ADLINK cPCI-3620 - Manual (Page 57)

Board Interfaces 45
cPCI-3620
COM3 Mode Selection Switches on RTM (SW5~SW8)
These switches on the RTM select COM3 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-R3610(T) RTM
Board Layout” on page 29 for switch locations.
Table 4-18: COM3 Mode Selection Switch Settings
Mode Pin SW5 SW6 SW7 SW8
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
SW5 SW6 SW7 SW8