Specifications

EPC-5A Hardware & Software Reference Manual
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Serial Ports
The front panel contains two DB-9 DTE serial-port connectors. They are standard
RS-232 serial communication ports that are 16C450-compatible. Many current PC/AT
computers now incorporate 16C550 UARTs.
The EPC-5A serial ports may be used for connecting a mouse, modem, serial printer,
RS-232 link, etc.
Parallel Printer Port
The output-only parallel port on the front panel is a DB-25 connector that is
completely compatible with the corresponding LPT1 connector on IBM PCs and
compatibles. Typically it is used to connect printers and software security keys.