Dry contact alarm (3g+ rm only) – Thinklogical SDIXtreme 3G and 3G+ Manual User Manual
Page 10
Revision E
10
July 2012
Dry Contact Alarm (3G+ RM Only)
There are dry contact alarms located on each module in the 3G+ Rack Mount units. When there is
an alarm condition, such as an over temperature condition or an issue with a power supply or fan,
the relay is energized.
Figure 3: Dry Contact Alarm
The dry contact alarm is a Form C contact with the following ratings:
•
Nominal switching capacity- 1A, 30VDC, 0.3A 125VAX (resistive load)
•
Max. switching power- 30W (DC), 37.5VA (AC) (resistive load)
If there are no current alarm conditions the front panel should read as below with “0” indicating that
there are no failures:
Figure 4: No Alarm Conditions Present
If an alarm condition is identified, a “1” will indicate a failure as described below:
Figure 5: Alarm Conditions Present
This example indicates that Fan #2 and Power Supply #1 have each encountered a failure.
ALARM
FANS PS TEMP
0000 00 0
ALARM
FANS PS TEMP
0100 01
0
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