Dec 550 And Dec 6000 Controllers P20 Rs-485 Connections; Dec 550 Controller Rs-485 Connections; Dec 6000 Controller Rs-485 Connections - Kohler APM802 Installation Instructions Manual

DEC 550 Controller.
RS-485 connections and Figure 34 shows the
DEC 550 controller with P20 location.
DEC 6000 Controller.
RS-485 connections and Figure 35 shows the
DEC 6000 controller with P20 location.
P20 Circuit Board
Connector Designation
P20-1
P20-2
P20-3
Note: When using RS-485 communication cable, connect the
"shield" wire at either end but not at both ends.
Figure 33 DEC 550 and DEC 6000 Controllers P20
RS-485 Connections
2
1
1. Main circuit board (top view)
2. P21 for KBus RS-485 communication connection
3. P20 for RSA III RS-485 communication connection
4. Main logic (microprocessor)/communication circuit board
Figure 34 DEC 550 Controller RS-485 Connections
22
Figure 33 shows the
Figure 33 shows the
Wire
Designation
GND Shield
+ White
-- Black
3
4
TT-1377
2
1
1. Interconnect circuit board (top view)
2. P21 for PGEN communication connection
3. P20 for RSA III RS-485 communication connection
4. Main logic (microprocessor)/communication circuit board
Figure 35 DEC 6000 Controller RS-485 Connections
3 4
TP-6750
TT-1625 7/17