American Fibertek Net I/O N-111 - Manual (Page 22)

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contact will cause an aux out to be set or cleared until some other trigger clears or sets
that aux output.
The permitted targets of aux contact actions to be taken in response to local alarms are
any N-111 devices, or any other compatible VNES devices such as C10 Commander
devices, on the same network as the N-111. Up to two independent actions can be
taken by a N-111 in response to a local alarm condition.
Local actions – where a local alarm condition is set to activate an aux contact output on
the same local unit – will be taken immediately. Remote actions – where a local alarm
condition is set to trigger an aux contact on another unit – are stored in a queue and
acted on sequentially. The N-111 will for each queued action attempt to open a
connection to the target device and send it a command to take the set aux output action.
If it fails to connect, or fails to get a confirmation response from the target device, it will
retry the action after a 5 second delay. The N-111 will attempt to take an action 15 times
before abandoning it.
The user may also set up to two messages to be sent to specified IP addresses for each
alarm input. Separate messages can be specified for alarm detection and alarm
clearing.
The N-111 will also send messages to up to four Pilot servers on alarm input change, as
well as periodic updates of all alarm and aux status. These messages can trigger
events in the CMS Pilot Software.
Aux outputs
The N-111 makes an aux contact output available to devices on the network. Any
device on the network can connect to a port on the N-111 and with a properly formatted
and authenticated message signal the N-111 to trigger one of those output ports to
change state. The N-111 will verify that the indicated aux output did in fact change state
and will respond to the device which sent the message to confirm. The N-111’s aux
output can accept state change commands from any number of sources.
The N-111 output is controlled by mechanically latching relays. Once an output has
been commanded to a specific state it will retain that state until commanded otherwise,
even if power to the unit is lost. The user can set through the configuration web page
the behavior for the contacts to take when power applied to the unit after a power
outage. The output can be configured to switch on or switch off. Switching off is the
default condition. The contact will turn off on power loss, this cannot be changed.
The aux output can also be manually controlled by the user through the configuration
web page. The web page will indicate the current state of the aux output and permit the
user to change that state.
The N-111 will also send messages to up to four Pilot servers on aux contact output
change, as well as periodic updates of all alarm and aux status. These messages can
trigger events in the CMS Pilot Software.
Watchdog function