Cannot obtain reading from temperature sensor

[Anonymous user]

Using a Network Management Card 2 with software version 6.4.0 and an AP9335T temperature sensor.

The NMC sees the sensor (Status -> Universal I/O -> Port 1 Temp 1) shows green and status normal, however there is no temperature reading.

As mentioned in another post, I tried disconnecting the sensor, rebooting the NMC, and reconnecting the sensor but still nothing.

I also tried diconnecting the sensor, *resetting* the NMC (Reset All, Exclude TCP/IP), and reconnecting the sensor but still nothing.

Am I doing something wrong?  Or, is the sensor/NMC bad?

[BillP]

Can you confirm under About->Network what the NMC model number reports as? And is it installed in a Symmetra UPS?

I thought of this item: http://www.apc.com/us/en/faqs/FA318542 which based on what you described is likely it based on your description of what you're seeing in the UI.

The solution will be to upgrade the firmware.

[Anonymous user]

The NMC model number is 0M-9631SY and, no, it is not a Symmetra unit.  It's a SmartUPS 1400XL.

Anyway, I just finished a software update to 6.5.6 and it seems to be working correctly now - reading 26.5 deg C.

[BillP · Accepted solution]

Glad it is working with the firmware upgrade.

And it must have been from a Symmetra at some point though since the model is 0M-9631SY as I suspected. This is the part number used for AP9631 bundled into a Symmetra single phase UPS.