Power Line Carrier ____________________________________________________________________
RF-MCGARDPRO
Hubbell Power Systems, Inc.
–
RFL™
Products
July 1, 2022
©2022 Hubbell Incorporated
5-34
3.
Current Force Carrier State:
Once the carrier state has been changed and the command
sent and verified, the change in state will be displayed here.
These status indicators (which are fixed) are derived from the On/Off configuration web
page and displayed here for reference.
4.
Frequency:
Displays the current settings.
5.
Send
: In 'Master' mode, starts the checkback test. In 'Remote' mode, send the remote-
initiate code. If 'Disabled’, this button is also disabled.
6.
Send Checkback Code:
Sends the selected checkback code to the far end as follows:
1-16 or none. Click the “Send” button. A confirmation window will appear, click “Send
Command.”
Click to send the Remote Initiate code to the Master end.
7.
Send Hard Carrier:
Sends the selected hard carrier request to the far end. The selections
are 1 to 4 or none. Once selected click “Send.”
8.
PLC Module Logic Bus Outputs:
Enables or disables the Logic Bus Outputs. Once a
change is made click the “Activate” button to change the Logic Bus Output state.
5.4.3 Receiver Operating Range and Dynamic Range
RX AGC Setpoint
setting Sets headroom in
the analog portion of receiver. Set to 30 dB
Nominal Trip Level (Boost)
Nominal Guard Level
Maximum receiver sensitivity 25 Vrms
Signal Dropout Alarm
(FSK only)
Min RX Level
Setting On/Off = -15dB/FSK = -11dB
For On/Off determines max inst. drop from nominal to block
For FSK determines max inst. drop from nominal to trip
+30 dB
+10 dB
0 dB
Maximum receiver sensitivity 5 mVrms
-10 dB
-11 dB
-25 dB
Dynamic
Range
FSK Trip RX Threshold
(FSK Only) Absolute minimum
level required to trip. Recommended setting 25 dB
(Range 0 dB to 100 dB)
Receiver
Operating
Range
SNR Alarm Threshold
(FSK Only) Issues an alarm, and disables tripping for noise levels exceeding the ratio setting.
Recommended setting 10 dB (0 dB to 30 dB range)
Figure 5-17. Receiver Operating Range and Dynamic Range