HP 8444A - Rear Panel

Model 8444A
Operation
REAR PANEL
@ AUX RF OUTPUT. Type BNC connector — Tracking
Generator auxilliary RF output. Same frequency as
signal out front panel RF OUTPUT connector. For
use with external frequency counter during precision
frequency measurements. Terminate in 50 ohms.
O THIRD LO INPUT. Type BNC connector — Input
for Spectrum Analyzer third LO (500 MHz). Norm-
ally used with 8555A RF Section. Parallel with front
panel THIRD LO INPUT which is normally used with
8554B RF Section.
@ ACCESSORY OUTLET. Line power outlet. Con-
nected to power line module input. Provides ac outlet
for use by accessory equipment.
Note
See Table 1-4 for HP part numbers of inter-
connecting power cords.
©
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Line power module. 115/230V, 48—440 Hz.
‚Line input. Connects to external ac power source.
Supplies ac power to ACCESSORY OUTLET when
connected to external power source.
115/230V Switch. Line voltage slide switch; controls
power supply input connections. Check that switch is
set for nominal voltage of ac line. To change setting:
remove power cord from line input (5) , slide protec-
tive cover aside, extract fuse with FUSE PULL (7)
and slide switch to desired position. Replace fuse
with a fuse of the value indicated for the desired
switch position.
Fuse extractor and switch lock. Prevents line switch
from being actuated until fuse is extracted.
Line input fuse. Rating of fuse to be used is marked
near line voltage slide switch setting corresponding to
nominal ac supply voltage.
Figure
3-2.
Model
8444A
Tracking
Generator
Rear
Panel
Controls
and
Connectors