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HP 25525-69002 EISA Fast Differential SCSI 2 Host Bus Adapter
- EISA bus interface
- Fast Differential SCSI 2 support
- Connects to SCSI devices
- Designed for older EISA systems
- Differential signaling for improved signal integrity
- Supports up to 15 SCSI devices
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Product Overview
The HP 25525-69002 is an EISA Fast Differential SCSI 2 Host Bus Adapter. This adapter provides connectivity for SCSI devices to older EISA bus systems. It supports Fast Differential SCSI 2 signaling for enhanced data integrity and speed over longer cable lengths compared to single-ended SCSI.
Technical Information
| Product Type | Host Bus Adapter (HBA) |
| Bus Interface | EISA |
| SCSI Standard | Fast Differential SCSI 2 |
Additional Specifications
| Connectors | Internal/External SCSI (typically DB-50 or similar) |
| Device Support | Up to 15 SCSI devices |
Product Description
The HP 25525-69002 is a Host Bus Adapter (HBA) designed for older computer systems that utilize the EISA (Extended Industry Standard Architecture) bus. This adapter specifically implements the Fast Differential SCSI 2 standard, which offers significant advantages over earlier SCSI versions, particularly in terms of signal integrity and cable length. Differential signaling uses two wires for each signal, allowing the receiver to detect noise and cancel it out, thus providing a more robust connection. This HBA enables the connection of various SCSI peripheral devices, such as hard drives, tape drives, and CD-ROM drives, to an EISA-based computer. The 'Fast' aspect of the standard indicates a data transfer rate of up to 10MB/s, while 'SCSI 2' signifies support for a wider range of commands and features. The 'Differential' aspect is key for reliable operation, especially in environments with potential electrical interference or when longer cable runs are necessary. Given the EISA interface, this adapter is intended for legacy systems and is not compatible with modern PCI or PCIe-based computers. It represents a solution for maintaining or expanding storage capabilities on older workstations or servers that rely on the EISA bus architecture. The ability to connect up to 15 SCSI devices provides a considerable degree of expandability for such systems.
