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       # MICRODYNE CORPORATION
       
          EXOS 205-10T
       
          NIC Type               Ethernet                                
          Processor              Intel 80186                             
          Processor Speed        8MHz                                    
          Chip Set               Intel 82586                             
          Maximum Onboard Memory 512KB DRAM                              
          Data Bus               8/16-bit ISA                            
          Network Transfer Rate  10Mbps                                  
          Topology               Linear Bus/Star                         
          Wiring Type            Unshielded twisted pair                 
                                                                         
                                 AUI transceiver via DB-15 port          
          Boot ROM               Available (location unidentfied)        
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |      Function       | Label |       Function       | Label |
          |---------------------+-------+----------------------+-------|
          | AUI transceiver via |  CN1  | Unshielded twisted   |  CN2  |
          | DB-15 port          |       | pair connector       |       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                 Setting                 | Label | Position |
          |-----------------------------------------+-------+----------|
          | » | SQE heartbeat enabled               |  J2   |   Open   |
          |---+-------------------------------------+-------+----------|
          |   | SQE heartbeat disabled              |  J2   |  Closed  |
          |---+-------------------------------------+-------+----------|
          | » | Carrier detect enabled              |  J3   |   Open   |
          |---+-------------------------------------+-------+----------|
          |   | Carrier detect disabled             |  J3   |  Closed  |
          |---+-------------------------------------+-------+----------|
          | » | Auto-detect bus size                |  J33  |  Closed  |
          |---+-------------------------------------+-------+----------|
          |   | Force 8-bit bus size                |  J33  |   Open   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CABLE TYPE                         |
          |------------------------------------------------------------|
          |            Setting             |            S1             |
          |--------------------------------+---------------------------|
          |    Unshielded twisted pair     |            On             |
          |--------------------------------+---------------------------|
          | AUI transceiver via DB-15 port |            Off            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      BASE I/O ADDRESS                      |
          |------------------------------------------------------------|
          |       Setting       |        J24        |       J25        |
          |---------------------+-------------------+------------------|
          |   |      300h       |      Closed       |      Closed      |
          |---+-----------------+-------------------+------------------|
          | » |      310h       |       Open        |      Closed      |
          |---+-----------------+-------------------+------------------|
          |   |      320h       |      Closed       |       Open       |
          |---+-----------------+-------------------+------------------|
          |   |      330h       |       Open        |       Open       |
          +------------------------------------------------------------+
       
