Omega Vehicle Security OMB-NETSCAN 1500 Manual do Utilizador descarregar pdf (Página 224)

Configuration Aspects for Programmers Appendix C

C-28 NetScan User’s Manual

Digital I/O Operation

As shown in the DB50 pinout in the Installation and Configuration section, the NetScan has digital I/O pins for

eight inputs and thirty-two outputs (see note). The digital outputs can be controlled either automatically via the

alarm settings or with programming using the Set Digital Outputs (

) command. To determine the digital

output state, use the

command.

With the Set Digital Outputs (

) command you can output a byte for each output bank and specify which output

bits should be cleared (logic false) or set (logic true). The

command will override the digital output states as

set by the alarm condition. Refer to the Command Reference section of this manual for details.

Each digital output line will drive five (5) standard TTL loads. Each digital input line is one-eighth (0.125) TTL

load. All inputs are protected against damage from high static voltages. Normal precautions should be taken to

limit the input voltages to 0.3 to 5.3 volts. All digital I/O lines are referenced to digital ground.

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