
APPENDIX B: SPECIFICATIONS
General
∙Operates on Macintosh® and PC Computers
∙Automatic Termination
∙Advanced Data Streaming (ADS™) Technology
∙
∙Embedded RISC I/O Processor
∙
UL2D: EXT (2) 68 VHDCI
INT (2) 68 Wide
UL2S: EXT (1) 68 VHDCI
INT (1) 68 Wide
∙Flash ROM BIOS for Easy Field Upgrades
∙PCI 2.1 Compliant
∙Low Power Requirements
∙Plug and Play
∙Includes Mac® OS and PC Utility Software
| SCSI Bus | 
 | 
 | 
| Adapter Interface | Special Bus Management Hardware for | |
| 
 | Video, Fileservers, & Real Time | |
| 
 | Environments | |
| Maximum Host PCI Transfer Rate | 133 Mbytes/sec. | |
| Maximum SCSI Transfer Rates: | 
 | 
 | 
| Synchronous Data Rate: | 
 | 
 | 
| UL2D: | 80 | Mbytes/sec. Per Channel (Ultra2 mode) | 
| 
 | 40 | Mbytes/sec. Per Channel (Ultra mode) | 
| UL2S: | 80 | Mbytes/sec. Per Channel (Ultra2 mode) | 
| 
 | 40 | Mbytes/sec. Per Channel (Ultra mode) | 
| Asynchronous Data Rate: | 12 | Mbytes/sec. Per Channel (All models) | 
| SCSI Interface | ||
| 
 | Ultra2 SCSI | |
| Electrical Signals | ||
| 
 | Differential SCSI | |
| Extensive Device Support | UL2D: Up to 210 through LUNS | |
| 
 | 
 | (Wide and Narrow Devices) | 
| 
 | UL2S: Up to 105 | |
| Page 14 | ATTO Technology, Inc. | 