       +------------------------------------------------------------------+
       |                         BOOT ROM ADDRESS                         |
       |------------------------------------------------------------------|
       | Setting  | J16  | J17  | J18  | J19  | J20  | J21  | J22  | J23  |
       |----------+------+------+------+------+------+------+------+------|
       | | C0000h |Closed| Open | Open | Open | Open | Open | Open | Open |
       |-+--------+------+------+------+------+------+------+------+------|
       | | C4000h | Open |Closed| Open | Open | Open | Open | Open | Open |
       |-+--------+------+------+------+------+------+------+------+------|
       | | C8000h | Open | Open |Closed| Open | Open | Open | Open | Open |
       |-+--------+------+------+------+------+------+------+------+------|
       | | CC000h | Open | Open | Open |Closed| Open | Open | Open | Open |
       |-+--------+------+------+------+------+------+------+------+------|
       | | D0000h | Open | Open | Open | Open |Closed| Open | Open | Open |
       |-+--------+------+------+------+------+------+------+------+------|
       | | D4000h | Open | Open | Open | Open | Open |Closed| Open | Open |
       |-+--------+------+------+------+------+------+------+------+------|
       | | D8000h | Open | Open | Open | Open | Open | Open |Closed| Open |
       |-+--------+------+------+------+------+------+------+------+------|
       | | DC000h | Open | Open | Open | Open | Open | Open | Open |Closed|
       |-+--------+------+------+------+------+------+------+------+------|
       |»|Disabled| Open | Open | Open | Open | Open | Open | Open | Open |
       +------------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         INTERRUPT                          |
          |------------------------------------------------------------|
          | Setting |  J10   |  J11   |  J12   |  J13  |  J14  |  J15  |
          |---------+--------+--------+--------+-------+-------+-------|
          |»|       | Closed |  Open  |  Open  | Open  | Open  | Open  |
          |-+-------+--------+--------+--------+-------+-------+-------|
          | | IRQ3  |  Open  | Closed |  Open  | Open  | Open  | Open  |
          |-+-------+--------+--------+--------+-------+-------+-------|
          | | IRQ4  |  Open  |  Open  | Closed | Open  | Open  | Open  |
          |-+-------+--------+--------+--------+-------+-------+-------|
          | | IRQ5  |  Open  |  Open  |  Open  |Closed | Open  | Open  |
          |-+-------+--------+--------+--------+-------+-------+-------|
          | | IRQ6  |  Open  |  Open  |  Open  | Open  |Closed | Open  |
          |-+-------+--------+--------+--------+-------+-------+-------|
          | | IRQ7  |  Open  |  Open  |  Open  | Open  | Open  |Closed |
          |-+-------+--------+--------+--------+-------+-------+-------|
          | | IRQ10 |  Open  |  Open  |  Open  | Open  | Open  | Open  |
          |-+-------+--------+--------+--------+-------+-------+-------|
          | | IRQ11 |  Open  |  Open  |  Open  | Open  | Open  | Open  |
          |-+-------+--------+--------+--------+-------+-------+-------|
          | | IRQ12 |  Open  |  Open  |  Open  | Open  | Open  | Open  |
          |-+-------+--------+--------+--------+-------+-------+-------|
          | | IRQ13 |  Open  |  Open  |  Open  | Open  | Open  | Open  |
          |-+-------+--------+--------+--------+-------+-------+-------|
          | | IRQ14 |  Open  |  Open  |  Open  | Open  | Open  | Open  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     INTERRUPT (CON’T)                      |
          |------------------------------------------------------------|
          |  Setting   |   J34   |   J35   |   J36   |  J37   |  J38   |
          |------------+---------+---------+---------+--------+--------|
          | » |        |  Open   |  Open   |  Open   |  Open  |  Open  |
          |---+--------+---------+---------+---------+--------+--------|
          |   |  IRQ3  |  Open   |  Open   |  Open   |  Open  |  Open  |
          |---+--------+---------+---------+---------+--------+--------|
          |   |  IRQ4  |  Open   |  Open   |  Open   |  Open  |  Open  |
          |---+--------+---------+---------+---------+--------+--------|
          |   |  IRQ5  |  Open   |  Open   |  Open   |  Open  |  Open  |
          |---+--------+---------+---------+---------+--------+--------|
          |   |  IRQ6  |  Open   |  Open   |  Open   |  Open  |  Open  |
          |---+--------+---------+---------+---------+--------+--------|
          |   |  IRQ7  |  Open   |  Open   |  Open   |  Open  |  Open  |
          |---+--------+---------+---------+---------+--------+--------|
          |   | IRQ10  |  Open   |  Open   |  Open   |  Open  | Closed |
          |---+--------+---------+---------+---------+--------+--------|
          |   | IRQ11  |  Open   |  Open   |  Open   | Closed |  Open  |
          |---+--------+---------+---------+---------+--------+--------|
          |   | IRQ12  |  Open   |  Open   | Closed  |  Open  |  Open  |
          |---+--------+---------+---------+---------+--------+--------|
          |   | IRQ13  |  Open   | Closed  |  Open   |  Open  |  Open  |
          |---+--------+---------+---------+---------+--------+--------|
          |   | IRQ14  | Closed  |  Open   |  Open   |  Open  |  Open  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |      256KB       |    (2) 256K x 4    |        None        |
          |------------------+--------------------+--------------------|
          |      512KB       |    (2) 256K x 4    |    (2) 256K x 4    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        DRAM JUMPER                         |
          |------------------------------------------------------------|
          |            Size             |              J1              |
          |-----------------------------+------------------------------|
          |            256KB            |            Closed            |
          |-----------------------------+------------------------------|
          |            512KB            |             Open             |
          +------------------------------------------------------------+