ADLINK CT-31 - Manual (Page 39)

Board Interfaces 27
CT-31
4.7 cPCI-R3610T RTM Switch Settings
COM2 Mode Selection Switches on RTM (SW1~SW4)
These switches on the RTM set COM2 to 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 Lay-
out” on page 22 for switch locations.
Table 4-14: 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