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IBM 21H9870 1Gb/s 1000Base-SW GBIC Optical Transceiver Module
- Form Factor: GBIC
- Data Rate: 1Gb/s
- Standard: 1000Base-SW
- Wavelength: 850nm
- Fiber Type: Multi-Mode Fiber (MMF)
- Connector Type: SC Duplex
- Application: Gigabit Ethernet
- Hot-swappable
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Product Overview
The IBM 21H9870 is a 1Gb/s GBIC optical transceiver module designed for 1000Base-SW applications. It operates at a wavelength of 850nm for short-reach communication over multi-mode fiber.
Technical Information
| Product Type | GBIC Transceiver Module |
| Interface | Gigabit Ethernet |
| Form Factor | GBIC |
| Standard | 1000Base-SW |
Additional Specifications
| Wavelength | 850 nm |
| Fiber Mode | Multi-Mode |
| Connector | SC |
Product Description
The IBM 21H9870 is a Gigabit Interface Converter (GBIC) optical transceiver module that supports the 1000Base-SW standard. This standard is often associated with specific vendor implementations for Gigabit Ethernet over multi-mode fiber, typically operating at 850nm. The GBIC form factor is an older but still functional interface for network connectivity. This transceiver is designed for short-distance communication links, commonly used within data centers or enterprise networks for connecting switches, routers, and servers. It utilizes multi-mode fiber optic cabling, which is generally less expensive and easier to install than single-mode fiber for shorter runs. The SC duplex connector provides a reliable physical connection for the fiber optic patch cords. As a hot-swappable device, the 21H9870 can be inserted or removed from a network device without requiring a system reboot, ensuring continuous network operation. This feature is essential for maintaining high availability and facilitating network maintenance or upgrades. The module's compatibility with the 1000Base-SW standard ensures it can integrate seamlessly into networks designed for this specific Gigabit Ethernet implementation.
