BR/Console Properties Tab for MLC 8000 Subsite Link Converter Configuration in Non IP Simulcast Systems
This section provides information about the fields on the BR/Console Properties Tab for MLC 8000 Subsite Link Converter configuration in non IP simulcast systems. The information provided includes the field name, default value, range of values, and description.
In the following table, all fields are editable unless a note in the description column indicates otherwise.
| Field | Default Value | Range of Values | Description |
|---|---|---|---|
| Port ID | Not applicable | 00001 to 65535 | Serves as a unique identifier for each port of the MLC 8000 Subsite Link Converter (unique across the system). The Port ID is used as the RPDFL ID in the RPDFL packets to and from this MLC 8000 Subsite Link Converter port. One port of the MLC 8000 Subsite Link Converter serves one base radio and thus, each base radio in the MMC channel cluster holds a unique identification number that it gets when connected to the MLC 8000 Subsite Link Converter port.
NoteYou cannot edit this field.
|
| BR Name | Blank | 0 to 32 alphanumeric characters | Indicates the base radio name. This name is written in the MLC 8000 Configuration Tool main screen and at the Control & Display window. |
| Link Type | None | 4-Wire-TRC, 4-Wire External PTT (Circuit), V.24 Link – INTERNAL Tx CLOCK, V.24 Link – EXTERNAL Tx CLOCK, Hybrid Link – INTERNAL Tx CLOCK, Hybrid Link – EXTERNAL Tx CLOCK | Indicates the type of the resource connected to the selected analog/digital port. Each MLC 8000 Subsite Link Converter port is set independently.
NoteIf you modify this field, the MLC 8000 Subsite Link Converter is restarted to implement the new parameter value.
|
| BR Location | 1 | Prime Site, Subsite ID 1 to 64 | Specifies the number and name of the Subsite in which the attached base radio is located.
NoteFor circuit systems (the devices are at the site), the subsite number and name is the site number and name and thus, the Prime Site menu option should be selected. The device holds the subsite number and retrieves the subsite name from the subsite list. If the subsite required is not already in the list, the Add Subsite option in this field can be used to add it so that it can then be assigned. If you modify this field, the MLC 8000 Subsite Link Converter is restarted to implement the change.
|
| Port | None | 1 to 4 | Specifies the port on which to do advanced configuration.
NoteSelect the port which must be on in order to perform advanced configuration.
|
| Analog Voice Console Hangtime (sec) | 0.0 seconds | 0.0 to 15.0 seconds (in 0.1 second increments) | Specifies the amount of time the base radio remains keyed and transmitting silence at the end of the analog voice from the attached TRC analog console. The period of silence is pre-emptible by any outbound or inbound signal. |
| Analog Voice Repeat Hangtime (sec) | 5.0 seconds | 0.0 to 15.0 seconds (in 0.1 second increments) | Specifies the amount of time in which the base radio remains keyed and transmitting silence at the end of the repeat voice from the attached analog base radio receiver. The period of silence is pre-emptible by any outbound or inbound signal. This field is ignored for RPT OFF setting, either by the Configuration Tool or by the TRC command from the MLC 8000 Analog Comparator attached to the TRC console. |
| Channel Name | Blank | 0 to 32 characters | Specifies the channel name. |
| Channel Number | 0 | 001 to 200 | Specifies the voter channel number that the radio port belongs to. A zero in this field indicates that the radio port is unassigned to any voter. For digital systems, this field is populated with the channel number specified when adding the digital comparator. |
| Voter-ID | Blank | 00001 to 65535 | Specifies the Voter ID of the MLC 8000 Analog Comparator to which this MLC 8000 Subsite Link Converter port is associated. A blank field indicates that the MLC 8000 Subsite Link Converter port is unassigned to any channel (voter/MLC 8000 Analog Comparator). For digital systems, this field is not applicable since there is no associated analog comparator.
NoteYou cannot edit this field.
|
| Advanced Configuration Fields — Main Tab | |||
| Voice Detection Mode | Status Tone | Status Tone | Specifies voice detection mode. The MLC 8000 Subsite Link Converter input port detects the Status Tone (ALMT for Mixed Mode Systems) from the base radio. While the tone exists, the MLC 8000 Subsite Link Converter declares the receive state of the base radio as “Idle”. If the base radio status tone/ALMT is stopped, the MLC 8000 Subsite Link Converter declares the receive state of the base radio as “Receive” (unless there is no audio and no status tone, in which case the MLC 8000 Subsite Link Converter determines the base radio as failed).
