User's Manual

Turbo PMAC2 VME Ultralite
18 Connector Pinouts
Pin # Symbol Function Description Notes
1 GND Common Reference Voltage
2 +5V Input Positive Supply Voltage Supplies all PMAC digital
circuits
This terminal block can be used to provide the input for the power supply for the circuits on the PMAC2
board when it is not in a bus configuration. When the PMAC2 is in a bus configuration, these supplies
come through the bus connector from the bus power supply automatically; in this case, this terminal block
should not be used.
TB2 (4-Pin Terminal Block)
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
This terminal block provides the output for PMAC2's watchdog timer relay, both normally open and
normally closed contacts.
Note: The "normally-closed" relay contact is open while PMAC2 is operating properly – it has power and
the watchdog timer is not tripped – and closed when the PMAC2 is not operating properly – either it has
lost power or the watchdog timer has tripped. The normally-open relay contact is closed while PMAC2 is
operating properly and open when PMAC2 is not operating properly.
MACRO Interface Connectors
Option A: Fiber Optic Transceiver
U4 Lower port: Transmit Optical Data
U4 Upper port: Receive Optical Data
Option C: RJ-45 Phone Jack Connectors
J14: Receive Data
J17: Transmit Data