Industrial Ethernet Layer 2 Managed Switch – Web Management Manual
April 29, 2008
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5. Relay Alarm
Managed Switch offer a relay contact output on Terminal Block of the Switch equipment. It is able
to connect to a light, buzzer …etc. warning device and notify system failures immediately.
We also offer the web tool to configure the relay manually. It’s convenient for you to
enable/disable relay warnings since the Switch equipments are far from you.
Relay Output
This function enables you to configure the relay warnings of Power, Link Lose and
Communication Lose.
System Relay Alarm
When alarm occurred, the relay output on the Terminal Block is activated, and System Relay
Alarm is turned ON.
Power Relay Enable
Managed Switch support dual power inputs to implement the power redundancy, and also
support two relay configurations for those two power inputs.
You can tick the “Power1” or “Power2” checkbox to enable the power relay. If power failures
occur, system relay will be activated.
Link Lose
Set relay active if port disconnected, such as, no cable connected; cable break; opposing
device fail.
Communication Lose
Set relay active if port of the ring pair disconnected.
