PMAC2A PC104 Hardware Reference Manual

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

Base Board Connector Pinouts

49

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Image 55
Delta Tau PMAC2A-PC/104 manual Base Board Connector Pinouts, TB1 Jpwr Power Supply, J4 JRS232 Serial Port Connector