1.230 Ericsson-AVP

This page describes the device driver and the device window for the Ericsson AVP Encoder / Satellite Modulator.

The device driver expects the following modules to be installed in the device:

• ASI IO Option Card
• CE-xH42 Pre-Processor
• CE-xH42 Encoder
• Satellite Modulator Option Card

The device driver automatically identifies the installed cards and configures itself accordingly. If the satellite modulator card is missing, all modulator related parameters are disabled, the parameter pages which solely contain modulator parameters are removed.

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 .

• --- RF / modulator parameters
• --- Satellite output transport stream parameters
• --- ASI output transport stream parameters
• --- Video parameters
• --- Audio 1 parameters
• --- Audio 2 parameters
• --- Audio 3 parameters
• --- Audio 4 parameters
• --- Audio 5 parameters
• --- Audio 6 parameters
• --- Audio 7 parameters
• --- Audio 8 parameters
• --- The faults page.
• --- The device info page.
• --- The maintenance page.

Parameters are grouped / arranged in almost the same way as the Voyagers web GUI does.

Configuration parameters

At the maintenance page of the device window there are a couple of configuration parameters which must be set to make the software talk to the encoder. Pleased note that the modulator related configuration parameters are disabled unless the driver detects the presence of a satellite modulator card.

Fault flags

The Ericsson AVP encoder internally knows over 250 different fault conditions. The sat-nms device driver shows a selection of important faults and a fault called "Other fault". The latter is raised if the encoder shows a summary fault but none of the fault flags known to the sat-nms software is set.

Please note, that masking a fault condition at the encoder's web GUI affects the encoder's summary fault but not the fault as it is shown in the software. To mask a fault flag in the sat-nms software, use the device's 'Faults' page and set the fault priority of this fault flag to INFO or OFF.

Status polling

To improve the performance of the device driver, the polling cycles at which configuration parameters are read back have been set to 40-70 seconds. Polling parameters faster would degrade the performance of the encoder's web interface and als slow down the detection of faults.

As a consequence of this, it may take up to 70 seconds until a setting changed at the encoder's web interface becomes visible in the sat-nms software.

Transport stream mux

The sat-nms device driver is not capable to edit all aspects of transport stream parameters. Specially, it is not possible to add or remove services from transport streams.

The device driver assumes that there is one transport stream with one service for each output and lets you edit the parameters of these streams / services. This completely covers the requirements of a SNG use of the device.

For more complex configurations you may use the encoder's web interface. The parameters of the first service are still editable in the sat-nms software. If the first and only service for a transport stream is removed in the encoder's web interface, the sat-nms software shows a communication fault as the parameters of this service are no longer existent. Add a dummy service to the transport stream in the web interface if this happens.

BISS key management

Unlike the Voyager-II encoder, the AVP does not permit to assign BISS keys / session words directly to an output stream. Instead, it uses an internal of up to 31 keys which are assigned to the stream by number.

The sat-nms device driver always uses the BISS key[1] table entry, emulating the old behaviour. This is necessary to make the device work together with the BISS key central database (CDB).

Variables defined by this device driver