RFL Electronics GARD 8000 - Figure 10-6. CLI Meter, Front Panel Mounting on 3 U Chassis

Power Line Carrier
GARD 8000 SYS RFL Electronics
April 23, 2015 10-17 973.334.3100
-3 dB
1.75V
1.75V
0.35 mA
35 uA
-6 dB
1.00V
1.00V
0.20 mA
20 uA
-10 dB
0.0V
0.0V
0 mA
0 uA
10.7.1 CARRIER LEVEL INDICATOR, FRONT PANEL METER
A popular option for the GARD 8000 when PLC is employed is a Carrier Level Indicator Meter
(CLI Meter). Typically the meter is factory installed on the Front Panel as shown below.
NET
RESE
T
PWR
RECEIVE LEVEL
dB
CLI Meter
Figure 10-6. CLI Meter, Front Panel Mounting on 3U Chassis
The GARD carrier level indicator RX value is displayed on the meter. The value displayed represents
a variance in received signal level from the initial signal level when the unit was commissioned. The
meter is normally factory installed and MUST be used in conjunction with the Digital PLC Module
(500455-1). The meter is connected to J6 on the Digital PLC Module as show in the following
illustration. There are two potentiometers for Offset and Scale. Normally no adjustments are necessary
as the CLI Meter is calibrated before leaving the factory, but if tuning is required instructions are given
at the end of this section.