Board Interfaces
43
cPCI-3615
COM2 Mode Selection Switches on RTM (SW1~SW4)
These switches on the RTM select COM2 to be RS-232 full
modem, RS-422, RS-485, or RS-485+ half-duplex mode.
RS-232 full modem is set by default. See “cPCI-R3610T RTM
Board Layout” on page 25 for switch locations.
Table 4-21: COM2 Mode Selection Switch Settings
Mode
Pin
SW1
SW2
SW3
SW4
RS-232
1
OFF
ON
ON
ON
2
OFF
OFF
OFF
OFF
3
OFF
ON
ON
OFF
4
OFF
OFF
OFF
OFF
RS-422
1
ON
OFF
OFF
OFF
2
OFF
ON
ON
ON
3
ON
OFF
OFF
OFF
4
OFF
ON
ON
OFF
RS-485
1
ON
OFF
OFF
OFF
2
OFF
ON
ON
OFF
3
ON
OFF
OFF
ON
4
OFF
ON
ON
OFF
RS-485+
1
OFF
OFF
OFF
OFF
2
ON
ON
ON
OFF
3
OFF
OFF
OFF
ON
4
ON
ON
ON
OFF
SW1
SW2
SW3
SW4
Содержание cPCI-3615 Series
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