CAEN
Electronic Instrumentation
UM2619 – N1419 User Manual
11
HV Status control section
Fig. 7: N1419 HV Status control panel
NAME:
TYPE:
SIGNAL:
FUNCTION:
ON
RED LED
HV On enabled (at least one channel ON)
ALARM
RED LED/ AMP 280371-2.
Out
Alarm status signalled (active LOW)
INTERLOCK
RED LED/ AMP 280371-2
In
Interlock signal
Alarm signal
Fig. 8: N1419 ALARM electrical scheme
As an Alarm condition is detected (see p. 31 and 33) pins 2 and 3 (- and +) are closed; the contact can be used to
switch an external device supplied by an external source, otherwise the VB and GND references can be used to
provide a TTL compatible level on pin 2 and 3.
In the first case (externally supplied device) the maximum allowed ratings are:
•
Maximum voltage b and -: 12V
•
Maximum sink current and -: 100mA
In the latter case, in order to produce a TTL compatible Alarm Out, pin 3 (+) must be connected with pin 4 (VB) and
pin 1 (GND) with pin 2 (-); see the diagram below:
Fig. 9: N1419 ALARM TTL configured
Interlock signal
Fig. 10: N1419 INTERLOCK electrical scheme
A schematic diagram of the Interlock input is shown in the figure above, where the diode is part of optocoupler
stage.
Interlock means that channels are hardware disabled. The interlock operation is explained by the following table:
Содержание N1419
Страница 1: ...CAEN Tools for Discovery Electronic Instrumentation Es UM2619 N1419 User Manual Rev 2 22 March 2013...
Страница 7: ...CAEN Electronic Instrumentation UM2619 N1419 User Manual 7 Fig 2 Backplane NIM connector...
Страница 9: ...CAEN Electronic Instrumentation UM2619 N1419 User Manual 9 Fig 4 Mod N1419 series back panel std A B...
