Fig. 2-3 The pin assignment of serial interface
Note: (1)“Source” denotes the source that signal come from;
(2)Logical signal level is EIA.
The baud rate and data structure in serial interface mode is 9600bps, 8-bit
data bits, no parity bit and 1 stop bit.
The serial interface of PR-250 can be connected to standard RS-232C
interface. When it is connected to IBM PC or its compatible machine,
connection can accord to Fig.2-4.
Fig.2-4 Connection between PR-250 and IBM PC Serial Interface Sketch Map
The pin assignment of DB9 interface is as below shows:
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