Internal wiring, 8 slot dewe-motherboard – Atec Dewetron-3010 User Manual

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DE-M0365E • DEWE-3010 • Technical Reference Manual • Printing version 2.0.5 • October 18, 2004

Internal Wiring

8 slot DEWE-MOTHERBOARD

Internal Wiring

Front view (connectors for DAQ-modules)

Supply voltages, RS-485 connection

1 +12 V (supply voltage)

2 GND (system ground)

3 GND (referenced ground)

4 -12 V (supply voltage)

5 +Vcc (sensor supply, normally +12 V,

leads to DAQ-module pin 6)

6 -Vcc (normally not connected, leads

to DAQ-module pin 8)

7 A (RS-485)

8 B (RS-485)

RS-232 connection

G GND

T Transmit

R Receive

G GND

Baud rate for onboard

RS-232/485 converter

1 115000

2 57600

3 38400

4 19200

5 9600

6 4800

7 2400

I/O connectors

Ixx: Analog input xx (leads to

DAQ-modul pin 1 in slot xx)

Oxx: Analog output xx (leads to

DAQ-modul pin 7 in slot xx)

G: GND (reference for A/D card)

68-pin high-density sub-D connector

Rear view

Interface pin assignment:

1 Module input (±5 V)

2 RS-485 (A)

3 RS-485 (B)

4 GND

5 +9 V power supply

6 +12 V power / sensor supply

7 Module output (from A/D board)

8 reserved

9 -9 V power supply

9-pin SUB-D connector

The 8 slot DEWE-MOTHERBOARD receives the ±12 V

power supply via a DC/DC converter from the

internal power supply.