The K4LCN-16 (51403519-160) is the latest version of the LCN processor board using the Motorola 68040 processor, with 16 MW of non-expandable memory. This board, like the K2LCN preceding it, includes the LCN interface on the board.

All new K4LCN boards currently sold by Honeywell have 16 MW of non-expandable memory on the board. For many LCN node applications, much of this memory is not used. For example, the NIM does not use more than 4 MW of memory, and the Universal Station does not use more than 8 MW.

The K4LCN series of processor card is also capable of generating and receiving digital clock synchronization data frames transmitted at the LCN standard 5 MHz rate.

Processor Compatibility:

The minimum memory capacity for the node processor is three megawords to support R500 software. A K4LCN (68040) node processor is highly recommended if your UCN is currently heavily loaded or if a High Performance Process Manager device is connected to your UCN. The K4LCN-4 node processor can be used in any node with one exception, a Universal Station running engineer personality requires 8M. Honeywell no longer sells K4LCN-4 or K4LCN-8 processors.