IBASE MRS-801-RE - Manual (Page 20)

12 MRS-801-RE User Manual
JP5, SW4 (S2): RS-232/422/485 Mode Selection 2.0mm
COM1 Mode SW4 (S2) JP5
RS-232 Off (Default) 2-3 Short (Default)
RS-485 On 2-3 Short
RS-422 Off 1-2 Short
SW4 (S1): RS-422/485 Device Termination Selection
SW4 (S1) Device Mode
On None Terminal (Default)
Off Terminal
s2 s1
1 3
S2 S1