Vaisala MAWS201 User's Guide download pdf (Page 169)

Chapter 7 _____________________________________________________________ Technical Data

VAISALA _______________________________________________________________________ 167

Figure 125 on page 166 provides a schematic wiring diagram for the

dual RS-485 connection, the dual 2-wire connection utilizing both

channels. The correct jumper settings for the channel B are listed in

Table 37 below. The jumpers are located on the module as illustrated

in Figure 126 below.

Table 37 The Jumper Settings for Channel B in the RS-485

Mode

Jumper Connected

Pins

Function

1-2X3

3-4

X6 1-2

Sets the RS-485 mode active for the channel

X5 1-2 The line terminating resistor is in use with RS-

485.

0201-049

Figure 126 DSI486 Default Jumper Locations

0201-050

Figure 127 DSI486 Wiring Diagram for RS-485 and RS-232

1 2 ... 164 165 166 167 168 169 170 171 172 173 174 ... 195 196

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Vaisala MAWS201 User's Guide Page 169