Lna current calibration and current window, Lna fault logic, Redundancy controller auto/manual – Comtech EF Data CSAT-6070 User Manual

Page 62

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/50 Watt C-Band Transceiver

Revision 0

System Operation

MN/CSAT607050.IOM


Associated Remote Command(s):

LCS=

Example(s): LCS=1

3.3.14 LNA C

URRENT

C

ALIBRATION AND

C

URRENT

W

INDOW

The CSAT provides the capability to monitor the LNA current when configured
to supply current to a LNA. In addition, an adjustable window detect for the LNA
current is provided. After attaching the LNA and turning on the current source,
the user can ‘Calibrate’ the current and set a window from

±20% to ±50% to

trigger an alarm. The user can disable the ‘window detect’ feature by setting the
window value to

±99%. (The factory default is 99)


Associated Remote Command(s):

CAL= , LCW=

Example(s):

CAL= , LCW=40

3.3.15 LNA F

AULT

L

OGIC

The CSAT allows the user to select whether or not the summary fault relay is
activated if the LNA current moves out the prescribed window. This allows the
user to control whether or not the redundancy controller will switch on a LNA
current alarm in the redundant configuration. (The factory default is 0)

Associated Remote Command(s):

LFL=

Example(s): LFL=0

3.3.16 R

EDUNDANCY

C

ONTROLLER

A

UTO

/M

ANUAL

The Operating mode of the Comtech EF Data Redundant Switch Unit (RSU-
5060) can be set via a command to the ONLINE CSAT. The RSU-5060 initializes
to the AUTO mode when power is first applied.

• In AUTO mode the RSU-5060 monitors the state of the two CSATs and

will automatically switch the OFFLINE unit online if the ONLINE unit
faults.


• In MANUAL mode, the RSU-5060 will only switch the position of the Tx

and Rx transfer switches when commanded to do so via either the RTG=
command or via Pin V on the ‘M&C Control’ connector (J5) on the RSU-
5060. The user sets AUTO mode by sending a ‘1’ in the data field and
MANUAL mode with a ‘0’ in the data field.

Associated Remote Command(s):

RAM=

Example(s): RAM=1

3-8

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