Sierra Wireless MP 880W Guía de usuario Pagina 66

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 92
  • Tabla de contenidos
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 65
MP880W Modem User Guide
60 2130795
Digital output devices
Digitaloutputdevicesarethosethathaveonlytwostatesand
thestateiscontrolledbyasignalfromtheMPmodem.Any
devicethatistobeswitchedonandofffrom3GWatcher
wouldbeinstalledasadigitaloutputdevice.
Adigitaloutputcanbeconnectedtotwoofthepinsonthe
DB15HDconnector:Pins3and11.(Thesecanbeusedfor
eitherinputoroutput.)
Note: Before using the input/output lines, you must configure them as
inputs or outputs.
Typicallyadigitaloutputdeviceshouldbeconnectedbetween
Ground(pin10)andtheoutputport(Pin3or11).
Figure 6-3: Wiring for using Pin 3 (digital output) as an electronic switch. Pin
10 is Ground.
ThedigitalI/Oportsprovideopencollectoroutputtoa
maximumof500
mA.
Analog input devices
Analoginputdevicesarethosethatgenerateasignalof
varyingvoltage,basedonthe stateofaninstrumentorgauge.
Anexampleofananaloginputdevicemightbeasensortha t
detectsthevehiclesspeed.
Ananaloginputcanbeconnectedtofourofthepinsonthe
DB15HDconnector:Pins7,8,14,and15.
Vista de pagina 65
1 2 ... 61 62 63 64 65 66 67 68 69 70 71 ... 91 92

Comentarios a estos manuales

Sin comentarios