Seagate ST32430N Specifications download pdf (Page 24)

Hardware Description of LCN Node Processors – K4LCN-X Node Processor

22 Application ModuleX Service 12/01

Honeywell

3.2 K4LCN-X Node Processor

Overview

The K4LCN processor board contains all of the essential parts to make

up the kernel portion of any LCN node. It includes a 68040 processor,

LCN interface circuits, and 8 or 16 megawords of on-board memory (for

the A

M). It has floating point calculation hardware capability. The exact

memory size is determined by which memory option is purchased. A

minimum of 6 megawords is required to support the A

M with R500

software.

Changing memory size requires the replacement of the existing memory

daughter board or mezzanine board with a board that contains the proper

memory complement. The memory board can be upgraded in the field.

The K4LCN board memory size is easily recognized by the -X portion of

the name on the left extraction lever. (K4LCN-8 = 8 megawords,

K4LCN-16 = 16 megawords).

The following board assembly layout illstrations show a top view of the

early production K4LCN board, assembly 51401946-100, and the latest

production K4LCN board, assembly 51402755-100.

52521

ASSY.

Memory Board

LCN Address Pinning

51401946-100

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 153 154

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Seagate ST32430N Specifications Page 24