Datasheet

Real time clock
The Keysight N6705 DC power analyzer
has a built-in battery backed real time
clock. This allows for proper time-
stamping of logged data. It is also used to
tag files with correct creation dates.
Front panel USB
The Keysight N6705 DC power analyzer
provides a convenient front panel USB
port designed exclusively for data storage
devices, such as USB memory devices or
USB hard drives. On devices connected to
this USB port, you can save test setups,
test results, and screen images. It is also an
easy way to move test setup files between
two N6705 DC power analyzers or test
results between the DC power analyzer and
a PC. You can also log data directly to the
USB device plugged into the front panel.
This extends the total storage capability of
the N6705.
Internal memory
The Keysight N6705 DC power analyzer
has 4 gigabytes of non-volatile storage.
This storage is shared between the four
DC outputs. It can be used for saving test
setups, test results, and screen images.
External USB storage is supported for
increased storage capacity to log data
longer.
Emergency stop
Should a hazardous situation occur
during testing, you can press the large
red emergency stop button on the front
panel of the Keysight N6705. Pressing this
easy-to-find button immediately removes
power from the DC outputs. However, any
data collection (such as a scope trace or
data log) that is running at the time will
continue to run. By doing so, the data you
were collecting is saved and you will get a
record of what was happening at the time
of the event that caused you to press the
emergency stop button. The measure-
ments could aid in failure analysis, repair,
or debugging of the DUT.
Figure 11. The N6705’s front panel USB port.
Figure 12. The emergency stop button
shuts down all outputs immediately.
DUT protection features
Each Keysight N6705 DC power module
is protected against over-voltage, over-
current, and over-temperature. A fault
condition in one module can be detected
within 10 microseconds by other modules
so that they can be quickly shut down to
avoid hazardous conditions on your DUT.
Output disconnect and polarity
reversal relays
Modules in the Keysight N6705 can be
individually ordered with optional Output
Disconnect Relays (option 761) or Output
Disconnect/Polarity Reversal Relays
(option 760). See table on page 21 for
option 760 and 761 availability. All relays
are built into the module, so no additional
wiring is needed to incorporate the relay
function.
Although the plus and minus rail of the
output power mesh are physically discon-
nected from the output terminals with
options 760 and 761, a small AC network
is still connected across the plus and
minus output terminals. This AC network
is required for EMI compliance.
With option 761, Output Disconnect
Relays, an emergency condition or turning
the DC output off causes mechanical
relays disconnect both the plus and minus
side of the power supply, including the
sense leads.
With option 760, Output Disconnect/Po-
larity Reversal Relays, mechanical relays
switch the leads on both the plus and the
minus side of the power supply, including
the sense leads, resulting in a voltage
polarity reversal at the DUT. In addition
to polarity reversal, option 760 provides
the same output disconnect function as
option 761.
Note: Output current is limited on some
modules when option 760 Output Discon-
nect/Polarity Reversal Relays is installed.
See the “Available options” tables on page
21 for more information about maximum
current limitations with option 760.
11 | Keysight | N6700 Modular Power System Family - Data Sheet