User Manual

OPM-CDV
12 OPM-CDV Quick Reference Guide
2.4.5 COM1 Dsub_ 9 signal selector (JRI1)
* Default
Ring*
+5V
+12V
Signal
PIN
PIN
Signal
PS2
6
5
+12V
PS2
4
3
+5V
NRIA#
2
1
JNRIA#
Note: When switched to “Ring”, the signal only works in RS-232 mode.