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dS2824

dS2824 User Manual v4.12

The dS2824 provides twentyfour (24) volt free contact relay outputs with a current rating of up

to 16Amp each, 8 flexible I/O's which can be analogue or digital and 1 serial port (3.3v level).

The module is powered from a 12vdc supply which can be regulated or unregulated. The relays

are SPCO (Single Pole Change Over) types. The normally open, normally closed and common

pins are all available on the screw terminals.

LED indication

The dS2824 provides a red LED mounted immediately next to each relay to indicate whether it

is in a powered state (LED on), there are also two LED's mounted in the Ethernet connector

which will flash with Ethernet traffic. A row of three LEDs, Blue, Green and Red, are available

for status indication. The Red LED lights when the module is in bootloader mode – this is when

the IDE is uploading system firmware to the module. The Green LED lights the board begins

running user programs. All three LEDs are available and can be controlled as digitalports 33-

35.

digitalport LedBlue 33

digitalport LedGreen 34

digitalport LedRed 35

The “FlashingLeds” example provides a colourful display showing how to use them.

There are also LEDs on the I/O lines. These indicate the I/O status in digital output and VFC in-

put modes only.

Power supply

The dS2824 requires a 12v DC supply capable of supplying a minimum of 1.5A. This is most

easily provided by a low cost mains adapter. A suitable universal adapter is available on our

website and may be ordered along with the modules. Connection is via the 2.1mm DC jack

socket. Positive on the center pin.

Operating temperature

-40C to +70C

Devantech dS2824 User Manual

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