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ARMA-C250-CRM
38
To switch to either LOCAL or REMOTE control mode perform the following steps:
1.
From the main menu, press either
[
]
or
[
]
successively to select the following display:
or
2.
Press
[Enter]
to switch modes. When switching to LOCAL control, the unit will wait 30
seconds before yielding local access. This measure allows a remote operator to cancel the
request for local access via the serial interface.
Note: The normal status of the amplifier is ‘REMOTE’, therefore a local operator must
always change control back to ‘REMOTE’ after completing SSPA’s adjustments.
5.5
S
ETTING
F
AULT
C
ONDITION FOR
L
OW
O
UTPUT
P
OWER
As the SSPA has a variable gain attenuation feature, the operator can set the minimum output
power value (in dBm) below which a fault will be generated.
5.5.1
A
T THE
F
RONT
P
ANEL
:
1.
Verify that the unit is in LOCAL control mode (REMOTE/LOCAL LED indicator is OFF).
If not, switch to LOCAL mode as instructed in
Section 5.4
page 37.
2.
In the main menu, use the
[
]
and
[
]
keys to select the MONITOR CALIBRATION
display.
3.
Press
[Enter] until
you see the following display:
4.
Use the
[
]
and
[
]
keys to select the minimum acceptable output power level below which
the amplifier shall signal a fault condition. Each press of a button either increases or
decreases the output level by 0.1 dB increments. Holding a button will cause the display to
increment/decrement automatically at a faster rate.
5.
Press
[Enter]
to confirm your selection.
5.5.2
U
SING THE
S
ERIAL
I
NTERFACE
:
1.
Verify that the unit is in REMOTE control mode (REMOTE/LOCAL LED indicator is ON).
If not, switch to REMOTE mode as instructed in
Section 5.4
page 37.
2.
From Screen (menu) #1, use the ‘F9’ function key to select the SSPA and then from Screen
(menu) #2, select ‘F9’ (‘Thresh’). At the prompt, enter minimum output power level,
STATUS: ____
<ENTER> FOR LOCAL CTL
STATUS: ____
MONITOR CALIBRATION
STATUS: ____
OUT POWER THRESHOLD
STATUS: ____
<ENTER> TO GO REMOTE
Summary of Contents for ARMA-C250-CRM
Page 13: ...ARMA C250 CRM 12 Figure 1 Product Outline redundant system front and rear views...
Page 14: ...ARMA C250 CRM 13 Figure 2 Waveguide Connections top view side view...
Page 56: ...ARMA C250 CRM 55 Figure 12 Product Outline single unit...
Page 57: ...ARMA C250 CRM 56 Figure 13 3 D View of the Redundant System in rack cabinet...
Page 58: ...ARMA C250 CRM 57 Figure 14 Enlarged 3 D View of the Redundant System in rack cabinet...