CAEN
Electronic
Instrumentation
DT54xx
USB
High
Voltage
Power
Supply
8
contact
open
INTERLOCK
voltage
level
(0÷1V,
~5mA
current)
between
pin
2
and
pin
3
INTERLOCK
short
circuit
pin
1
with
pin
2,
and
pin
3
with
pin
4
ENABLED
voltage
level
(4÷6V,
~5mA
current)
between
pin
2
and
pin
3
ENABLED
The
front
panel
Interlock
LED
is
ON
when
the
INTERLOCK
is
active;
as
INTERLOCK
is
active,
channels
are
turned
off
at
the
fastest
available
rate,
regardless
the
RAMP
DOWN
setting.
USB
Port
Fig.
7:
USB
Optical
Connector
B
TYPE
USB
port
USB2.0
compliant
(200cm
max
cable
length)
Status
LEDs
Fig.
8:
LC
Optical
Connector
ON
GREEN
LED
lights
up
when
the
channel
is
active
OVC
RED
LED
lights
up
when
channel
draws
a
current
larger
than
Iset
(OVC
detected)
POL
RED/YELLOW
LED
(always
ON)
lights
up
RED
(positive
channel)
or
YELLOW
(negative
channel)
HV
enable
Fig.
9:
Channel
enable
Lockable
Toggle
Switch:
locks
into
selected
position
by
pulling
actuator,
prevents
accidental
switching
Channel
Enable
and
Disable
If
“disabled”,
the
channel
is
turned
off
with
the
fastest
available
rate
(no
Ramp)
HV
Max
Fig.
10:
HVmax
trimmer
Trimmer
Hardware
VMax
setting
