P R E L I M I N A R Y
Document type:
Title:
Revision date:
Revision:
User's Manual (MUT)
N1471 4 Channel Programmable HV Power Supply
24/03/2010
1
NPO:
Filename:
Number of pages:
Page:
00112/07:N1471.MUTx/01 N1471_REV1.DOC
38
29
o
by connecting a RS485 controller to the first module’s COMM IN port
o
by connecting a RS485 controller to the last module’s COMM OUT port
Communication with the chained modules is achieved only through the USB - RS485
Communication Protocol, see § 3.5.
3.4.1.4. Ethernet communication
Fig. 3.31: Ethernet communication diagram
It is possible to communicate via Ethernet with one or more daisy chained N1471
modules through the NIM8301 Fan Unit
6
. Communication via Ethernet is possible only
through the USB - RS485 Communication Protocol. The single module or the first module
of the daisy chain must be connected to the Fan Unit RS232 port through the cable
adapter (see figure below) connected to the N1471 COMM IN port; SW[200, 201] switch
placed on the Microcontroller board inside the module must be set to Adaptation ON (see
§ 4.2.2).
Fig. 3.32: RS232 port cable adapter
6
The CAEN Mod. NIM8301 is a 7U (5+2) full size NIM crate (19”-12 slot) available with pluggable 300W and
600W power supplies, ventilated by pluggable 2U fan unit. Remote control and monitoring take place through
CAN bus, Ethernet, USB and RS232 interfaces.
