Iridium mono 2k IR 1040 06 V4 - Setup of the electronic board - single installation
Single IRD system installation
A single IRD installation is an installation where only one IRD system is installed at the installation site.
Single IRD system installation, no RF systems around
For the chosen method of installing the IRD system, the settings of the electronics board are the following:
Mode NodE – NASt for a single IRD installation, the MASTER IRD can only work in the MASTER mode.
Transmitting mode – trNo
| SS4n | NETWORK SYNCHRONIZATION |
| InFr | INTERNAL FREQUENCY |
Select the mode based on the interference at the installation site – network frequency synchronization (SS4n) is recommended.
Response rESP
| SLoU | SLOW |
| FASt | FAST |
The response of the alarm evaluation is selected according to the interference at the installation site. In case of irregular strong interference a reduced rate of evaluation can be set.
Sensitivity SEnS
| SEHI | high for normal conditions |
| SELo | low sensitivity in environments with high interference |
Set according to conditions at the installation site.
Tags tAGS
| PAPI | paper tags detection without destroying them also required |
| HArd | only hard tags used |
Set according to the tags used at the installation site.
Gain GAIn
| Auto | automatic sensitivity control |
| NAnU | manual sensitivity control |
We recommend automatic sensitivity settings – the system automatically adjusts the sensitivity. If a fixed sensitivity setting is required for some reason (for example, if the reception conditions at the installation site change quickly and unpredictably, which can lead to false alarms), the sensitivity needs to be set manually. The system sets the sensitivity for channels 1 and 2 according to the value set by the parameters NAG1, NAG2.
Manual Gain 1
| NAG1 | (Fixed sensitivity channel 1) is only relevant if the parameter GAIn - NAnU is between 0 and 100 % – set the desired channel value 1 as needed. |
Manual Gain 2
| NAG2 | (Fixed sensitivity channel 2) is only relevant if the parameter GAIn - NAnU is between 0 and 100 % – set the desired channel value 2 as needed. |
Power Out PoUt
0 to 100 % – set to 100%. The maximum transmitting power ensures the maximum detection distance of the tags. Lower transmitting power needs to be set if the detection distance is large and has to be reduced.
Delay Mode
| dENo | is relevant only if the parameter trNo is set to SS4n |
| Auto | automatic transmission delay setting |
| NAnU | manual transmission delay setting |
We recommend setting Auto – in this case, at startup the IRD system detects the conditions in the entire time interval (in which it can broadcast) and sets the transmission so that the interference is the least.
With manual setting, a delay of 0.1% to 100.0% can be set in 0.1% increments.
Slave Sync
| SLS4 | in this case the setting does not affect the operation. |
Light time
| L t1 | 1 to 50 seconds – set the desired value. |
Sound time
| S t1 | 1 to 12 seconds – set the desired value. |
Sound repeat
| S rP | 0.1 to 1.0 second – set the desired value. |
Sound volume
| S uL | 0 to 100 % – set the desired value. |
Relay time
| r t1 | 0 to 100 seconds – set the desired value. |
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| AduE | adjust according to the frame used. |
Internal Frequency
| InFr | only relevant if trNo – InFr. Set the transmission frequency between 30 and 100 Hz. |
Delay value
| dEL4 | only relevant if trNo – SS4n and dENo – NAnU 0,1 to 100,0 %. |
The parameter specifies the delay time of the antenna transmission after the network voltage crosses zero. Find the value at which the input signal level value – channel 1,2 is the smallest (received noise is the smallest in this case and the antenna has the best conditions for tag detection).
Single IRD system installation, other RF systems present nearby
For this installation method, the same setup procedure applies as in the previous case, with the following warnings:
If nearby systems are operating at a different frequency than 8.2 MHz, there is very little chance that any installation problems will occur.
If two-antenna systems (Dual) operating at 8.2 MHz are installed nearby, the level of interference strongly depends on the distance and relative position of the systems. The minimum distance between IRD systems should be 7 to 10 meters. Even if the distance is over 10 meters, it is important to check the detection distance of the system before the installation.
In the event that the interrupting system is closeby, the only practical possibility to reduce the interference is to reduce the gain of the antenna, therefore to set the Gain parameter to Manual (GAIn – NAnU) and set the parameters Manual Gain 1,2 (NAG1, NAG2) such that the interference is minimal. It usually helps to reduce the transmitting power of the interrupting systems, but this option is not always feasible (permission of the owner is required).
For Transmitting mode trNo – SS4n, two ways of delay settings are possible:
- Automatic transmission delay setting Delay Mode dENo – Auto. When turned on, the system automatically searches for free broadcast intervals and starts transmitting at randomly selected free intervals.
- Automatic transmission delay setting Delay Mode dENo – NAnU. In this case, the electronics sets the gain according to Delay value (dEL4).
By setting the network synchronization (Transmitting mode trNo – SS4n), manually setting the antenna gain (mode Gain GAIn – NAnU + changing the parameters NAG1, NAG2) and possibly manually setting the delay time (Delay Mode dENo – NAnu + changing Delay value dEL4) it is possible to reduce interference and achieve good detection distances.
In the event of a failure, try setting a mode without synchronization (Transmitting mode trNo - InFr) and use the Internal Frequency InFr to set the transmission frequency such that the interaction between the systems is as small as possible.
If possible, network synchronization is preferred because it allows you to add additional IRD system installations without having to connect them with a synchronization cable.
