Sensors

Sensors, also called Inputs, are used to get information about the state of connected alarming systems or about the state of the TNA itself. The change of the state of a sensor usually means there is a change of the alarm state for some connected device.

Every TNA device has 10 Inputs for sensor connections. ipTNA4i devices can support 10 additional sensors using the I/O Module.

ipTNA4i has 2 Power Sensors to monitor TNA power supplies and a Cover Contact sensor to check the box cover status.

TNA Connect V2 devices have 1 Power Sensor, while TNA Connect V1 devices operate without Power Sensors.

Physical States

A TNA periodically checks the voltage of each input and gets their physical states. The physical state is then converted to an alarming state according to the following configurations:

ipTNA4i

Enabled Loop Supervision

Lower Bound	Upper Bound	Physical State
0.000V	1.464V	Open Circuit
1.465V	2.068V	Open
2.069V	3.710V	Open Circuit
3.711V	4.168V	Closed
4.169V	4.800V	Short Circuit

Disabled Loop Supervision

Lower Bound	Upper Bound	Physical State
0.000V	3.155V	Open
3.155V	4.800V	Closed

TNA Connect

Lower Bound	Upper Bound	Physical State
0.000V	1.800V	Open
1.801V	3.300V	Closed

Extension Module

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The additional inputs work in the same way as the ones on ipTNA4i board but the voltage thresholds are different.

Enabled Loop Supervision

Lower Bound	Upper Bound	Physical State
0.000V	1.335V	Open Circuit
1.336V	1.507V	Open
1.508V	1.817V	Open Circuit
1.818V	1.873V	Closed
1.874V	3.300V	Short Circuit

Disabled Loop Supervision

Lower Bound	Upper Bound	Physical State
0.000V	1.817V	Open
1.818V	3.300V	Closed

Configure Inputs

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Access level 3 or above is required to configure inputs.

To configure inputs, do the following:

1. On the TNA Web Server, navigate to notifications_none Alarming > Sensors

2. On the Inputs (1-10) tab, configure the following parameters for each input:

Name	Description
Enable	Toggle to enable or disable the input. If the input is disabled, the TNA will not check its state and therefore will not report any alarms related to this input to evalink talos.
Alarming State	The alarming state could be set to 2 different values: Open or Closed. Depending on the configuration and the physical state of the sensor, either an Alarm or Restore is reported to evalink talos as follows: Alarming State Physical State Report to evalink talos Closed Closed radio_button_checked Alarm Closed Open radio_button_checked Restore Open Closed radio_button_checked Restore Open Open radio_button_checked Alarm If the physical state is either Open Circuit or Short Circuit then Tamper is reported to evalink talos, regardless of the current alarming state. Alarming State Physical State Report to evalink talos - Open Circuit radio_button_checked Tamper - Short Circuit radio_button_checked Tamper
Integration Time	This parameter prevents the input physical state value from changing immediately after a voltage change. The sensor stays in this physical state for certain amount of time. Default value: 0.4 seconds Possible values: 0.4s, 1s, 2s, 4s, 10s, 20s, 30s
Loop Supervision	This parameter is used to enable or disable Loop Supervision. When enabled, the TNA does check for Open Circuit and Short Circuit. Note: Loop Supervision is available only for ipTNA4i and the extension module. To ensure correct operation, connect your panel as follows:

3. Click on Save

4. (Optional) If you need to apply the same configuration for all inputs at once, choose the parameters from the top near Show Resistor Values button then click on Save

5. (Optional) Click on Undo changes to reset the parameters to their previous values

To view or modify the current configuration for inputs from evalink talos, do the following:

1. On your evalink talos account, go to Sites > [site] > Receivers > tab

2. Click on Remote Control at the bottom of the tab

3. Under Input Components, you can view the Input Mode and Input Physical State for each of the 10 inputs

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When an input is disabled from the Web Server, its Input Mode is BLOCKED as shown for input 10.

4. To change the loop supervision for an input, click on edit next to its Input Mode and choose LOOP_SUPERVISION to enable loop supervision or Normal to disable it

Configure Power Sensors

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Power Sensors functionality is available for TNA Connect V2 and ipTNA4i devices only.

TNA Connect V2 has one DC power input, ipTNA4i has two DC power inputs. The power sensors in both devices work in the same way. TNA devices can measure voltage on the power inputs and report the state change to evalink talos.

Lower Bound	Upper Bound	State	Report to evalink talos
0.0V	1.5V	No Power	radio_button_checked Alarm
1.5V	7.0V	Low Power	radio_button_checked Alarm
7.0V	15.0V	OK	radio_button_checked Restore

After a voltage change, the TNA will not change the state immediately. An integration time is defined for both alarm and restore scenarios:

State Change	Integration Time
Alarm → Restore	60 seconds
Restore → Alarm	400 milliseconds

To configure power inputs, do the following:

1. On the TNA Web Server, navigate to notifications_none Alarming > Sensors

2. Click on Power

3. Toggle to enable or disable alarm reporting for each power sensor

4. Click on Save

5. (Optional) Click on Undo changes to reset the parameters to their previous values

To view or modify the current configuration for the power sensors from evalink talos, do the following:

1. On your evalink talos account, go to Sites > [site] > Receivers > tab

2. Click on Remote Control at the bottom of the tab

3. Under Remote Control, you can view the state for each power sensor named DC Input 1 and DC Input 2

4. To enable or disable the alarm reporting for each power sensor, click on edit next to DC Input 2 and toggle to enable or disable the alarming reporting for each power sensor then click Submit

Configure the Cover Contact

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Cover Contact is available on ipTNA4i devices only.

ipTNA4i devices have an additional sensor that indicates the state of the device's box cover. When this cover is pulled off, the sensor triggers an alarm.

ipTNA4i Box Cover	Physical State	Report to evalink talos
Present	Closed	radio_button_checked Restore
Absent	Open	radio_button_checked Alarm

To configure power inputs, do the following:

1. On the TNA Web Server, navigate to notifications_none Alarming > Sensors

2. Click on Cover Contact

3. Toggle to enable or disable alarm reporting for the cover contact sensor

4. Click on Save

5. (Optional) Click on Undo changes to reset the parameter to its previous value