Delta Tau PMAC2A-PC/104 manual J1 USB Communications Port, J10 Ethernet Communications Port

PMAC2A PC104 Hardware Reference Manual

Connectors and Indicators

J1 – USB Communications Port

This connector provides access to the USB communications feature ordered through Option-1A. See the Machine Connections section for details on using this port.

J2 - Thumbwheel Multiplexer Port (JTHW Port)

The Thumbwheel Multiplexer Port, or Multiplexer Port, on the JTHW connector has eight input lines and eight output lines. The output lines can be used to multiplex large numbers of inputs and outputs on the port, and Delta Tau provides accessory boards and software structures (special M-variable definitions) to capitalize on this feature. Up to 32 of the multiplexed I/O boards may be daisy-chained on the port, in any combination.

1.26-pin female flat cable connector T&B Ansley P/N 609-2641

2.Standard flat cable stranded 26-wire T&B Ansley P/N 171.26

3.Phoenix varioface module type FLKM 26 (male pins) P/N 22 81 05 0

J7 - General-Purpose Digital Inputs and Outputs (JOPT Port)

Acc-2P’s JOPT connector provides eight general-purpose digital inputs and eight general-purpose digital outputs. Each input and each output has its own corresponding ground pin in the opposite row. The 34- pin connector was designed for easy interface to OPTO-22 or equivalent optically isolated I/O modules. Delta Tau’s Acc-21F is a six-foot cable for this purpose.

1.34-pin female flat cable connector T&B Ansley P/N 609-3441

2.Standard flat cable stranded 34-wire T&B Ansley P/N 171-34

3.Phoenix varioface module type FLKM 34 (male pins) P/N 22 81 06 3

J8 – Handwheel/Pulse and Direction Port (JHW / PD Port)

This port provides an extra encoder input or a set of pulse and direction outputs and its function is selectable by jumpers.

1.10-pin female flat cable connector T&B Ansley P/N 609-1041

2.Standard flat cable stranded 10-wire T&B Ansley P/N 171-10

3.Phoenix varioface module type FLKM 10 (male pins) P/N 22 81 01 8

J10 – Ethernet Communications Port

This connector provides access to the Ethernet communications feature ordered through Option-1B. See the Machine Connections chapter for details on using this port.

TB1 – Power Supply Terminal Block (JPWR Connector)

In almost in all cases the PMAC2A PC/104 will be powered from the PC/104 bus when it is installed in a host computer’s bus, or from the JMACH1 connector. This terminal block may be used as an alternative power supply connector or to easily measure the voltages applied to the board.

1. 4-pin terminal block, 0.150 pitch

LED Indicators

D2: When this green LED is lit, it indicates that power is applied to the +5V input.

D6 – D7: These two LEDs monitor the operation of the Ethernet communications circuitry.

Acc-2P Hardware Reference Summary 39