SR (Short Range):
The term “SR” indicates that the transceiver is designed for short-distance data transmission. SR transceivers typically use multimode fiber (MMF) and are optimized for shorter reach applications within data centers.
4 (in SR4)
The “4” in SR4 signifies that the transceiver uses four parallel lanes of data transmission. Each lane typically operates at 25G or 50G, depending on the specific transceiver, resulting in a total of 100G or 200G for SR4.
Key Characteristics of SR4:
- Fiber Type: Multimode fiber (MMF), typically OM3 or OM4.
- Reach: Typically supports up to 100 meters (OM3) or 150 meters (OM4) on multimode fiber.
- Applications: Ideal for short-range, high-bandwidth connections within a data center.