Teledyne LeCroy PMC2PCI-64 - Manual (Page 7)

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PMC BUS MODE SIGNALS
The 4 bus mode signals for the PMC bus are selectable on the PMC2PCI-64 extender board. These signals
BUSMODE1, BUSMODE2, BUSMODE3 and BUSMODE4 are connected to 3 push-on jumpers JPN2, JPN3
and JPN4 respectively. These jumpers are pulled up to VCC with a 10K resistor each. If the jumper is not in
place the signal will go HI, and if the jumper is in place the signal will be grounded and represents a LOW.
BUSMODE1 is an output signal, represented by an LED which indicates when this output is low, asserted.
When the PMC card asserts this output the LED will illuminate.
For the PMC2PCI-64, the signals PRSNT1# and PRSNT2# on the PCI bus side of the extender board,
are hard wired to represent 25 Watts of power requirement, PRSNT1# = GND and PRSNT2# = OPEN.
EXTERNAL POWER SUPPLY
On the PCI532/332 the terminal VINEX is used and J6 terminal is used on other cards for the external power
supply input. However remember never to connect any supply to these inputs so long as you have JP4, JP5,
JP6 and JP7 installed.
In case you want to use the external supply as an input you must remove these 4 jumpers in order not to cause
any conflict with the bus voltages. These jumpers are, however, independent from each other.
For instance if you would want to bring in only a +5V from the external supply and continue to use the bus
voltages for +12V, -12V, and +3.3V, you would only need to remove JP6. The list below identifies which
jumper is for which supply:
JP4 = +12V, Next to Q5 pin 3 (left side of the board).
JP5 = -12V, Next to Q7 pin 3 (left side of the board).
JP6 = +5V, Next to Q6 pin 3, also JP10 for +VIO, if connected to +5V on your board.
JP7 = +3.3V, Next to Q9 pin 3.