Sony MP595 Manual

A SERVICE OF

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Configuring the MP Modem to Report GPS and I/O

Data

Rev 1.5 Jul.08 55

Adigitalinputcanbeconnectedtofourofthepinsonthe

DB15HDconnector:Pins3,4,11,and12.(Pins3and11could

alternativelybeusedfordigitaloutput.)

Note: Before using the input/output lines, you must configure them as

inputs or outputs.

Typicallyadigitalinputdeviceshouldbeconnectedbetween

Ground(Pin10)andtheinpu tport(Pin3,4,11,or12).

Figure 7-2: A button wired to Pin 4 (digital input) and Pin 10 (Ground).

Thepinsreportalogichighonaninputof3.45VDC.An

internalpull‐upresistorprovidesahighconditionwhenthe

switchisopen.

Thedigitalinputpinsreportalogiclowonaninputbetween

0

VDCand0.8VDC.Sinkingtheinputpintogroundyieldsa

logiclow(0x00)whentheportispolled.

IfyouconfiguretheMPmodemtosenddatatoanetwork

server,digitalinputdatacanberemotelymonitored.

Example: panic button connections

AnI/Ocableforapanicbuttonrequiresawiretooneofthe

digitalinputorI/Opins(suchas#3)andonewiretothe

Groundpin(#10).