H4531-MIB

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Description: H4531-MIB module

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What Is H4531-MIB?

H4531-MIB is a vendor MIB for the COMET SYSTEM H4531 environmental monitoring unit, a device (branded 'comet' in the MIB tree) used to monitor ambient conditions such as temperature alongside digital inputs and relay outputs in equipment rooms, telecom cabinets, or other unattended sites. It exposes a temperature reading along with configurable low/high alarm thresholds, sample timing, and hysteresis, two relay outputs with associated alarm status, and multiple digital input channels. This is a hardware environmental-monitoring MIB in the purest sense: it is used to watch a facility's actual temperature and trigger an alarm when it exceeds or falls below configured thresholds, and to monitor the status of relay-driven alarm outputs (e.g. tied to a door contact, cooling fan, or external sensor) and general-purpose digital inputs. It is a standalone, self-contained vendor MIB with no apparent dependency on other MIBs. It is typically deployed in server rooms, telecom huts, and remote cabinets as a low-cost dedicated environmental/temperature sensor with SNMP alarm reporting. Engineers can download the H4531-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in H4531-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

COMET SYSTEM H4531 environmental monitoring unit

Monitoring Examples

An administrator would poll the temperature object continuously and compare it against tempLow and tempHigh to detect an over-temperature or under-temperature condition in a server room or cabinet, with tempHyst preventing alarm flapping near the threshold and tempTime indicating sample recency. relay1Alarm and relay2Alarm would be checked to see if either relay (relay1, relay2) has been triggered, for example by an external door or smoke sensor wired into the unit, while input1, input2, and input3 report the raw state of connected digital sensors such as door contacts or leak detectors. A sustained high temperature reading combined with a relay1Alarm being set would indicate a cooling failure requiring immediate attention.

What Can Be Monitored

ambient temperature
temperature alarm thresholds (low/high)
relay output alarm status
digital input states
temperature sample timing/hysteresis

Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

enterprises

How to Use in IPNetwork Monitor

Example using relay1 OID:

