ALPHA MICROSYSTEMS
==================

   AM-338, AM-339 RJE BOARD SET

   Processor        Z-80                                          
   Processor Speed  4MHz                                          
   Chip Set         Unidentified                                  
   Video Chip Set   None                                          
   Maximum Onboard  None                                          
   Memory           
   Maximum Video    None                                          
   Memory           
   Cache            None                                          
   BIOS             Unidentified                                  
   Dimensions       Unidentified                                  
   I/O Options      Debug/trace port, synchronous communication   
                    port                                          
   NPU Options      None                                          

<gopher://bitreich.org/I/th99/m/A-B/34224-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose               | Location | Purpose      | Location |
   |-----------------------+----------+--------------+----------|
   | Debug/trace port      |   CN1    | AM-338 board |    J1    |
   |                       |          | connector    |          |
   |-----------------------+----------+--------------+----------|
   | Synchronous           |   CN2    |              |          |
   | communication port    |          |              |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   DTE/DCE CONFIGURATION                    |
   |------------------------------------------------------------|
   |     Setting     |                    W1                    |
   |-----------------+------------------------------------------|
   |       DTE       |  1 & 2, 5 & 6, 9 & 10 13 & 14, 18 & 19,  |
   |                 |        21 & 22, 23 & 24, 25 & 26         |
   |-----------------+------------------------------------------|
   |       DCE       | 3 & 4, 7 & 8, 11 & 12, 15 & 16, 19 & 20, |
   |                 |        21 & 22, 23 & 24, 25 & 26         |
   |-----------------+------------------------------------------|
   | DCE (test mode) | 3 & 4, 7 & 8, 11 & 12, 15 & 16, 19 & 20, |
   |                 |        21 & 22, 23 & 25, 27 & 28         |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/m/A-B/34224-2.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose                       |          Location          |
   |-------------------------------+----------------------------|
   | AM-339 board connector        |             J1             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function                | Label |  Position  |
   |---------------------------------------+-------+------------|
   |>> | Factory configured - do not alter |  W1   | Pins 5 & 6 |
   |   |                                   |       |   closed   |
   |---+-----------------------------------+-------+------------|
   |>> | Factory configured - do not alter |  W2   |   Closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                MISCELLANEOUS TECHNICAL NOTE                |
   |------------------------------------------------------------|
   | These boards provide a bisync interface for the Alpha      |
   | Micro AM-1600 (Desktop and Deskside) allowing an interface |
   | between IBM mainframes when used with AlphaRJE software.   |
   +------------------------------------------------------------+