![background image](http://html1.mh-extra.com/html/advantech/arma-c250-crm/arma-c250-crm_installation-and-operating-manual_2858252040.webp)
ARMA-C250-CRM
39
disregarding the decimal point. For example, to request a minimum output power of 30.0
dBm attenuation, enter 300.
5.6
G
AIN
A
DJUSTMENT
The output attenuation of the amplifier will be set to the factory default setting of 10dB or the
previous setting stored in memory.
5.6.1
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
at page
2.
In the main menu, use the
[
]
and
[
]
keys to select the ADJUST ATTENUATION display.
3.
Use the
[
]
and
[
]
keys to select the gain attenuation level in dB. Each press of a button
either increases or decreases the attenuation by 0.1 dB increments. Holding a button will
cause the display to increment or decrement automatically at a faster rate.
4.
Press
[Enter]
to confirm your selection.
5.6.2
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
Section 5.4
at page
2.
From Screen (menu) 1, use the ‘F9’ function key to select the SSPA and then ‘F8’ (‘Atten’).
At the prompt, enter attenuation level (from 0 to 20.0 dB), disregarding the decimal point.
For example, to request 15.5 dB attenuation, enter 155. For an attenuation level of 4.0 dB,
enter 40.
5.7
P
OWERING
U
P THE
A
MPLIFIER
To power up the amplifier (i.e. activate the RF portion of the SSPA) after the shutdown, do one
of the following:
5.7.1
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
at page
2.
In the main menu, use the
[
]
and
[
]
keys to select the TO POWER PA display.
3.
Press
[Enter]
to confirm your selection.
STATUS: ____
ADJUST ATTENUATION
STATUS: ____
<ENTER> TO POWER PA
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...