Scsi Connections; Scsi Cable - HP Model 745 - VME Workstation Owner's Manual

Connecting Cables

SCSI Connections

SCSI Connections
The built-in SE SCSI port is implemented using an NCR710 macrocell
inside the I/O ASIC chip. This 8-bit single-ended implementation is compat-
ible with the current HP products and supports 5 MB/sec data transfer rates.
The SCSI bus is terminated to 3.3 volts through 127 Ohms on the system
board.
Internal mass storage devices must have their terminators removed or dis-
abled. If an external disk drive is used, an active terminator must be used on
the last drive's uncabled connector.
A SCSI cable shipped with the system must be connected between the board
computer and the mass storage module, as shown in Figure 2-7.
SCSI Terminator

SCSI Cable

Figure 2-7 SCSI Cable
2-13