Select a Comet System H4531 environmental monitoring unit as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type relay1 into the Find box to locate it in the OID tree, then select it and click OK. It reports the relay 1 status. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is an INTEGER-type OID, Value bounds is the most useful condition here — trigger an alert if the value drifts significantly from its normal baseline, since an unexpected change often points to a real underlying issue. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
comet	1.3.6.1.4.1.22626
products	1.3.6.1.4.1.22626.1
h4531	1.3.6.1.4.1.22626.1.2
readings	1.3.6.1.4.1.22626.1.2.1
STR temperature	1.3.6.1.4.1.22626.1.2.1.1	DisplayString	read-only	Temperature
INT relay1Ex	1.3.6.1.4.1.22626.1.2.1.5	INTEGER	read-only	Relay 1 status
INT relay2	1.3.6.1.4.1.22626.1.2.1.6	INTEGER	read-only	Relay 2 status
INT input1	1.3.6.1.4.1.22626.1.2.1.7	INTEGER	read-only	Binary Input 1
INT input2	1.3.6.1.4.1.22626.1.2.1.8	INTEGER	read-only	Binary Input 2
INT input3	1.3.6.1.4.1.22626.1.2.1.9	INTEGER	read-only	Binary Input 3
settings	1.3.6.1.4.1.22626.1.2.2
STR tempLow	1.3.6.1.4.1.22626.1.2.2.1	DisplayString	read-only	Temperature Limit Low
STR tempHigh	1.3.6.1.4.1.22626.1.2.2.2	DisplayString	read-only	Temperature Limit High
INT tempTime	1.3.6.1.4.1.22626.1.2.2.7	INTEGER	read-only	Temperature alaram delay
STR tempHyst	1.3.6.1.4.1.22626.1.2.2.10	DisplayString	read-only	Temperature hysteresis
STR relay1Alarm	1.3.6.1.4.1.22626.1.2.2.17	DisplayString	read-only	Relay 1 alarm
STR relay2Alarm	1.3.6.1.4.1.22626.1.2.2.18	DisplayString	read-only	Relay 2 alarm
STR relay1Hyst	1.3.6.1.4.1.22626.1.2.2.19	DisplayString	read-only	Relay 1 hysteresis
STR relay2Hyst	1.3.6.1.4.1.22626.1.2.2.20	DisplayString	read-only	Relay 2 hysteresis
INT relay1Time	1.3.6.1.4.1.22626.1.2.2.21	INTEGER	read-only	Relay 1 alaram delay
INT relay2Time	1.3.6.1.4.1.22626.1.2.2.22	INTEGER	read-only	Relay 2 alaram delay
INT input1Time	1.3.6.1.4.1.22626.1.2.2.23	INTEGER	read-only	Binary Input 1 alaram delay
INT input2Time	1.3.6.1.4.1.22626.1.2.2.24	INTEGER	read-only	Binary Input 2 alaram delay
INT input3Time	1.3.6.1.4.1.22626.1.2.2.25	INTEGER	read-only	Binary Input 3 alaram delay
readingsint	1.3.6.1.4.1.22626.1.2.3
INT temperaturei	1.3.6.1.4.1.22626.1.2.3.1	INTEGER	read-only	Temperature *10
settingsint	1.3.6.1.4.1.22626.1.2.4
INT tempLowi	1.3.6.1.4.1.22626.1.2.4.1	INTEGER	read-write	Temperature Limit Low *10
INT tempHighi	1.3.6.1.4.1.22626.1.2.4.2	INTEGER	read-write	Temperature Limit High *10
INT tempTimei	1.3.6.1.4.1.22626.1.2.4.7	INTEGER	read-write	Temperature alaram delay
INT tempHysti	1.3.6.1.4.1.22626.1.2.4.10	INTEGER	read-write	Temperature hysteresis *10
INT input1Timei	1.3.6.1.4.1.22626.1.2.4.17	INTEGER	read-write	Binary Input 1 alaram delay
INT input2Timei	1.3.6.1.4.1.22626.1.2.4.18	INTEGER	read-write	Binary Input 2 alaram delay
INT input3Timei	1.3.6.1.4.1.22626.1.2.4.19	INTEGER	read-write	Binary Input 3 alaram delay
traps	1.3.6.1.4.1.22626.1.2.5
STR messageString	1.3.6.1.4.1.22626.1.2.5.1	DisplayString	read-only	Message giving more detailed information on alarms.
INT alarmTemperature	1.3.6.1.4.1.22626.1.2.5.2	INTEGER	read-only	Temperature alarm 0 = Temperature OK 1 = Temperature too high 2 = Temperature too low
tables	1.3.6.1.4.1.22626.1.2.6
historyTable	1.3.6.1.4.1.22626.1.2.6.1		not-accessible	Table of the history values.
historyEntry	1.3.6.1.4.1.22626.1.2.6.1.1		not-accessible	History values entries.
INT histTemperature	1.3.6.1.4.1.22626.1.2.6.1.1.1	INTEGER	read-only	Temperature reading.
INT histRelay1	1.3.6.1.4.1.22626.1.2.6.1.1.5	INTEGER	read-only	Relay 1 reading.
INT histRelay2	1.3.6.1.4.1.22626.1.2.6.1.1.6	INTEGER	read-only	Relay 2 reading.
INT histInput1	1.3.6.1.4.1.22626.1.2.6.1.1.7	INTEGER	read-only	Binary Input 1 reading.
INT histInput2	1.3.6.1.4.1.22626.1.2.6.1.1.8	INTEGER	read-only	Binary Input 2 reading.
INT histInput3	1.3.6.1.4.1.22626.1.2.6.1.1.9	INTEGER	read-only	Binary Input 3 reading.

RFC description

Environmental sensor device (Comet H4531) monitoring temperature, relay status, and digital inputs.

Start monitoring Comet System H4531 environmental monitoring unit with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

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