DekTec DTC-720 Xpect - Manual (Page 20)

DTC-720 Xpect ® – 24/7 Transport Stream Monitoring
USER MANUAL
20
provides a specialised interface for each configuration and ensures that the XML fields generated are
correctly formatted. Upon creation of a new configuration it will initialise each setting to sensible
default values.
Xpect is configured using a set of XML configuration files. The table below lists the different
configuration files used by Xpect.
Type File extension Description
General .xgen The master configuration file. It defines the number of transport-
streams to monitor, sets parameters for SOAP/WEB/SNMP
interfaces, specifies files locations and sizes of log/statistic
databases, etc.
NOTE: There can only be one general configuration file and it
should always be named ‘
XpectGeneralConfig.xgen
’.
TR 101 290 .x290 Configuration file for the TR 101 290 priority 1, 2 & 3 tests. Each
individual test can be enabled or disabled and the custom limits
can be specified.
Template .xtpl Configuration file for template matching. The file defines which
services, tables and basic-streams are expected in a transport
stream and defines a set of properties for each item in the
template (e.g. min/max bitrate, PID, service name, scrambled or
not, etc.).
Extra tests .xtst Configuration file for a set of tests which extend the standard
TR 101 290 Priority 1, 2 & 3 tests. The extra tests include: Delay
Factor, Packet Loss Rate, Confidence tests (like Frozen video) and
Table version tests. Each test can be enabled and disabled and
the limits for the extra test can be specified.
Mosaic .xmos Configuration file used for describing one or more screens and
mosaic cell layouts.
There can be multiple different configuration files present on the Xpect server, except for the general
configuration (
XpectGeneralConfig.xgen
), as long as each has a unique configuration ID. This allows you
to define multiple sets of TR 101 290, Extra test or Template configurations and, via their unique
configuration IDs, instruct Xpect to apply them to your monitored transport streams. The active
configuration is determined by the settings in the General configuration file (which contains a setting
per TS specifying the configuration IDs of the configuration files that should be used).
For Xpect to find the configuration files they should be stored in the following directory on the Xpect
server PC:
Win XP/2k3 ‘
C:\Documents and Settings\All Users\Documents\DekTec\Xpect\Config
’
Win Vista/2k8/7/8.1 ‘
C:\Users\Public\Documents\DekTec\Xpect\Config
’
The files located in this directory are typically created by the XCT as a set of consistent configurations.
The configuration cannot be manually modified while Xpect is running. Changes to the configuration
will require manually stopping and restarting of Xpect (via the Xpect guardian).
Xpect is stopped by stopping the Xpect guardian service in the Windows Services window as follows:
Windows Control Panel->Administrative Tools->Services (local)
Select ‘DekTec Xpect Guardian’ within the list of Services, then click ‘Restart the service’.