MRV Communications LX-4000 Series Technical Information PDF herunterladen (Seite 306)

100

101

11-16 Guidelines for Creating or Modifying Actions

LX Series Configuration Guide

X To configure a temperature onboard trigger

Execute the onboard temperature command in the

Configuration Command Mode. Use this command to change

the LX onboard temperature low and high thresholds and,

optionally, the hysteresis:

1. Execute the onboard temperature command to specify

the high and low temperature thresholds:

ELXLX Config:0 >>onboard temperature low threshold 34

high threshold 40 hysteresis 4

The temperature thresholds are in Degrees Celsius. The

low threshold limit is -10° Celsius. The high threshold limit

is 75° Celsius. The hysteresis range is from 0 to 5° Celsius.

2. Execute the temperature onboard command in the

Trigger-Name Mode to configure a Trigger-Action trigger

based on the temperature exceeding (for example) the

onboard temperature threshold:

Example Trigger_Onboard_high:0 >>temperature onboard > high

threshold

In this example, the temperature condition is true when

the internal temperature reading is greater than 40

degrees Celsius.

The hysteresis is a range that exists preceding and below the

actual threshold setting. After a threshold is crossed, any

readings within the hysteresis range are not considered a

crossing of the threshold until a measurement outside the

hysteresis has been taken. You should only configure the

hysteresis to prevent “sporadic” or “spike” temperature levels

from producing inappropriate firings of the Rule associated

with this Trigger.

Temperature

OnBoard

Trigger is

used to initiate

an Action in

response to

an LX internal

temperature

threshold.

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