Matrix-orbital LK404-25 Manual do Utilizador descarregar pdf (Página 13)

4.2 Common Features

General Purpose Outputs

Figure 9: GPO Header

Table 6: GPO Pinout

Function

GPO 1

Gnd

GPO 2

Gnd

GPO 3

Gnd

GPO 4

Gnd

GPO 5

Gnd

GPO 6

Gnd

Vcc

Gnd

A unique feature of the LK404-25 is the ability to control relays* and other external devices using either

one or six General Purpose Outputs. Each can source up to 10mA of current at five volts when on or sink

20mA at zero volts when off. The two row, fourteen pin header can be interfaced to a number of female

connectors to provide control to any peripheral devices required.

*Note: If connecting a relay, be sure that it is fully clamped using a diode and capacitor in order to absorb any

electro-motive force (EMF) which will be generated.

Dallas One-Wire Connector

Figure 10: Dallas One-Wire Connector

Table 7: Dallas One-Wire Pinout

Function

Vcc

Gnd

In addition to the six general purpose outputs the LK404-25 offers an Optional Dallas One-Wire bridge,

to allow for an additional thirty two one-wire devices to be connected to the display. This header can be

populated with a Tyco 173979 connector at an added cost by custom order only. Please use the Contact

section to request more information from the Matrix Orbital sales team.

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Matrix-orbital LK404-25 Manual do Utilizador Página 13