The TDM/TDC feature is supported on CTP2000 serial interfaces. TDM/TDC operation requires both a low-speed bundle and a high-speed bundle. This topic describes how to configure the high-speed and low-speed bundle port options when used for TDM/TDC bundles using CTPView.
Configure the high-speed bundle on an even-numbered port.
Before you begin:
To configure a high-speed CTP bundle for TDM/TDC operation using CTPView:
Table 1: High-Speed CTP Bundle Parameters for TDM/TDC Operation in CTPView
Field | Function | Your Action |
---|---|---|
Serial Encoding | Specifies the serial encoding method used on this bundle. | Specify TDM as the encoding method. |
TDM Function | Specifies the TDM function. Currently only one TDM function issupported. This option is available only on even numbered ports on a CTP2000 serial module, and when the serial encoding parameter is set to TDM. | Select the following: TDC Clk/Data on port N+1—Oversamples the incoming clock (TT) and data (SD) from the adjacent port above this one (N+1) at this port’s clock rate, and embeds it in its data. At the remote end of the network, the embedded circuit data is recovered and exits the node on port N+1 as RT and RD outputs. Because of the direct interleaving of two ports’ data, TDC is maintained between these two ports with an accuracy of one bit time at this port’s data rate. |
TDM Rate | Specifies the number of bits out of 32 that are used for the TDM function (and not for local serial port data). Keep in mind the following when you configure the TDM rate:
| Select one:
|
Configure the low-speed bundle on an odd-numbered port that is one port higher than the corresponding high-speed bundle.
Before you begin:
To configure the low-speed CTP bundle using CTPView:
![]() | Note: Do not configure any other bundle parameters. |