User's Manual

Turbo PMAC2 PCI Ultralite HRM
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Connector PinOuts 11
TB1: Logic Power
Caution
This connector should not be used (connected) if the Turbo PMAC2
PCI Ultralite is installed in a PCI slot.
This terminal block can be used to provide the input power for the Turbo PMAC2 PCI Ultralite board for
standalone operation, when it is NOT in a bus (PCI) configuration.
When the Turbo PMAC2 PCI Ultralite is mounted in a PCI slot, this terminal block should NOT be used.
In this mode, the power is supplied automatically through the PCI connection.
Note
The TB1 connector is a 2-pin position in the standard configuration.
However, if the analog inputs option (J1) is populated, then it is a 4-
pin connector to allow for A/D converters power (±12VDC).
Pin #
Symbol
Function
Description
Notes
1
GND
Common
Reference Voltage
2
+5V
Input
Positive Supply Voltage
Supplies all PMAC digital circuits
3
+12V
Input
Positive Supply Voltage
+12V to +15V
4
-12V
Input
Negative Supply Voltage
-12V to -15V
Note
The ±12VDC power is only used for the A/D converters, it is not
necessary for powering-up PMAC.
TB2: Watchdog Relay
This terminal block provides the output for the watchdog timer relay, both normally open and normally
closed contacts. This is usually used to connect to logic circuitry to bring the machine to a safe stop in
case of a watchdog trip.
The normally-closed relay contact is closed while the Turbo PMAC2 PCI Ultralite is operating properly –
it has power and the watchdog timer is not tripped – and open when it is not operating properly – either it
has lost power or the watchdog timer has tripped.
The normally-open relay contact is open while the Turbo PMAC2 PCI Ultralite is operating properly, and
closed when it is not operating properly (watchdog tripped).
Pin #
Symbol
Function
Description
Notes
1
WD_NC
Output
Watchdog Relay Out
Normally closed
2
COM
Input
Watchdog Return
+V or 0V
3
WD_NO
Output
Watchdog Relay Out
Normally open
4
COM
Input
Watchdog Return
+V or 0V