HP Visualize J5000 hp Visualize J5000, J7000 workstations owner's guide (a4476 - Page 201

Connectors and Terminator Any single-ended standard SCSI-2 device connecting to the system board must use a 50-pin high-density thumb screw connector on the end connecting to the system board, and a 50-pin low-density bail lock connector on the other end. If you attach a second SCSI-2 device, the cable must have low-density connectors on each end. Any fast, wide SCSI-3 device connecting to the system board must use a 68-pin high-density thumb screw connector on both ends. The last device connected to the SCSI bus must be terminated with a SCSI terminator. All of the devices listed ship without terminators. If you do not already have a SCSI terminator, you must order terminator K2291 (for 50-pin connectors) or C2905A (for 68-pin connectors) from Hewlett-Packard. SCSI Configuration Constraints You are limited to the number of same-type SCSI devices per system. Before adding another SCSI device, determine if the system can support the additional device. This workstation offers the following types of SCSI bus, each with its own configuration constraints: • single-ended standard SCSI-2 bus • fast-wide, SCSI-3 bus Single-Ended SCSI-2 Bus Configuration Constraints For the single-ended standard SCSI-2 bus, HP-UX supports only one of each type of removable disk drive and two of the same type tape devices per system. Table C-3 shows configuration constraints for each single-ended standard SCSI-2 device type. If the system has internal hard disk drives or a floppy disk drive, you must count them as SCSI-2 devices. C-7