Installation Instructions; Figure 2-4. 10811B Supply And Output Connections - HP 10811A Operating & Service Manual

2-22. The 10811 B Oscillator uses solder terminals with filtered feedthrough capacitors for power and
oven monitor outputs and 5MB subminiature rf snap-on connectors for the 10 MHz output and
EFC. The 10811 B also has one internally threaded mounting stud on the bottom cover and two
located on the top. The three studs are threaded for 4-40 screws, 1/4-inch deep. These mounting
studs may be used with vibration isolators such as the LORD #J2924-2-1 (HP Part No. 1520-
0094). However, for ease of testing and interfacing, a 6-pin Amphenol connector is attached. If
you wish to use this connector, the following parts are required to build its mate.
Description
Receptacle
Pin-Female
Guide-Pin
If you do not wish to use the Amphenol connector, it may be easily removed. The 5MB connectors mate
to Cablewave Systems, Inc. #700156 or equivalent HP Part No. 1250-0885 (not supplied).
shows the connections for the 10811 B Oscillator.

2-23. INSTALLATION INSTRUCTIONS

Figure 2-5 shows the mechanical mounting dimensions of the 10811A/B Oscillators for use in
2-24.
custom installation. Since all quartz oscillators are sensitive to shock, vibration, radiation fields,
and ambient temperature changes, to obtain the best performance from your 10811A/B, these
factors should be taken into consideration. To optimize performance therefore:
1. The 10811A/B should be mounted in an area that has a minimum amount of vibration or shock
accelerations. In addition, the 10811 A/B should be mounted so that the vibrational forces act
along the "minimum G sensitivity" axis shown in
2. The 10811A/B should be mounted as far as possible from transformers or fan motors that
radiate electromagnetic fields.
3. The 10811A/B should be mounted away from the main system airflow in order to isolate it as
much as possible from ambient temperature changes.
Quantity
1
5
2

Figure 2-4. 10811B Supply and Output Connections

HP Part No. Amphenol Part No.
1251-4297
1251-4734
1251-0597
Figure 2-5.
Model 10811A/B
221-1508
220-883-03
221-590
Figure 2-4
9