Hach 1950Plus Instrument Manual page 43

Uv process toc analyzer
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Figure 21 Installation Location for the Communication Kit Components on the I/O Assembly PCB
1.
6-pin Connector for J3
Network Line Number
Line 1
Line 2
Line 3
Line 4
Line 5
Line 6
1
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).
UVTOCUnpacking Installation Setup.fm
2.
10-pin Connector for J1
Table 5 Data Communication Connections
RS232 Connections
RD
No connection
TD
No Connection
Signal Common
Shield
Section 2
3.
Mounting Holes on the I/O PCB
Assembly for the Standoffs
RS422/485 Connections1
RD–A
RD–B
TD–A
TD–B
Network Signal Common
Shield
Serial Data Connections
Page 43

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