Delta Tau PMAC2A-PC/104 - Manual (Page 55)

PMAC2A PC104 Hardware Reference Manual
Base Board Connector Pinouts 49
BASE BOARD CONNECTOR PINOUTS
TB1 (JPWR): Power Supply
(4-Pin Terminal Block)
Top View
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 Ref to digital GND
4 -12V Input Negative Supply Voltage Ref to Digital GND
This terminal block can be used to provide the input for the power supply for the circuits on the PMAC board
when it is not in a bus configuration. When the PMAC is in a bus configuration, these supplies automatically
come through the bus connector from the bus power supply; in this case, this terminal block should not be used.
J4 (JRS232) Serial Port Connector
(10-Pin Connector)
Front View
Pin# Symbol Function Description Notes
1 PHASE Output Phasing Clock
2 DTR Bidirect Data Terminal Ready Tied to "DSR"
3 TXD/ Input Receive Data Host transmit data
4 CTS Input Clear to Send Host ready bit
5 RXD/ Output Send Data Host receive data
6 RTS Output Request to Send PMAC ready bit
7 DSR Bidirect Data Set Ready Tied to "DTR"
8 SERVO Output Servo Clock
9 GND Common PMAC Common
10 +5V Output +5Vdc Supply Power supply out