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3. CONNECTIONS
RS-232 DB9F Shielding
The shield of the DB9 RS-232 connector also connects to chassis ground. Therefore this shield should not be
connected to any signal ground of any RS-232 signal or power signal. If for some reason the source or destination
devices have internal connections from signal ground to the shield then the shield should not be connected on RegCom-
Pro end to maintain signal ground and earth ground isolation. Proper shielding of RS-232 signals will extend the length of
wiring especially at high data rates and eliminate noise being coupled into the either a source or destination device by
surrounding EMI or RFI generated by other equipment within the installation.
3.3 CONNECTION DIAGRAM FOR REGCOM-PRO PROGRAMMING
The connection diagram between computer and RegCom-Pro for Programming or Configuration show in Figure 5:
Figure 5: Connection diagram of RegCom-Pro and Computer
RS-232
RegCom-Pro
RegCom-Pro POS / Cash Register Interface
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