USB to RS-232/422/485 Converters
ICP DAS CO., LTD.
User Manual/ Ver. 1.0/ Dec. 2013/ Page: 16
2.3
JP3: Output Type Selection (I-7561U Only)
The I-7561U module supports four different output types:
Type 1:
1-channel RS-485 output
Type 2:
1-channel RS-422 output
Type 3:
2-channel RS-485 output (This type supports star wiring network)
Type 4:
1-channel RS-232 output
The JP3 jumper is used to select the different output types. To select the
Type 1 (1-channel RS-485)
and Type 2 (1-channel RS-422)
, pins2 and 3 must be shorted (factory default settings). To select the
Type 3 (2-channel RS-485)
, pins1 and 2 must be shorted. To adjust the output type follows the
procedure illustrated below:
Note: that the RS-232, RS-422 and RS-485 output types cannot be used
simultaneously, meaning that only one output type can be selected at any one time.
Step 1: Removing both screws from the casing.
Step 2: Remove the top half of the shell casing.
