PMAC2A PC104 Hardware Reference Manual

ACC-2P 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.

J1 (USB) Universal Serial Bus Port (Optional)

Pin #

Symbol

Function

1

VCC

N.C.

2

D-

DATA-

3

D+

DATA+

4

GND

GND

5

SHELL

SHIELD

6

SHELL

SHIELD

This connector is to be used in conjunction with USB A-B cable, which can be purchased from any local computer store and it is provided when Acc-2P Option 1A is ordered. The A connector is connected to a PC or Hub device; the B connector plugs into this port.

Acc-2P Connector Pinouts

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Delta Tau PMAC2A-PC/104 manual ACC-2P Connector Pinouts, J1 USB Universal Serial Bus Port Optional, Pin # Symbol Function