Model 6820 / 6820-EVS Installation Manual
LS10144-001SK-E
3-5
3.6
Board Assembly Diagram
Figure 3-2 Model 6820/EVS Assembly
Figure 3-2 shows the circuit boards and annunciator. If you should need to remove the control board for repair,
do so by removing the nuts that hold the heat sink bracket to into the cabinet. Then lift the control board out of
the cabinet.
AC Power
Input
Battery
Connection
SLC
SLC
PGM
Phone Lines
EXT. COMM
SBUS
In/Out
Trouble
Relay
Relays
NAC
Flexput
Circuits