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19

CHAPTER 3: Installation

Figure 4. Simplified Functional Block Diagram (DTE Operation).

NOTE

The delay settings for W9 apply only to the CTS output of the

RS-232↔ 485/422 Converter. Since CTS is not used when the

RS-232↔ 485/422 Converter is configured as a DTE device, placing

jumper W9 in either the 0-, 10-, or 30-msec position will allow the CD

input to enable the RS-485 driver. When jumper W9 is in the ON

position, the CD input has no affect on the RS-485 driver.

Opto-isolated barrier

in IC109 models

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