Board Interfaces
35
cPCI-3620
cPCI-3620D COM1 Mode Selection Switches (SW1~SW4)
These switches set the cPCI-3620D COM1 to RS-232 full
modem, RS-422, RS-485, or RS-485+ half-duplex mode.
Switches SW1~SW4 are located on the top edge of the
DB-3610L2 board. RS-232 full modem is set by default.
Table 4-9: cPCI-3620D COM1 Mode Selection Switch Settings
Mode
Pin
SW1
SW2
SW3
SW4
RS-232
1
ON
ON
ON
OFF
2
OFF
OFF
OFF
OFF
3
OFF
ON
ON
OFF
4
OFF
OFF
OFF
OFF
RS-422
1
OFF
OFF
OFF
ON
2
ON
ON
ON
OFF
3
OFF
OFF
OFF
ON
4
OFF
ON
ON
OFF
RS-485
1
OFF
OFF
OFF
ON
2
OFF
ON
ON
OFF
3
ON
OFF
OFF
ON
4
OFF
ON
ON
OFF
RS-485+
1
OFF
OFF
OFF
OFF
2
OFF
ON
ON
ON
3
ON
OFF
OFF
OFF
4
OFF
ON
ON
ON
SW1
SW2
SW3
SW4
Содержание cPCI-3620 Series
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