Model 5328A
Operation
VOLTAGE SELECTOR switches. Selects 100/120/220/240 volt operation.
LINE FUSE. Requires a 2.0 amp fuse for 100-120 volt operation or a 1.0 amp fuse for 220-240
volt operation.
AC Line connector. IEC type with offset pin connected to chassis.
ARM switch. With switch in OFF, counter
is
armed by the same signal which
is
involved in the
measurement (e.g., FREQ A measurements are armed by the signal at channel A). With
arming ON, the measurement
is
armed by an input other than the input involved in the
measurement. The following are armed by an event at
B:
FREQ A, PERIODA, PERIODAVG
A, FREQ C, DVM, C/A; the following are armed by an event at
C:
T.I. A-B, T.I. AVG A+B,
EVENTS C A+B, B/A (see Table 3-1).
STORAGEswitch. Holds reading between samples when ON.
WhenOFF,allowscontinuous
display of count.
OSC switch. In INT, selects normal operation of counter using internal time base. In EXT,
permits use of external time base applied to input connector
@.
External Oscillator Input/lnternal Oscillator Output connector. When OSC switch
0
is
in
INT,
a
buffered TTL signal derived from the internal time base
is
available at the connector.
When OSC switch
is
in EXT, the external time base
is
applied to the connector.
TB OUT connector. In START CLOCK position of the FUNCTION switch, providesTTL level
at the frequency of the internal oscillator (10 MHz) divided by N (RESOLUTION switch). In
START A the frequency at INPUT A divided by N,
is
available.
GATE OUT connector. High when the main gate
is
open.
INHIBIT connector. A TTL low or ground, when applied to this input (TTL standard load
impedance), inhibits the counter from making a measurement.
Option 011 HP-IB lnterface connector (24-pin). Used to convey data and programming
instructions.
Option 011 HP-IB lnterface address switch. See paragraph 5-4.
Figure
3-9.
Model
5328A
Rear Panel Controls and Connectors
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