HP 8901B Operation And Calibration Manual page 50

Installation Model 8901B
Interconnections
Interconnection data for the Hewlett-Packard Interface Bus is provided in Figure 2-3.
Mating Connectors
Interface Connector.
The HP-IB mating connector is shown in Figure 2-3. Note that two securing
screws are metric.
Coaxial Connectors.
Coaxial mating connectors used with the Modulation Analyzer should be the
50R BNC male connectors or 50R Qpe-N male connectors that are compatible with those specified
The application note, "Principles of Microwave Connector Care" (HP part number 5958-7442) can help
you improve measurements and reliability. Suggestions in the application note will help you get the best
performance from all microwave connectors.
It
will
show what
to
look for when cleaning and inspecting
connectors (in order
to
preserve their precision and extend their life) and how
to
make the best possible
microwave connections (improving the accuracy and repeatability of all your measurements).
in
US
MIL-(2-39012.
Operating Environment
The operating environment should be within the following limitations:
Temperature..
..........................................................
-0°C
to
+55"C
Humidity
................................................................
<95% relative
Altitude
.......................................................
.4570 meters (15 000 feet)
Bench Mounting
The instrument cabinet
has
plastic feet and fold-away tilt stands for convenience in bench operation.
(The plastic feet are shaped to ensure self-aligning of the instruments when stacked.) The tilt stands
raise the front of the instrument for easier viewing of the front panel.
Rack Mounting
The Modulation Analyzer i s heavy for its size (23.6 kg, 52 lb). Care must be
exercised when lifting to avoid personal injuv. Use equipment slides when
rack mounting.
Rack
mounting information is provided with the rack mounting kits. If the kits were not ordered with
the instrument as options, they may be ordered through the nearest Hewlett-Packard office. (Refer
to paragraph 1-8, Additional Equipment Information under Mechanical Equipment Available. Before
rack mounting the Modulation Analyzer, the Operating Information pull-out tray (attached to the
bottom of the instrument) must first be removed. To remove the pull-out card assembly, refer
to
the
procedure that follows.
Removal and Installation of Operating Information Pull-Out Cards
Steps for Removal.
Follow the procedure below
to remove the Operating Information pull-out
card assembly:
1. Remove the
two front feet of the instrument.
2. Remove the Operating Information tray assembly by sliding the tray toward the rear of the
3. Remove the information cards by bowing them slightly in the middle and pulling it straight up
instrument and then down.
(away from the tray).
2-8