Technical information

Chapter 3:
How to Monitor a UPS
PowerNet MIB Reference Guide
12
How to Monitor a UPS
You use GETs (SNMP read commands) to PowerNet MIB OIDs to monitor (view information about)
the UPS.
Most PowerNet MIB categories have OIDs that you can use to view information about the operation
of the UPS. With few exceptions, these OIDs respond to GETs, but not to SETs: You can view (GET)
information about UPS operation, but you cannot affect (SET) that operation.
Not every PowerNet MIB OID responds to a GET with useful information. For example:
• A GET to any [upsControl] OID receives a response indicating that the UPS did not perform
the related control action.
• A GET to [upsAdvControlFlashAndBeep] receives a noFlashAndBeep (1) response.
• A GET to [upsAdvControlRebootUps] receives a noRebootUps (1) response.
[upsIdent] UPS Identification OIDs
The [upsIdent] category has five OIDs in two sub-categories, [upsBasicIdent] and [upsAdvIdent]
that report UPS identification parameter values. Four read-only OIDs report values pre-set at the
factory, and one OID reports the name used for the UPS, a name that you can define using a SET.
You can access all five OIDs through any Management Card or PowerNet Agent that connects to the
UPS through a smart-signalling cable. For a PowerNet Agent that connects to the UPS through a
simple-signalling cable, you can use only the two [upsBasicIdent] OIDs.
[upsBasicIdent]
OID Categories Information Reported
[upsIdent] The UPS identification parameters. See [upsIdent] UPS Identification OIDs.
[upsBattery] The UPS battery status. See [upsBattery] UPS Battery OIDs.
[upsComm] The UPS-to-SNMP agent communication link. See [upsComm] UPS
Communication OID.
[upsInput] The voltage input to the UPS. See [upsInput] UPS Input OIDs.
[upsOutput] The voltage output by the UPS. See [upsOutput] UPS Output OIDS.
OID Information Reported
upsBasicIdentModel The UPS model name.
upsBasicIdentName The 8-character name for the UPS. You can use a SET to change this value.