Netguardian M16 G2 Isolated Voltage Monitor - DPS Telecom NetGuardian V16 G2 User Manual

5.2.1

NetGuardian M16 G2 Isolated Voltage Monitor

The Isolated Voltage Monitor is an optional feature that allows you to monitor the voltage of the unit while being
separate from GND. This is Isolated Bonding Network (IBN) standard.
If you have ordered this option to be included on your NetGuardian M16 G2, you will only get an analog reading
from Power Input B when viewing the web interface of your unit. For calibration and other information regarding
this feature, see the sections below.
Calibration:
While your Isolated Voltage Monitor will be calibrated before leaving the factory, it might be necessary to do
further calibrations once the device is deployed. To calibrate your unit, follow the steps below:
· Establish a TTY interface connection with the unit you wish to calibrate.
· Once logged in, enter 'C' for config.
· Enter 'H'.
o NOTE: 'H' is a hidden option. It will not be present in the list of available options.
· Enter 'C' for calibrate.
· Using a multimeter, take a reading from the Power B input of the device.
· Enter the voltage reading from the multimeter in the TTY interface and press 'Enter'.
· To verify that the calibration has taken affect, you can view Power Input B voltage in the Monitor > Analogs
page of the device's web browser interface.
View Enabled/Disabled Calibration Feature Status:
When your device arrives from the factory, the Isolated Voltage Monitor Calibration feature should be
automatically enabled. To double-check that it is enabled, use the following steps:
· Establish a TTY interface connection with the desired unit.
· Enter 'S' for stats.
· There will be a line item for 'IVM VDC adjust: Enabled' if the device has the calibration feature enabled.
Otherwise, this line item will not be visible.
Enabling the Isolated Voltage Monitoring Calibration Feature:
If for some reason the Isolated Voltage Monitor Feature is disabled, use the following steps to enable it before
calibration:
· Establish a TTY interface connection with the unit you wish to calibrate.
· Once logged in, enter 'C' for config.
· Enter 'H'.
o NOTE: 'H' is a hidden option. It will not be present in the list of available options.
· Enter 'E' for enable.
· Enter 'Y' to confirm you wish to enable the calibration feature.
· Once enabled, you may calibrate the voltage reading if necessary.
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