27/09/2002
V560 User Manual
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3.7. MODULE CONFIGURATION
The module is supplied by CAEN with the internal jumpers as shown in Figure 2.2. In this
arrangement each section is configured with two independent 32bit counting scales
At power-on:
•
all the scales are cleared;
•
VME VETO is cleared;
•
VME interrupt is disabled.
3.8. V560 POWER SELECTION
The model V560 can be used in the standard VME crates or in the CERN VMEbus crates type V430
[2].
The module needs -5.2 V power for the ECL input stages; a jumper (JP2) is used to select the crate
type:
Standard crates:
The - 5.2 V power is generated on board from the standard voltage -12V provided on the VME
backplane.
JP2 must be located in the "- 5 EXT" position.
CERN VMEbus crate Type V430:
The - 5.2 V power is provided from a not VME standard voltage bus located on the backplane
of the crate type V430.
This backplane (VMEbus BIN type V431, see [2] § 2 ) is a monolithic printed circuit board that
provides the VMEbus standard J1 and J2 dataway and a third dataway (named "Jaux") which
is not foreseen by the VME standard.
The Jaux dataway provides some signals, the -5.2 V and -2 V requested by fast ECL logic
front end modules and the +15 V and -15 V rails. This dataway is situated in the free space
available between J1 and J2.
JP2 must be located in the "- 5 INT " position.
