ADLINK cPCI-3620 - Manual (Page 47)

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