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Comtech EF Data CPA User Manual

Page 107

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CPA C-Band Solid State Power Amplifier

Revision 1

Serial-based Remote Product Management

MN/CPA-IN.IOM

7–7

Parameter Type

Command

(Instr Code and

Qualifier)

Arguments for

Command or

Response to Query

Description of Arguments

(Note that all arguments are ASCII numeric codes, i.e., ASCII codes between 48 and 57)

Query

(Instr Code and

Qualifier)

Response to Query

(Target to controller)

Auto Fault

Recovery

AFR=

1 byte,

value of 0, 1

Command or Query.
The SSPA output will automatically be muted in the event of detected fault. If auto fault

recovery is enabled, it will cause the output to go active (un-mute) if all faults are cleared. If

disabled, the output will remain muted even if all faults are cleared.

AFR?

AFR=x

(same format as

command arguments)

RF Power

Amplifier State

AMP=

1 byte,

value of 0, 1

Command or Query.
Turns ON or OFF the RF power amplifiers.

0 = Off

1 = On
Example: AMP=1

AMP?

AMP=x

(same format as

command arguments)

Attenuation

ATT=

5 bytes,

numerical

Command or Query.
Valid attenuation level, in dB, at 0.25-dB step size as factory default.
Example: ATT=12.25

ATT?

ATT=xx.xx

(same format as

command arguments)

Clear All Stored

Events

CAE=

None

Command only.
Instructs the SSPA to clear all Stored Events

This command takes no arguments.
Example: <1/CAE=’cr’

N/A

N/A

Concise

Alarm Status

N/A

variable length, alpha

numerical

Query only.
Used to Query the Alarm status of the unit.

Example: <0001/CAS?

>0001/CAS=a;b;c;d;e;f;g;h;i;j;k;l;m;n;o;’cr’’lf’ where:

0 = OK, 1 = Fault, 3 = Not Applicable, 4 = Alarm, 5 = Masked

a = 28V Power Supply

b = 15V Power Supply

c = 7.5V Power Supply

d = 5V Power Supply

e = -5V Power Supply

f = 9V or 10V RF Power Supply 1

g = 9V or 10V RF Power Supply 2

h = Heat-Sink Temperature 1

i = Heat-Sink Temperature 2

j = Isolator Load Temperature

k = Shutdown

l = Fan 1

m = Fan 2

n = BUC

o = External Reference

CAS?

CAS=x….x

(see Description of

Arguments)

Concise RF

Power FET

Current Status

N/A

variable length

Query only.
Concise version of RFS.

Example: CFS=xx.x;xx.x;xx.x;xx.x;……….;xx.x;

CFS?

CFS=x…..x

(see description of RFS.

Note that each

argument is separated

by a semicolon )