RFL Electronics GARD 8000 - On-Off Operation

Power Line Carrier
GARD 8000 SYS RFL Electronics
April 23, 2015 10-6 973.334.3100
Table 10-1. 2F Trip Transport Delay and Channel Spacing
Configuration Settings
Nominal Trip
Transport Delay
(With
recommended
Settings)
Minimum
Permissible
Unidirectional
Channel
Spacing
Minimum
Permissible
Bidirectional
Channel
Spacing
Nominal Receive Bandwidth: 200 Hz
Tx Frequency Shift: +/- 100 Hz
12.0 – 13.0 ms
500 Hz
1000 Hz
Nominal Receive Bandwidth: 500 Hz
Tx Frequency Shift: +/- 250 Hz
8.0 ms
1250 Hz
2500 Hz
Nominal Receive Bandwidth: 1000 Hz
Tx Frequency Shift: +/- 500 Hz
6.0 ms
2500 Hz
5000 Hz
Table 10-2. 3F Trip Transport Delay and Channel Spacing
Configuration Settings
Nominal Trip
Transport Delay
(With
recommended
Settings)
Minimum
Permissible
Unidirectional
Channel
Spacing
Minimum
Permissible
Bidirectional
Channel
Spacing
Nominal Receive Bandwidth: 200 Hz
Tx Frequency Shift: +/- 200 Hz
12.0 – 13.0 ms
700 Hz
1200 Hz
Nominal Receive Bandwidth: 500 Hz
Tx Frequency Shift: +/- 500 Hz
8.0 ms
1750 Hz
3000 Hz
Nominal Receive Bandwidth: 1000 Hz
Tx Frequency Shift: +/- 1000 Hz
6.0 ms
3500 Hz
6000 Hz
10.3 ON-OFF OPERATION
On-Off operation defines the absence of a tone (Off) to be the guard condition. The presence of a tone
(On) is the trip condition. Since there is no tone present under normal non-trip operating conditions, no
receive AGC functions may be performed. Therefore, the nominal receive signal level is determined