Hach 1950Plus - Page 44

Page 44
Serial Data Connections
UVTOCUnpacking Installation Setup.fm
Section 2
Figure 22 RS232 Connection to Remote Device (PC)
Figure 23 RS422 Connection to Remote Device
Important Note: Install a jumper from JP1-2 to JP1-3 (lower two pins) on the I/O pcb
(130143) for RS422 and RS485 communications (Figure 11 on page 33, item 5).