User manual

49 TPC-1071H/1271H/1571H/1771H User Manu-
Appendix A Main Board Connector and Switch Settings
A.2 SW5 & SW6 Termination Resistor Selection
SW6 (for COM3) and SW5 (for optional COM6) are used to select the termination
resistor (120 ohm) for long distance transmission or device matching.
SW Setting
CN27
Serial port COM2:
RS-232
with isolation
D-Sub 9 pin male
CN28
Serial port COM1:
RS-232
with isolation
D-Sub 9 pin male
CN30 CF Compact flash socket
PCN1 DC IN DC Power in Connector
SW5
Termination
resistor switch
Select termination resistor for RS-422/485 of COM6
SW6
Termination
resistor switch
Select termination resistor for RS-422/485 of COM3