The Transmit-Chain-Preset logical device manages to store / retrieve the settings of a complete transmit chain in one preset. The device collects the setting of a polarization switch, the frequency and the EIRP of the transmission and the device presets of two arbitrary devices (e.g. modulator and encoder) into one DevicePreset.
When such a preset is applied to the Transmit-Chain-Preset logical device, it forwards the stored settings to the appropriate devices.
The Transmit-Chain-Preset device stores it's presets always in the same directory. In an M&C configuration this usually is what you expect. There probably is one transmit chain, or two almost identical ones, all presets stored from there apply to the same device configuration. When used in an NMS environment, the transmit chain presets of all VLCs are stored in the same directory. If the VLCs are configured for different device setups, you should name the presets in a way that presets for different device setups are not mixed up. Applying a transmit chain preset to a VLC with a different device setup as it was recorded, will cause incomplete or wrong device settings.
Device window pages
The following table shows which device window pages are available with this individual device type. Tool-bar functions not mentioned here are described at the general description of device windows .
--- The device info page.
--- The maintenance page. The configuration parameters from this page are described below.Configuration parameters
At the maintenance page of the device window there are a couple of configuration parameter which must be set to interconnect the Transmit-Chain-Preset device with the devices it shall collect the settings from.
| parameter | description |
|---|---|
| switchId | Enter the message identifier here of the polarization setting the device shall store in the preset. |
| frequencyId | Enter the message identifier here of the frequency value the device shall store in the preset. |
| eirpId | Enter the message identifier here of the EIRP or gain setting the device shall store in the preset. |
| device1Name | The name of the first device which shall store all it's settings into the preset |
| device2Name | The name of the second device which shall store all it's settings into the preset |
Remarks
With version 2.00 of the driver the Transmit-Chain-Preset device has been adapted for device presets stored in text format. Unlike other devices, the Transmit-Chain-Preset allots the setting by the order of appearance in the file. Hence never add or remove lines of a Transmit-Chain-Preset file, even empty lines or comments will make the file unreadable.
Variables defined by this device driver
| name | type | flags | range |
|---|---|---|---|
| info.driver | TEXT | R/O | StringRange R/O |
| info.type | TEXT | R/O | StringRange R/O |
| info.frame | TEXT | R/O | StringRange R/O |
| config.switchId | TEXT | SAVE SETUP | StringRange |
| config.frequencyId | TEXT | SAVE SETUP | StringRange |
| config.eirpId | TEXT | SAVE SETUP | StringRange |
| config.device1Name | TEXT | SAVE SETUP | StringRange |
| config.device2Name | TEXT | SAVE SETUP | StringRange |