IBASE IPPC15B7-RE - Manual (Page 25)

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2.3 Setting Jumpers
Jumpers are used on IB806 to select various settings and features according to
your needs and applications. Contact your supplier if you have doubts about the best
configuration for your needs. The following lists the connectors on IB806 and their
respective functions.
Jumper Locations on IB806
JP7, JP3: COM1, COM2 RS232 RI/+5V/+12V Power Setting
JP7, JP3 Setting Function
Pin 1-2
Short/Closed
+12V
Pin 3-4
Short/Closed
RI
Pin 5-6
Short/Closed
+5V
Note: The suggested setting is RI, with maximum current lower than 1A.