Output Command

Result

CBn

Vout = GNDiso

SBn

Vout = Viso

 

The resistor pack RPx3 is removed to provide open collector outputs. The same calculations for maximum source current and low level voltage applies as in the above circuit. The maximum sink current is determined by the NEC2505, and is approximately 2mA.

Open Collector

To DMC-1748 +5V

1/8 RPx2

DMC-1748 I/O

1/4 NEC2505

I/On

OUTCn

Electrical Specifications

I/O points, configurable as inputs or outputs in groups of 8

Digital Inputs

Maximum voltage: 28 VDC

Minimum input voltage: 4 VDC

Maximum input current: 3 mA

High Power Digital Outputs

Maximum external power supply voltage: 28 VDC

Minimum external power supply voltage: 4 VDC

Maximum source current, per output: 500mA

Maximum sink current: sinking circuit inoperative

Standard Digital Outputs

Maximum external power supply voltage: 28 VDC

Minimum external power supply voltage: 4 VDC

Maximum source current: limited by pull up resistor value

USER MANUAL

Appendices • 195

Page 195
Image 195
Galil DMC-13X8 user manual Electrical Specifications, Digital Inputs, High Power Digital Outputs, Standard Digital Outputs