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User's Guide ______________________________________________________________________
338 _________________________________________________________________ M210933EN-C
Communication Modules
RS-232 Module DSU232
The unisolated RS-232 module provides either a double serial channel
without handshaking or a single RS-232 with handshaking. In addition,
an optional SDI-12 interface is available.
1007-019
Figure 171 RS-232 Wiring Diagram
1006-123
Figure 172 Suggested T-Connection in Dual Port Mode
For the SDI-12 wiring with the later version, see Figure 178 on page
343. The SDI-12 data pin is the same as in the dual RS-485 module, and
the same wiring method can be used as in Figure 178 on page 343.
See Figure 178 on page 343 and Table 74 on page 339 for the SDI-12
jumper of DSU232-C.
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