CHPA
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ERIES
D
OC
.01023245
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3-15
Table 3-8. CHPA Commands (continued)
ASCII Byte
Decimal Command Definition
a 97
Reset to Defaults.
Reset the unit operating state and fault/alarm trip point
values to firmware defaults except Helix Over Voltage, Helix Under Voltage,
and Helix Average Over Current fault trip limits.
Table 3-8 Notes:
1.
If the ALC mode is active, it will be terminated.
2.
Specify the setting value in the form NNNN (including leading zeros).
3.
Linearizer commands are active only if internal linearizer is installed and S1-1 on 01020360 (CCA, Controller Interface) is ON
4.
For CHPA Protocol Option (DIP Switch S1- Switch #2 of Interface CCA is ON), Attenuator setting is of the form NN.NO dB.
3.10.1 Slow
Commands
A subset of CHPA commands, these commands may require several seconds to complete. These
commands are listed in the CHPA commands table (Table 3-8).
Table 3-9. Slow Commands
ASCII Byte
Decimal Commands (for description and note, see Table 3-8)
D 68
Set RF O/P power in dBm
.
(
see note 1)
E 69
Set RF O/P power in Watts
.
(
see note 1)
F 70
Set ALC RF O/P in dBm
.
G 71
Set ALC RF O/P in watts
.
Table 3-10. Interface Commands
ASCII Byte
Decimal Command Definition
R 82
Enable RF Limits
. RF O/P power commands will be rejected (reject code “b”) if
they exceed the Low RF Fault or High RF Fault Trip settings.
S 83
Disable RF Limits
. Cancels the Enable RF Limits command.
T 84
Not
used
U 85
Not
used
