DigiBoard recommends the DigiCHANNEL EPC/X System as part of your
system solution.

DESIGN SPECS:

The DigiCHANNEL enhanced performance concentrator, or EPC/X, is
designed as the next generation of the proven DigiCHANNEL C/X
System, with added performance and expandability.  A host adapter
card resides in the host PC and up to fourteen concentrator
boxes, each supporting 16 users, can be located up to 1000 feet
(305 meters) from the system using standard RS 422 synchronous
lines or 6,500 feet (2 kilometers) using fiber optic lines. 
Bidirectional communication on 96 concurrent users is supported
at 115 KBaud.


ENGINEERING SPECS:

EPC HOST ADAPTER
*    ISA bus

*    16 MHz IDT 3051 RISC processor 

*    115KB performance on systems of up to 96 users

*    256K dual ported RAM (expandable to 1M)

*    Dual ported memory can be mapped into 32K windows

*    256K of local DMA memory 

*    Two RS422 synchronous serial channels

*    Up to 10Megabits/sec bidirectional on each serial channel

*    RS422 and RS232 synchronous modem support

*    Surge protection on all RS-232 and RS-422 signals

EPC Concentrator box

*    16 - 16C550 asynchronous serial ports capable of 115Kbaud

*    16MHz IDT 3051 RISC processor 

*    512K of RAM (expandable to 1Mbyte)

*    64K of EPROM (expandable to 256K)

*    Supports fault tolerance on folded ring daisy chain
     connections (if one concentrator on a line fails, the
     remaining concentrators continue to operate)

*    DB25 or RJ45 connector options

*    Can be located up to 1,000 feet (305 meters) from the host
     using standard RS422 synchronous lines

*    Can be located up to 6,500 feet (2 kilometers) from the host
     using fiber optic lines

*    Up to fourteen concentrator boxes can be connected to one
     slot

*    Diagnostic display for easy system administration


OPERATING SYSTEM SUPPORT:

     The DigiCHANNEL EPC/X System will initially support SCO UNIX
     with additional support for SCO XENIX, UNIX SYS V/386 Rel
     3.2 and UNIX SYS V Rel. 4.0 to follow.

     Call DigiBoard at 800-344-4273 or 612-943-9020 for current
     availablity.



CONFIGURATION:

     The DigiCHANNEL EPC/X System includes the host adapter board
     and one EPC concentrator box for up to 16 users.  Additional
     concentrator boxes can be ordered for a maximum of fourteen
     concentrator boxes connected to a single host adapter.  A
     maximum of four host adapters can be installed per system
     for up to 896 users. 


RETAIL PRICE AND PART NUMBERS:

                                   PART           RETAIL
     PRODUCT                       NUMBER         PRICE  
     
     DigiCHANNEL EPC/X System      70000640       $2895
     
     Additional EPC/CON-16 
     concentrator boxes            760000640      $1795

     


DISTRIBUTORS:  For the name of a DigiBoard distributor near you,
               please call (800) 344-4273 or (612) 943-9020.