User`s manual

COMHP 7404/-D25 CyberResearch
®
Serial Communications
vi ©Copyright 2010 CyberResearch, Inc.
TABLE OF FIGURES
Figure 1- Switches SW1- SW4, RS-422.................................................................................................................................. 3
Figure 2 - Switches SW1- SW4, RS-485 ‘Auto’ Enabled, with ‘No Echo’ and the termination resistor in circuit......... 3
Figure 3 - Switches SW1- SW4, RS-485 ‘Auto’ Enabled, with ‘Echo’ and no termination resistor in circuit................3
Figure 4 - Switches SW1- SW4, RS-485 ‘RTS’ Enabled, with ‘No Echo’ and no termination resistor in circuit. ......... 4
Figure 5 - Switches SW1- SW4, RS-485 ‘RTS’ Enabled, with ‘Echo’ and no termination resistor in circuit. ............... 4
Figure 6 - Asynchronous Communications Bit Diagram...................................................................................................14