Communication Modules (Circuit Board) Versions; Circuit Boards Views - Kohler Decision-Maker 1 Manual

8.19.1 Communication Modules
(Circuit Board) Versions
GM47242 Circuit Board. This is the communication
module for all models except the 450/500REOZVB
models and is superceded by GM49791-1.
Figure 8-43.
2
1
5
1. P9 connector, 10-position
2. SW2 DIP switches (set to open position)
3. TB5 Terminal connectors
4. P8 connector, 24-position
5. Connect to user input 3
Figure 8-43 Communication Circuit Board GM47242
GM49791-1 Circuit Board. This is the communication
module for all models and includes the gauge driver
provision needed to drive the oil pressure and water
temperature gauges for some models (requires
application software version 1.23 or later).
Figure 8-44.
GM49791-2 Circuit Board. This is the interface circuit
board with the gauge drivers required on the
450/500REOZVB models only.
purposes replace GM49791-2 with GM49791-1.
GM49791-2 is mounted in the communication module
location but does not provide the communication
function. See Figure 8-45.
TP-6356 4/12
See
3
4
GM47242-
See
For communication

8.19.2 Circuit Boards Views

Figure 8-43, Figure 8-44, and Figure 8-45 show the
differences between the communication circuit boards
and the interface circuit board with gauge drivers. The
SW2 DIP switches should be set to the open position
unless the instructions supplied with the kit indicate
another configuration.
2
1
5
1. P9 connector, 10-position
2. SW2 DIP switches (set to open position)
3. TB5 Terminal connectors
4. P8 connector, 24-position
5. Connect to user input 3
Figure 8-44 Communication Circuit Board
GM49791-1
1. P8 connector
Figure 8-45 Gauge Driver Circuit Board GM49791-2
Section 8 Component Testing and Adjustment
3
4
GM47242-
1
GM47242-
147