Power Line Carrier
GARD 8000 SYS RFL Electronics
April 23, 2015 10-18 973.334.3100
Offset Potentiometer
Scale Potentiometer
J6
Figure 10-7. PLC Digital Module (500455-1)
The Offset and Scale potentiometers on the PLC Digital Module are factory set and should not
normally need adjustment. However, if changes are made to either the digital board or CLI meter the
scale can be reset as shown below.
Note: This adjustment should only occur after the receive commissioning procedure has been
completed, see section 4.6.3.3.
1. Set the RX level to a non 0 dB level relative to nominal (the further from 0 dB without
exceeding the range of the meter the better).
2. Adjust R237 (Scale) such that the meter displays the relative level of the RX signal.