Racal Instruments 2151 Manual page 11

20 ghz and 2.6 ghz vxi counters
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Power
Requirements:
OPTIONS
Voltage
Voltage
Current
-2VDC
OA
+5VDC
B40mA
+
5V
DC
(standby)
OA
-5.2V
DC
B25mA
+
12V
DC
600mA
-12V
DC
0A
+
24
V DC
172mA
-24V
DC
0A
Option
11
Power
Limiter
Internally
fitted to
increase Input
C
protection
Max.
CW
Power 36dBm
(4W)
to
IB
GHz
decreasing
to
34dBm
(2W)
at
20
GHz
Insertion
Loss
3
to
4dB
depending on frequency
Ordering Information
2151
20GHz
VXIbus
Microwave Counter
Power
Rating
<20W
Operating
Temp.
Range
0
D
C
to
50°C
Storage
Temp.
Range
-40°C
to
+
70°C
Safety
Designed
to
meet
the
requirements
oflEC 348 and
follow the guidelines
of
UL
1244
Cooling Requirements:
Air
Flow
0.43
litres/sec
Differential
Pressure
0.3mm
HzO
OPTIONS
11
Input
Power
Limiter
11-9011
69
1.3
GHz
Fuse
(pkt
5)
11-1718
93
High Impedance
100MHz
probe
23-9104
SUPPLIED ACCESSORIES
Operators
Manual
Spare
Channel
B
(1.3GHz) Fuse
This
is
the
recommended working
point
to
give u
10°C
maximum
rise
in
temperature
for
both 2051
and
2151.
VXIbus
SPECIFICATIONS
Device type
VXIbus
message
based instrument
Compatibility
Protocol
Output
Module
Fully
compatible
with
VXIbus
System
Specification
Revision
1.2
for
message
based instruments
Word
Serial,
EEEE-STD-48B.2
Engineering
format,
12
digits
and exponent
C-size,
2
slot
wide
262mm
(H) x
60.7mm
(W)
x
355mm
(D)
Weight
3.0
kg
maximum
Logical
Address
Switch
selectable
1 to
254
Interrupt Levels
Switch
selectable 1
to
7
1-4
2151
OPS
A1571/DA
ALOl/Iss.0
1/03.94

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2051

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