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# Configuring Signaling for CTP Bundles (CTPView)

You can set input and output signals for the CTP device. Your settings should be based on the settings of the user equipment.

- Output signals—You can set output signals to a fixed value, or you can set them to inband so that the output signal state is based on the state of the input signal at the user equipment. Output signals that you can set vary depending on whether the bundle is configured as the DTE or the DCE:
  - DTE output signals:
    - DTR (data set ready)
    - RTS (request to send)
    - LL (local loopback)
    - RL (remote loopback)
  - DCE output signals:
    - DSR (data set ready)
    - CTS (clear to send)
    - DCD (data carrier detect)
    - TM (test mode)
- Input signals—You can set the input signals to either unused (ignored) or used to create a demand circuit. When configured for demand, packets created from the circuit are transferred across the IP network only when the signal lead is in the specified state for the circuit to be Demand Call – Active. When two or more leads are configured for demand, all configured leads must be in the Demand Call – Active state for the circuit to transfer packets across the IP network.

  Input signals that you can set vary depending on whether the bundle is configured as the DTE or the DCE:

  - DTE—Input signals are TM, CTS, DSR, DCD.
  - DCE—Input signals are RL, RTS, DTR, LL.

  The input state of each signal lead is encoded once in every transmitted IP packet. Thus the granularity of the transitions (frequency or changes) that can be transferred across the network is equal to the packet rate of the circuit.

Before you begin:

- Log in to the CTPView software at least at the Net_Admin level.
- Connect the CTPView server to the CTP device for which you want to configure bundles.
- Disable the bundle before you modify the bundle options.

To configure signaling for CTP bundles using CTPView:

1. In the side pane, select Bundle > Configuration.
2. Run your mouse over the Display and Select an Existing Bundle bar.
3. In the table of bundles, select the bundle that you want to modify.
4. Under Bundle Options, place a check mark in the Advanced Options show check box to display advanced parameters, and configure the parameters described in Table 1.

5. Click Click to Submit Bundle AND Port Changes.

Table 1: CTP Bundle Signaling Settings in CTPView

Field | Function | Your Action
--- | --- | ---
Signal Out - Output Delay | Specifies the output signaling delay in packets. | Select the number of packets: 0 1 2 3
Signal Out - DSR/DTR | Specifies the output signal depending on whether the bundle is configured as the DCE or the DTE: DCE—DSR output signal. DTE—DTR output signal. | Select one: Fixed - Low—Signal is turned on. Fixed - High—Signal is turned off. InBand - From Remote RL—Output signal is based on the state of the RL input signal from the DCE or the TM signal from the DTE. InBand - From Remote RTS—Output signal is based on the state of the RTS input signal from the DCE or the CTS signal from the DTE. InBand - From Remote DTR—Output signal is based on the state of the DTR input signal from the DCE or the DSR signal from the DTE. InBand - From Remote LL—Output signal is based on the state of the LL input signal from the DCE or the DCD signal from the DTE.
Signal Out - CTS/RTS | Specifies the output signal depending on whether the bundle is configured as the DCE or the DTE: DCE—CTS output signal. DTE—RTS output signal. | Select one: Fixed - Low—Signal is turned on. Fixed - High—Signal is turned off. InBand - From Remote RL—Output signal is based on the state of the RL input signal from the DCE or the TM signal from the DTE. InBand - From Remote RTS—Output signal is based on the state of the RTS input signal from the DCE or the CTS signal from the DTE. InBand - From Remote DTR—Output signal is based on the state of the DTR input signal from the DCE or the DSR signal from the DTE. InBand - From Remote LL—Output signal is based on the state of the LL input signal from the DCE or the DCD signal from the DTE.
Signal Out - DCD/LL | Specifies the output signal depending on whether the bundle is configured as the DCE or the DTE: DCE—DCD output signal. DTE—LL output signal. | Select one: Fixed - Low—Signal is turned on. Fixed - High—Signal is turned off. InBand - From Remote RL—Output signal is based on the state of the RL input signal from the DCE or the TM signal from the DTE. InBand - From Remote RTS—Output signal is based on the state of the RTS input signal from the DCE or the CTS signal from the DTE. InBand - From Remote DTR—Output signal is based on the state of the DTR input signal from the DCE or the DSR signal from the DTE. InBand - From Remote LL—Output signal is based on the state of the LL input signal from the DCE or the DCD signal from the DTE.
Signal Out - TM/RL | Specifies the output signal depending on whether the bundle is configured as the DCE or the DTE: DCE—TM output signal. DTE—RL output signal. | Select one: Fixed - Low—Signal is turned on. Fixed - High—Signal is turned off. InBand - From Remote RL—Output signal is based on the state of the RL input signal from the DCE or the TM signal from the DTE. InBand - From Remote RTS—Output signal is based on the state of the RTS input signal from the DCE or the CTS signal from the DTE. InBand - From Remote DTR—Output signal is based on the state of the DTR input signal from the DCE or the DSR signal from the DTE. InBand - From Remote LL—Output signal is based on the state of the LL input signal from the DCE or the DCD signal from the DTE.
Signal In - RL/TM | Specifies the input signal depending on whether the bundle is configured as the DCE or the DTE: DCE—RL input signal. DTE—TM input signal. | Select one: Unused—Input signals are ignored. Demand Call - Active High—Signal is turned off. Demand Call - Active Low—Signal is turned on.
Signal In - RTS/CTS | Specifies the input signal depending on whether the bundle is configured as the DCE or the DTE: DCE—RTS input signal. DTE—CTS input signal. | Select one: Unused—Input signals are ignored. Demand Call - Active High—Signal is turned off. Demand Call - Active Low—Signal is turned on.
Signal In - DTR/DSR | Specifies the input signal depending on whether the bundle is configured as the DCE or the DTE: DCE—DTR input signal. DTE—DSR input signal. | Select one: Unused—Input signals are ignored. Demand Call - Active High—Signal is turned off. Demand Call - Active Low—Signal is turned on.
Signal In - LL/DCD | Specifies the input signal depending on whether the bundle is configured as the DCE or the DTE: DCE—LL input signal. DTE—DCD input signal. | Select one: Unused—Input signals are ignored. Demand Call - Active High—Signal is turned off. Demand Call - Active Low—Signal is turned on.

#### Published: 2011-01-09

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