User’s Manual
4.2.16 Digital Input/Output
Digital Input allows user to log external device (such as industrial cooler) dead or alive or something else. System will log a
user customized message into system log and syslog, and issue SNMP trap or issue an alarm E-mail.
Digital Output allows user to monitor the switch port and power, and let system issue a high or low signal to an external device
(such as alarm) when the monitor port or power has failed. The Configuration screen in Figure 4-2-18 appears.
Figure 4-2-18 Windows File Selection Menu Popup
The page includes the following fields:
Object Description
• Enable
Check the Enable checkbox to enable Digital Input / output function.
Uncheck the Enable checkbox to disable Digital input / output function.
• Condition
As Digital Input:
Allows user to select High to Low or Low to High. This means a signal received
by system is from High to Low or From Low to High. It will trigger an action that
logs a customize message or issue the message from the switch.
As Digital Output:
Allows user to select High to Low or Low to High. This means
that when the
switch is power-failed or port-failed, then system will issue a High or
Low signal to an external device such as an alarm.
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