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IBM 21H9837MT 1Gb/s 1000Base-SW 850nm GBIC Transceiver Module
- Form Factor: GBIC (Gigabit Interface Converter)
- Data Rate: 1Gb/s
- Standard: 1000Base-SW
- Wavelength: 850nm
- Fiber Type: Multi-Mode Fiber (MMF)
- Connector Type: SC Duplex
- Designed for IBM networking equipment
- Hot-swappable module
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Product Overview
The IBM 21H9837MT is a 1 Gigabit Ethernet GBIC transceiver module. It operates at a wavelength of 850nm for short-wavelength applications over multi-mode fiber (MMF) and supports the 1000Base-SW standard.
Technical Information
| Product Type | GBIC Transceiver Module |
| Data Rate | 1Gb/s |
| Standard | 1000Base-SW |
| Wavelength | 850nm |
Additional Specifications
| Fiber Type | MMF |
| Connector | SC Duplex |
| Manufacturer | IBM |
| Part Number | 21H9837MT |
Product Description
This IBM 21H9837MT module is a Gigabit Interface Converter (GBIC) transceiver, an older but still relevant form factor for 1 Gigabit Ethernet connectivity. It is designed to interface with networking equipment that utilizes the GBIC slot, providing a means to connect to fiber optic networks. The module adheres to the 1000Base-SW standard, which specifies operation over multi-mode fiber. The transceiver operates at a wavelength of 850nm, commonly used with Vertical-Cavity Surface-Emitting Lasers (VCSELs) for short-wavelength, short-distance communication over multi-mode fiber. This makes it suitable for applications within data centers, server rooms, or local area networks where distances are typically limited. The specific distance capabilities depend on the type of multi-mode fiber used, but 850nm GBICs are generally rated for several hundred meters. The 21H9837MT features an SC duplex connector, a common type for fiber optic connections that provides a secure physical link. As a hot-swappable module, it can be installed or removed from compatible IBM networking devices without interrupting network operation, ensuring flexibility and ease of maintenance. This transceiver is a key component for extending network connectivity in environments utilizing IBM infrastructure.
