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LAN Network Controller (LANS 100)
In 1982 IMS came out with an interesting LAN card that allowed network communication with other S-100 computers or via another board they supplied with IMB PC's. It was called the LANS 100 card.  The board unfortunately utilized a Token passing network protocol rather than the Ethernet protocol.  The board was meant to work with their new SBC 4800 S-100 card but presumably could be used in other S-100 systems since it was IEEE-696 compatible.
If anybody has a picture of this interesting board please let me know.

LAN Board

The IO ports were configurable anywhere in the range 0-FFH. Coax cable transmission was up to 2.5 Mbps. There was an onboard RAM buffer of 2K. Synchronization via XRDY or PRDY S-100 lines gave a data rate of 190K/sec or with DMA a rate of 571k/sec could be obtained. 
The manual for this board can be obtained here
The manual for the corresponding IBM-PC board can be obtained here


Other IMS S-100 Boards
16K RAM   32K RAM    64K DRAM    80186 CPU    FDC 400    FDC 930    HDC    IO Board    Z80 CPU  
8K RAM   4 Line Serial     CPZ 4800   LANS100    CPS-Q6A   CPS-MX   CPX-BMX   QIC Tape Controller  Other Boards


This page was last modified on 12/08/2013