SPECIFICATION SHEET
JFW MODEL 50PA-557
PROGRAMMABLE ATTENUATOR ASSEMBLY
Frequency Range
Configuration
Impedance
Attenuation Range
VSWR
Attenuation Accuracy
(guaranteed monotonic)
Insertion Loss
RF Input Power
Switching Speed
700-3000 MHz
JFW Industries, Inc.
Phone: 317-887-1340
sales@jfwindustries.com
www.jfwindustries.com
Eight individually controlled
solid-state programmable attenuators
50 Ohms nominal
0-127 dB in 1 dB steps
1.6:1 maximum
± 0.5 dB or 2%
(whichever is greater)
6.0 dB maximum
+20 dBm average
5 microseconds typical
(after command is received and
processed)
(3 milliseconds typical processing time)
100-240 VAC @ 47-63 Hz
20-Button Keypad and LCD display
RS-232 (9600, 19200, or 38400 Baud)
Ethernet (TCP, 10/100, up to 4 users)
Attenuator Control Commands:
Set Attenuator, Set Attenuator with
Response, Read Attenuator, Set All
Attenuators, Read All Attenuators, Set
Multiple Attenuator, Fade Attenuator,
Variable Handover, Store, Recall
System Commands:
Identification, Pause
-RS-232 Only:
Change Baud
-Ethernet Only: Disconnect, Close,
Message, Clear
AC Supply
Manual Control
Remote Control
Remote Commands
RF Connector
Operating Temperature Range
SMA or N female
0ºC to +50ºC
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JFW FORM E-7-F REV F
JFW [ JFW INDUSTRIES, INC. ]
