Adaptec 1520B User Guide - Page 4

Step 8: Plug the remaining connectors on the cable into any remaining internal devices (these devices must not be terminated, see Step 4). Pin 1 Colored Stripe s In Steps 11 and 12, you will be attaching one of your external devices to the end of the daisy-chain. Right now, install (or enable) terminators on that device. Also, remove (or disable) terminators on all devices that you plan to attach in the middle. On most external SCSI devices, termination is controlled by installing or removing a terminating plug (see Step 11). Refer to the device's documentation to determine how to enable or disable termination on your particular device. 2nd Internal SCSI Device To 1st Internal SCSI Device To Host Adapter Step 9: Connect an available DC power cable (from your computer's power supply) to the power input connector on the SCSI device. Power Input Connector on the Back of the Drive DC Power Cable (from the Power Supply) Step 10: Prepare each external SCSI device for installation: (If you are not installing external SCSI devices, skip to Step 13.) s Make sure all SCSI devices (external and internal) are assigned a unique SCSI ID from 0 to 6. Refer to the device's documentation for instructions on setting the SCSI ID. If you plan to boot your computer from a SCSI hard disk drive, assign SCSI ID 0 to this drive. If you have a second hard disk drive, assign SCSI ID 1 to the drive. Termination Enabled Termination Disabled Termination Disabled Step 11: Plug one end of the external SCSI cable into the host adapter's external SCSI connector and plug the other end of the cable into either one of the SCSI connectors on the external SCSI device. (If you are installing only one external device, attach a terminating plug to the device.) 3 Terminating Plug 4 AHA-1520B Installation Guide Part Number: 511162-00, Rev. A Page 4 of 16 Print Spec Number: 495339-00 Current Date: 5/30/96 Last Modified: May 30, 1996 3:43 pm File Location: n:\mario\1520b_ig.nec\1520b_ig.frm ECN Date: 6/11/95 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA