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11
IV. ACCESSORIES, OPTIONS AND SUB-UNITS
tll
1. Standard accessories supplied with the instrument
1 mains cable
1 manual
1 Allen wrench
2. Options, sub-units
and accessories to be ordered
separately
2.1. Oven-enclosed oscillators
PM 9680A
option for model PM 6650 B
PM 9681
option
for models
PM 6650 A and
PM 6650 B
2.2. Data peripherals
PM 9684
BCD output unit
PM 9685
Remote control unit
PM 9686
Bus system interface
~—
PM 9687
D/A Converter
2.3. Sub-units
PM 6632
Pre-scaler, 810 MHz
PM 6633
Pre-amplifier
PM 6634
Microwave converter, 12.6 GHz
PM 6636
Pre-scaler,
1 GHz
Figure IV-1._
Rear panel PM 9664 for interconnection
of counter and sub-unit
Figure IV-2.
PM 9680 A, or PM 9681, crystal
oscillator in proportionally controlled
oven
2.4.
2.5.
2.6.
27.
Input interface accessories
PM 9351
Passive measuring probe 10 MQ//11 pF
220 MHz, attenuation 10x
PM 9353'
FET probe, 1 MQ//3.5 pF, 220 MHz
PM 9346
Power supply for PM 9353
PM 9584
Resistive mixing piece, 50 Q, 3 BNC
sockets
PM 9665 _ _Low-pass filter with 3 BNC inputs:
< 50 kHz, < 500 kHz, < 5 MHz.
Coaxial cables
PM 9074
50 Q, BNC to BNC, length 1 m.
PM 9588 = Set of 50 O cables, BNC to BNC:
5 cables, length 20.7 cm
4 cables, length 40.5 cm
3 cables, length 60.3 cm
3 cables, length 198.6 cm
Mains cable
PM 9011
3-core detachable mains cable.
Cabinets and blank panels (refer to chapter II for
full details)
PM 9664
Rear panel for cabinet PM 9716 A
PM 9714A
Bench cabinet, 4/6 rack size
PM 9716A
19" cabinet, 6/6 rack size
PM 9721
Blank panel, 1/6 rack size
PM 9722
Blank panel, 2/6 rack size
Figure IV-3.
PM 9684, BCD output unit
Figure IV-4.
PM 9685, remote control unit
Figure IV-5.
PM 9687, digital to analogue converter
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