iv
COM-1PD(USB)H
If your problem cannot be resolved ......................................................................................................19
3. EXTERNAL CONNECTION 21
Interface connectors...............................................................................................................................21
Example Connections............................................................................................................................22
4. FUNCTIONS 23
Communication Function......................................................................................................................23
Serial Data Transmission ...............................................................................................................23
RS-422A/485 Control Lines ..........................................................................................................23
Setting the Baud Rate.....................................................................................................................23
Bus isolation ...................................................................................................................................23
Surge protection..............................................................................................................................23
5. ABOUT HARDWARE 25
LED display ...........................................................................................................................................25
Hardware specification..........................................................................................................................26
Physical dimension................................................................................................................................26
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