B&B Electronics 3PCIOU1 Specifiche Pagina 5

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Document Number 3PCI-4310m Table of Contents iii
Uninstalling the MIport Card ..............................................................................25
Uninstalling the COM ports.................................................................................25
Removing INF and PNF Driver Files..................................................................25
CHAPTER 7: RS-232 CONNECTIONS/OPERATION.........................................28
RS-232 MODE ..........................................................................................................28
RS-232 SIGNAL DESIGNATIONS AND DB-9 PINOUT .................................................28
RS-232 Signal Designations.................................................................................29
DTE AND DCE .........................................................................................................29
RS-232 SIGNAL LEVELS ...........................................................................................29
HANDSHAKING .........................................................................................................30
RTS CONTROL IN RS-232 MODE .............................................................................30
CHAPTER 8: RS-422/485 CONNECTIONS/OPERATION .................................31
RS-422/485 MODE ...................................................................................................31
RS-422/485 SIGNAL DESIGNATIONS AND DB-9 PINOUT ..........................................31
RS-422/485 Signal Designations .........................................................................31
RS-422/485 DIFFERENTIAL SIGNALS........................................................................32
RS-422 OPERATION..................................................................................................32
RS-422 Limitations...............................................................................................33
RS-485 OPERATION..................................................................................................33
Send Data Control ...............................................................................................33
RS-485 TERMINATION RESISTORS............................................................................34
RS-485 NETWORK BIASING......................................................................................34
2-WIRE RS-485 CONNECTIONS ................................................................................36
2-Wire RS-485 Mode: ..........................................................................................36
4-WIRE RS-422 AND RS-485 CONNECTIONS............................................................37
RS-422 Point to Point Connection.......................................................................37
RS-422 Point to Multipoint Connection...............................................................37
4-Wire RS-485 Connection ..................................................................................38
CHAPTER 9: TROUBLESHOOTING MIPORT CARDS......................................1
STARTING UP..............................................................................................................1
CHECKING CONNECTIONS...........................................................................................1
RS-232/422/485 Operation ....................................................................................1
RS-232 Operation ..................................................................................................1
RS-422/485 Operation ...........................................................................................1
CHECKING THE MIPORT CARD ...................................................................................2
APPENDIX A: DIP SWITCH/MODE SETTINGS..................................................4
SETTING THE DIP SWITCHES ON RS-232/422/485 PORTS...........................................4
DIP Switch 1 (RS-232/422/485 ports)....................................................................4
DIP Switch 2 (RS-232/422/485 ports)....................................................................4
DIP Switch 3 (RS-232/422/485 ports)....................................................................5
SETTING THE DIP SWITCHES ON RS-422/485 ONLY PORTS........................................5
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