Teledyne LeCroy CPCI64 - Manual (Page 7)

7
As you can see, there will be conflict in case the external supply is connected while the jumper is still in
place. This circuit is repeated for each of the 4 voltages, with the exception of the Auxiliary circuit.
If you are using external power supplies do not forget to connect the Ground (GND) signals between the
system and the supply. If your external power supply outputs are not isolated, make sure the ground of the
PC (containing the extender board) and the ground of the power supply are at the same voltage phase/level
with respect to a common point, before connecting the GND signal.
If making current measurements on +5V, be sure to remove JP10 if the VIO and
+5V on your board are on the same voltage plane.
JUMPERS TABLE
Description Jumper Utilization
External power input J5 Inputs from external power supply
Current measurement J3 Outputs to DVM
-12V isolation from the system JP4 On = voltage from system, Off = from Ext. supply
+12V isolation from the system JP6 On = voltage from system, Off = from Ext. supply
+5V isolation from the system JP5 On = voltage from system, Off = from Ext. supply
+VIO connection to the system
through the extender JP10 On = VIO from the system
Off = from UUT plane
If this jumper is removed the UUT VIO signals must be
connected to the main voltage plane.
3V Ù 5V translation JP3 Off = 3V translated, On = bus signals up to 5V
3.3V source JP7 On-board = Between 1 & 2
From system = 2 & 3
Square pad on the 3 pin jumper is pin 1
+5V current limit to 1 Amp JP8 (PCIAX)
JP2 (CPCI) On = 1A, Off = 5A
On = 1A, Off = 5A
Remote On-Off CPCI
PCIAX
JPX (CPCI)
J6 (PCIAX) On < 1.5V at the bottom terminal (pin 2)
Shunt on SW, control On-Off by switch.
Shunt on DB0, control On-Off by bit 0 of
parallel port. On DB1 by bit 1 of parallel
port DB6 by bit 6. See ON-OFF
under the operation section.