51403519-160 TDC 3000 Memory Processor K4LCN-16 Honeywell new in box

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51403519-160 TDC 3000 Memory Processor K4LCN-16 Honeywell new in box

Lead time:3-5 days

New with one year warranty

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 AXM). 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 AXM 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.

K4LCN Pinning The K4LCN board has an LCN node number pinning feature on the board itself. This feature is duplicated on the CLCN A/B I/O or LCN I/O board that is installed directly behind the K4LCN board in the AXM Five-Slot Module chassis.

ATTENTION The address pinning jumpers must all be removed from the K4LCN board when it is used in conjunction with a CLCN A/B I/O (or LCN I/O) board. The node number pinning must be done on the CLCN A/B I/O (or LCN I/O) board in this case.

Memory for the K4LCN board is provided by a vertically pluggable daughter board on the early production K4LCN board, assembly 51401946-100, and a horizontally pluggable DIMM (Dual Iline Memory Module) style mezzanine board on the latest production K4LCN board, assembly 51402755-100. The memory daughter board is also sometimes referred to as a mezzanine board. The memory boards are available in three memory sizes, 4, 8, and 16 megawords. When a replacement K4LCN board is ordered from Honeywell logistics, it is provided without a memory board. The appropriate size memory board should also be ordered separately to prevent the possibility of moving a defective memory board from the failed K4LCN board to the replacement board.