Matrix-orbital LK162B-7T Manual de usuario descargar pdf (Pagina 14)

Command Summary 10

Alternate USB Header

Some advanced applications may prefer the straight four pin connection offered through the Optional

Alternate USB Header. This header offers power and communication access in a simple interface

package. The Optional Alternate USB Header may be added to the LK162B-7T-USB for an added charge

as part of a custom order. Please use the Contact section to request more information from the friendly

Matrix Orbital sales team.

4.3 Common Features

General Purpose Outputs

Figure 11: GPO Header

Table 8: GPO Pinout

Function

GPO 1

GND

GPO 2

GND

A unique feature of the LK162B-7T 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.

Alternate Power Connector

Figure 12: Alternate Power Connector

Table 7: Alternate Power Pinout

Function

Vcc

Gnd

The Alternate Power Connector provides the ability to power the LK162B-7T using a second cable. The

Tyco 171825-4 style header is particularly useful for connecting to an unmodified floppy power cable, a

171822-4 for example, from a PC power supply for a simple bench power solution.

*Note: To apply power via pin 4, move the 0 ohm resistor from R51 to R52. The R52 configuration is

better suited to applying 12V power to an extended voltage display.

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Matrix-orbital LK162B-7T Manual de usuario Pagina 14