NTI ENTERPRISE ENVIRONMENT MONITORING SYSTEM
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LOCATING OIDS
To use SNMP (Simple Network Management Protocol) to monitor the sensors and control the functions of an ENVIROMUX
Enterprise Environment Monitoring System (SYSTEM), you first need to install SNMP network management software. The
software package will include an MIB (Management Information Base) browser and there are many different MIB browsers so we
will be very general about the instruction provided herein. The MIB browser can be used to quickly view sensor data and the
status of all characteristics of the SYSTEM. How you make use of that information is up to you.
General Information
Every piece of information available from the SYSTEM through the MIB browser has an OID (Object Identifier). The MIB file
provided with the SYSTEM (on the CD and available from http://www.networktechinc.com/download/
d-environment-monitor-
16.html) provides a database to organize information received regarding sensors, output relays, IP Devices, etc.. Each piece of
information derived from this database has a unique OID. To see the OID for any piece of information, select the variable and
the OID assigned to it will be displayed.
For this instruction we used the free MIB browser “iReasoning” found at http://ireasoning.com/mibbrowser.shtml
.
View OIDs
To view this information, you must do the following:
1. Install the browser to your PC
2. Copy the MIB file associated with your SYSTEM to the hard drive on your PC.(perhaps to a new directory “MIB files” as shown
below.)
3. Load the MIB file for the SYSTEM to your browser.
TIP: iReasoning provided a couple of default MIB files that were preloaded. To clean up the resulting data tree, we used
“UnLoad MIBs” (above) to remove those.
4. Enter the IP address of the SYSTEM so the browser knows where the SYSTEM is to retrieve data.
5. With the iReasoning browser, the Read-only Community Name (default is “public”) was automatically sensed and applied
when the IP address was entered, but if this doesn’t happen in your browser, make sure the “Read Community” field in the agent
properties includes the name “public” (or whatever you have changed it to in the ENVIROMUX-16D network configuration).
Select “Load MIBs” and locate the
MIB file on your PC.
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