[Nut-upsuser] Input Voltage Not Shown - RS900 - Web Interface

[Bob Blackwell]

I've just upgraded from r1865 to r2103. After doing so Input voltage for an APC 
RS900 no longer appears on the web tools graph. Instead of seeing a bar 
indicating Input Voltage the words "Not Supported" appears. Why does the graph 
no longer report Input Voltage when selecting "All Data" does;

Back-UPS RS 900
battery.charge     :     47
battery.charge.low     :     10
battery.charge.warning     :     50
battery.date     :     2001/09/25
battery.mfr.date     :     2008/06/05
battery.runtime     :     1331
battery.runtime.low     :     120
battery.temperature     :     29.2
battery.type     :     PbAc
battery.voltage     :     23.8
battery.voltage.nominal     :     24.0
device.mfr     :     American Power Conversion
device.model     :     Back-UPS RS 900
device.serial     :     5B0743U08220
device.type     :     ups
driver.name     :     usbhid-ups
driver.parameter.pollfreq     :     30
driver.parameter.pollinterval     :     2
driver.parameter.port     :     AUTO
driver.version     :     2.5_r2103
driver.version.data     :     APC HID 0.95
driver.version.internal     :     0.34
input.sensitivity     :     medium
input.voltage.nominal     :     120
output.voltage     :     120.0
output.voltage.nominal     :     120.0
ups.beeper.status     :     muted
ups.delay.shutdown     :     20
ups.firmware     :     9.o2 .D
ups.firmware.aux     :     o2
ups.load     :     16.0
ups.mfr     :     American Power Conversion
ups.mfr.date     :     2007/10/24
ups.model     :     Back-UPS RS 900
ups.productid     :     0002
ups.serial     :     5B0743U08220
ups.status     :     OL DISCHRG
ups.test.result     :     In progress
ups.timer.reboot     :     0
ups.timer.shutdown     :     -1
ups.vendorid     :     051d