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Hardware Description of Coprocessor – WSI2 Board Description

48 Application ModuleX Service 12/01

Honeywell

Coprocessor SCSI

interface details

The coprocessor SCSI (hard disk drive) interface connection is made at

the coprocessor board free edge. From there it is routed:

• Through a cable to the Hard Disk Drive tray (HDDT) internal circuit

board,

• Through the internal HDDT circuit board to disk drive interface

cables and also through the backplane to the HDDT I/O board,

• Through the HDDT I/O board to a cable connector.

The SCSI interface connector on the HDDT I/O board has a terminator

assembly installed if no optional DAT drive or optional CD-ROM is

connected. If one or both of the optional devices is connected, the device

at the end of the cable must be pinned to provide the bus termination.

40029

Backplane

Connection

HDDT I/O

WSI2 I/O

Coprocessor

HDDT

WSI2

SCSI Terminator or

Optional SCSI Device

(DAT/CD-ROM)

Connection

HDDT Circuit

Board

Hard Disk Drive

Tray (Located

above WSI2

Board)

First Hard

Disk Drive

Second Hard

Disk Drive

(Optional)

SCSI Interface

Cable

Coprocessor

hardware

identification

number

Each coprocessor has a unique software visible hardware identification

number manufactured into the board. This hardware identification number is

tied directly to the user of the optional Honeywell Kinet software license.

Only users requiring DECnet communications support will have Kinet

software installed on the coprocessor system.

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