Configuring HP-UX For Peripherals

76 Chapter3
Configuring Interface Cards
Selecting Device Drivers for Your Interface Cards
Centronics (Parallel) Configuration Guidelines
The centronics (parallel) interface allows characters to transfer over
multiple data lines, one bit per line. This method of transfer results in
faster speed than serial transmission and is preferred for configuring
printers, plotters, and scanners.
On Series 700 workstations, the centronics (parallel) interface is
provided as a standard feature; Series 800 systems may have a parallel
interface on the multi-functional I/O card (personality card) supplied
standard with the computer or on an optional SCSI/Centronics interface
card. Centronics is not supported on Series 800 CIO systems.
EISA Configuration Guidelines
When configuring an interface card to the EISA bus, the eisa device
driver must be present in the kernel, that is, it must be listed in
/stand/system.
Because EISA is a set of services used by other interfaces, configuring
EISA cards is done differently than for other HP-UX interfaces. Refer to
Appendix A , “EISA Board Configuration,”/sbin/eisa_config utility.
Swapping to an EISA Device
If you are adding a device to your system that you plan to use as a
primary swap device, and the device will be connected to an EISA card,
a. F denotes female receptacle; M, male plug. 4 denotes USOC RJ-11C
connector (as on contemporary consumer telephones), 9 denotes 9-pin
DB-0 subminiature D-style connector, 25 denotes 25-pin DB-25
subminiature D-style connector, 50 denotes 50-pin amp "blue ribbon"
D-style connector.
Table 3-6 Centronics Configuration Requirements
Architecture Interface card Interface Driver
Series 700 Core I/O (internal)
CentIf
a
Series 800 HP-PB 28655A lpr0
a. Specifying CentIf causes ChrDrv to be included in the kernel.