Fluke 5700A Series II - 3-4. Rear Panel Features

5700A/5720A Series II
Operators Manual
3-12
3-4. Rear Panel Features
Rear panel features (including all terminals, sockets, and connectors) are shown in Figure
3-2. Each rear panel feature is briefly described in Table 3-2.
Table 3-2. Rear Panel Features
A
Fan Filter
The filter covers the air intake to keep dust and debris out of chassis air
baffles. Fans inside the calibrator provide a constant cooling air flow
throughout the chassis. Circuitry inside the calibrator monitors correct
operation of the internal fans.
B
5725A AMPLIFIER Connector
Provides the analog and digital interface for the Fluke 5725A Amplifier.
After connecting the 5725A to the 5725A AMPLIFIER connector, you
control the 5725A from the calibrator’s front panel or by remote commands.
Refer to "Using an Auxiliary Amplifier" in Chapter 4 for details.
C
VARIABLE PHASE OUT BNC
Connector
Provides access to a variable-phase nominal 2.5V rms sine-wave signal,
intended for a 3 kΩ load. The phase of this signal can be adjusted using the
arrow keys and rotary knob (or by remote commands) to lead or lag the
main calibrator output signal by up to 180 degrees. The connector shell is
not connected directly to chassis ground. It is connected internally to the
OUTPUT LO binding post. The maximum allowable potential between the
connector shell and chassis ground is 20V peak. Refer to "Variable Phase
Output" in Chapter 4 for details.
D
PHASE LOCK IN BNC
Connector
Provides the input for an external signal onto which the calibrator can be
phase locked. (1 to 10V rms, 10 kΩ input impedance.) The connector shell
is not connected directly to chassis ground. It is connected internally to the
OUTPUT LO binding post. The maximum allowable potential between the
connector shell and chassis ground is 20V peak. Refer to "Phase Locking
to an External Signal," in Chapter 4 for details.
E
Rear Panel Binding Posts
The rear-panel OUTPUT, SENSE, and V GUARD and I GUARD binding
posts are alternative connections to the UUT. An internal cable enables
either the front or rear binding posts. The procedure to disable the front
panel binding posts and enable the rear panel binding posts involves
opening the cover of the calibrator and is described in Chapter 4 of the
5700A/5720A Series II Service Manual.
The I GUARD binding post provides an external connection point for the
internal current guard. The current guard is used when the calibrator is
supplying low-level ac current through a long cable to remove errors
introduced by leakage through the cable capacitance. The I GUARD
binding post is available on the rear panel where it is convenient for system
applications. Refer to "When to use the Current Guard" in Chapter 4 for
details.
AUX CURRENT OUTPUT is not available on the rear panel binding posts.