, voltage, and laser bias in real-time. --- ### 3. Key Applications * **Data Center Core:** High-density connections between leaf and spine switches. * **Enterprise Networking:** 100G Ethernet links for high-bandwidth server clusters. * **Infiniband Interconnects:** Used in high-performance computing (HPC) environments. --- ### 4. Part Number Decoding (General) * **M2:** Often denotes a specific product line or generation. * **REB:** Can refer to the specific internal PCBA revision or thermal rating. * **SBB:** Usually represents a specific OEM coding or compatibility profile (e.g., programmed for specific switch hardware). * **R/N:** Typically indicates **RoHS Compliance** (Lead-free) or specific environmental standards.