Emulex MD21/S2, Technical Manual, Page: 6 / 88

TABLES (continued)
Table Title Page
7-1 SCSI Bus Signals................................ 7-7
7-2 Single-Ended Pin/Signal Assignments at SCSI
Bus Interface................................ 7-8
7-3 Disk Drive Cable Requirements....... 7-13
7-4 Control Cable Pin Assignments................... 7-16
7-5 Data Cable Pin Assignments...................... 7-17
7-6 Connector J4 Pin Description................... 7-19
7-7 Power Supply Connections ....................... 7-21
FIGURES
Figure Title Page
2-1 MD21 Disk Controller........................... 2-2
2-2 MD21 Controller Block Diagram.................. 2-4
2-3 Sample SCSI Bus Configuration................... 2-7
2- 4 Typical Multi-Drive Configuration.............. 2-8
3- 1 MD21 Controller Dimensions...................... 3-5
4- 1 Sector Format for Hard-Sectored Disk Drives.... 4-7
4- 2 Sector Format for Soft-Sectored Disk Drives..... 4-8
5- 1 MD21 Configuration Reference Sheet............. 5-2
5-2 Sector Size Switch Setting...................... 5-5
5-3 Drive Spin Up Switch Setting................... 5-6
5-4 Soft Error Reporting Switch Setting............. 5-6
5-5 Parity Enable Switch Setting................... 5-7
5-6 Installing the MD21 Controller on the
Mounting Bracket............................. 5-10
5- 7 Connecting the Disk Drive Data and Control
Cables and the SCSI bus to the MD21 Controller 5-10
6- 1 Location of LEDs on the MD21 Controller........ 6-6
7- 1 MD21 Controller Component Locations............ 7-3
7-2 SCSI Bus Signals Termination.................... 7-4
7-3 SCSI Bus Timing Diagram................. 7-10
7-4 ESDI Control Cable Pin/Signal Assignments....... 7-15
7-5 ESDI Data Pin/Signal Assignments................ 7-17
7-6 Sample User Panel............... 7-18
7-7 Write-Protect Input Signal..................... 7-19
7-8 Pin Locations for Power Connector ........ 7-20
vi Table of Contents