MODEL 1586-04-0431 RF Attenuator
1.0 General
1.1 Equipment Description
- The 1586-04-0431 Programmable Attenuator contains two 0.5 to 4 GHz and two
25 to 31 GHz Digital PIN Attenuators and Local/Remote control circuitry to independently adjust each
attenuator. Multi-function push button switches select the attenuation locally. The attenuator values are stored
in nonvolatile memory so these values remain when power is cycled off and on. Front panel LEDs provide
indication of DC power (green), Alarm (red), and Remote (yellow). Each Attenuator provides an attenuation
range of 60 dB from
10 to 70 dB
attenuation. Remote operation also controls each attenuator, provides status
monitoring of attenuator settings, power supply, and summary alarms. Attenuator settings appear on the LCD
display.
An “Offset” command allows adding an external attenuator to shift the attenuation range by the
amount of the attenuator with the total attenuation shown on the display and via the M&C.
Connectors
are SMA, female (CH1, CH2) or 2.92 mm (CH3, CH4) for inputs and outputs and DB9 female for the RS422
remote control
(Ethernet Optional)
. It is powered by a 100-240 ±10% VAC power supply
(Option -R for
redundant supplies),
and in a 1 3/4” X 19 “ X 16” rack mount chassis.
MENU
EXECUTE
MODEL 1586
C
ROSS
T
ECHNOLOGIES INC.
G1=-33.0 G2=-41.0
G3=-17.0 G4=-52.0
REMOTE
ALARM
POWER
RF ATTENUATOR
FRONT PANEL
AC
GND
RF IN -1
RF OUT-2
J10
AND
MONITOR
CONTROL
J20
1
5
2
3
4
6
7
8
9
RF IN -2
RF OUT-1
J102
J103
RF IN -3
RF OUT-4
RF IN -4
RF OUT-3
J106
J107
J101
J104
J105
J108
REAR PANEL
FIGURE 1.1 Model 1586-04-0431 RF Attenuator Front and Rear Panels
CHANNEL 1, 2
0.1 to 4.0 GHz
1586-04-0431 Attenuator
Block Diagram
0.5 to 4.0
GHz
CH1, CH2
OUT
0.5 to 4.0 GHz
CH1, CH2 IN
M&C
ATT CONTROL
CONTROLLER
V
A
R
A
T
T
25 to 31 GHz
CH3, CH4
OUT
25 to 31 GHz
CH3, CH4 IN
V
A
R
A
T
T
CHANNEL 3, 4
25 to 31 GHz
A
T
T
A
T
T
A
T
T
FIGURE 1.2 Model 1586-04-0431 RF Attenuator Block Diagrams
1586-04-0431 Manual
Page 3
4/12/21