Note For analog voting or digital systems, this field is set to Status Tone. For mixed mode systems, this field is set to ALMT. You cannot edit this field.
|
| Status Tone Timeout (sec) | 60 seconds | 3 to 65535 seconds | Specifies status tone timeout. If the status tone has not been detected at the MLC 8000 Subsite Link Converter radio port input for the duration specified in this field, the MLC 8000 Subsite Link Converter marks this radio port as “failed”. This “failed” mark stays intact until the status tone is observed in the MLC 8000 Subsite Link Converter analog input port. |
| Status Tone Frequency (Hz) | 2175 Hz | 2100, 2175, or 2325 Hz | Specifies status tone frequency. This parameter sets the incoming signal frequency that when received, indicates the base radio Receiver is squelched, and not in "Receive Mode". When the Status Tone is not received, the Receiver is receiving a valid signal.
NoteIf you modify this field, the MLC 8000 Subsite Link Converter is restarted to implement the new parameter value.
|
| Output Level | -10.0 dBm | -20.0 dBm to 0.0 dBm (in 0.1 dB steps) | Specifies the output level which is used to control the average audio level.
NoteIn 4–wire TRC links, the High Level Guard Tone (HLGT) is generated at 6 dB higher gain than the power level of the transmitted audio. The Function Tone (FT) is generated at -10 dB in relation to the HLGT power. Low-Level Guard Tone (LLGT) is generated at a -30 dB level in relation to the HLGT.
|
| Input Level Differential (dB) | -8.6 dB | -20 dB to +3 dB | Represents the difference in dB between the status tone level (or ALMT) and analog voice input signal level. For GTR 8000s, this difference is displayed on the Rx Wireline Alignment screen.
NoteInput Level Differential = Status Tone/ALMT Level Below Peak Audio + 4.4, where peak audio is at 100% deviation.
|
| Analog Line Transient Time (msec) | 20 msec | 5 to 10000 msec | Used to ensure that any transient on a port during the initial portion of the call inbound is excluded from the SQM Measurement. The line transient settle time should be set to the time period from the point that “start receive from BR” state is declared (for example Loss of status tone or “E” I/O signal have been received) until the transient is settled on the incoming voice signal. SQM may be measured after the timer has expired. This timer is the highest priority timer in the SQM measurement. It specifies the time to wait after transitioning to analog, before beginning the SQM measurement. Note that this parameter is related to the noise that exists before audio signal is discovered at the port.
NoteIf you modify this field, the MLC 8000 Subsite Link Converter is restarted to implement the new parameter value.
|
| Advanced Configuration Fields — TRC Generation Tab | |||
| Guard Tone Frequency (Hz) | 2175 Hz | 2100, 2175, or 2325 Hz | Specifies guard tone frequency. Note, that to be detected, the TRC HLGT duration has to be longer than 50 msec.
NoteIf you modify this field, the MLC 8000 Subsite Link Converter is restarted to implement the new parameter value.
|
| HLGT Duration (msec) | 120 msec | Not applicable | Specifies the High Level Guard Tone (HLGT) duration.
NoteYou cannot edit this field. It is set to 120 msec.
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| FT1 Duration (msec) | 40 msec | Not applicable | Specifies the duration of FT. The FT1 detection window is 120 msec following the HLGT signal end. The TRC FT length has to be 40 msec or less to be detected.
NoteYou cannot edit this field. It is set to 40 msec.
|
| Default Function Tone | F2 | F1 to F17:
|
Specifies the default FT1 tone value the MLC 8000 Subsite Link Converter uses before sending repeated audio to the base radio. After power-up, the TRC is set with the default FT1 tone. The MLC 8000 Subsite Link Converter sets the base radio in Tx 20 state by sending HLGT, Default-FT1, LLGT, and then voice. |
NoteWhen the link type is 4-wire-TRC, 160 ms of the “Pre time” value is truncated while the MLC 8000 is generating the TRC sequence. In order to prevent MDC truncation, the “Pre time” value should be configured as 500 ms in the MSI consoles. See the
Provisioning Manager User Guide, sections on: “Analog Conventional Channels”, “Mixed Mode Conventional Channels”, and “ACIM Conventional Channel”.