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Configure a transport stream for LSM
Last Updated: July 07, 2026
The LSM transport stream is used to receive the NET PID and modify the NET PID for a specific narrowcast service group (NSG). You must configure an LSM transport stream for each NSG. This procedure assumes that you are logged in to the EM.
  1. Login to Element Manager, https://<VPS#2_IP_address:5557>
  2. Click Transport Stream on the left navigation pane.
  3. Choose the specific server on which you want to create the transport stream from the drop-down list.
  4. Click Add icon to create a transport stream.
  5. Enter the stream values as necessary in the Add Transport Stream dialog that opens:
    ParameterDescription
    Transport Stream TypeChoose LSM NET PID from the drop-down list.
    Name

    (Optional)

    Enter a unique descriptive name. The name is a case-sensitive string of up to 32 characters. Valid characters are:

    a-z, A-Z, 0-9, @, +, #, _ (underscore), and - (hyphen).

    Destination IPEnter multicast IP address of the RPD or RMD that will receive this MPTS. Typically set to an IPv6 multicast IP when transmitting to an RPD or RMD.
    Destination UDP

    (Range: 1 – 65535)

    		Enter valid UDP Port number if this is a non-DEPI output stream.
    Output InterfaceSelect the output interface IP from the drop down menu. This defines the output IP along with the VUE server to send the output stream. If VUE server is part of a redundancy cluster this must be a VIP.
    NOTE:

    If you have selected a specific VUE server from the drop-down list, then only the output interface IP of that server will be available.

    The type of IP selected (IPv4 or IPv6) must be the same as the type of destination IP entered. For example, if an IPv6 multicast destination IP was entered, the selected interface IP must be an IPv6 address. If destination IP is an IPv4 address, then the selected interface IP must be an IPv4 address.

    PAT TSID

    (Range: 0 – 65535)

    		Enter a valid Transport Stream ID. This must be a unique TSID value across all RTSP transport streams.
    NOTE: The PAT TSID must match the TSID configured for the E6000 QAM channel destined to receive this MPTS.
    TS Info Rate (Mbps)Default is Annex B rate of 38.8107Mbps. The default setting should be used unless you desire to output a stream to an Annex A or C downstream device.
    Use Annex/Symbol RateEnable this setting to specify the Annex mode (A, B, or C), modulation mode (QAM64 or QAM256) and the symbol rate of the output stream. VUE uses these 3 parameters to determine a more precise output rate to match the RxD.
    Annex ModeUsed to automatically assign and output TS rate. Default is Annex B (38.8107Mbps). When set to Annex A or C, you can use the calculator on the EM to easily select an output TS rate.
    ModulationThe modulation mode used on the QAM interface. Supported values are QAM256 or QAM64.
    Symbol Rate (Msps)

    (Range 0, 0.8 – 6.952 Msps)

    		The symbol rate (Msps) to be used for the MPEG video. The default is 0. When symbolRate is nonzero, the fixed information rate of the output transportStream is calculated based on the modulation (default QAM256), symbolRate and annex (default B) attributes instead of the tsInfoRate attribute.
    NULL PID BW (bps)

    (Range: 0 - 1,000,000 bps)

    (Optional)

    		This is an amount of NULL BW to reserve on a TS. This ensures that the TS output will include an amount of NULL BW. Setting this incorrectly can result in dropped PSI and data/video packets.
    NOTE: Necessary only when the VUE is connected to a downstream RMD.
    Mute Output TSUnchecked or disabled by default. Check this box to prevent the output stream from being transmitted to the RPD/RMD. The mute function mimics an EQAM channel mute capability.
    PID RemappingDefault is set to enable PID Remapping. This will ensure the output PIDs are unique for each program created. It is recommended to leave this setting enabled.
    Reuse Input PAT TSIDIf enabled, follows the input TSID value for an auto-mapped input transport stream when creating an Output TS.

    If disabled, configured value of the PAT TSID will be inserted in the Output TS.

  6. Click Next to go the next TS screen.
  7. Enter the Group Name of the NSG. This must match the entry on the ERM.
  8. Click Submit to save the values.
    Click Back to go back to the previous screen or Cancel to disregard the change.
The LSM Transport Stream is added. To complete configuring the LSM transport stream, add a NET PID mapping. To complete broadcast video configuration, refer Configure PID mappings.