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Home > Support > Technical Documentation > How Basic Transparent Encoding Works
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Related Documentation

  • Transparent Encoding Applications and Support Overview
  • Using Phase-Correction FIFO Buffer with Transparent Encoding
  • Using Send Timing (ST) Clocking for Higher Speed Circuits with Transparent Encoding
  • Configuring Transparent Encoding for CTP Bundles (CTPView)
  • Configuring Transparent Encoding for CTP Bundles (CTP Menu)
 

How Basic Transparent Encoding Works

Transparent encoding samples incoming data on four input signals (SD, TT, RTS, and DTR), transports these signals across the IP network to the remote end of the circuit, and sends the signals on four output signals (RD, RT, CTS, and DSR). Figure 1 shows a simplified model of a transparent encoded circuit.

Figure 1: Simplified Model of a Transparent Encoded Circuit

Image g015401.gif

The signal sampling rate is based on the configured port rate. For example, if the port rate is 128 Kbps, then the four signals are sampled at 128 KHz, which generates a packet flow through the IP network of 512 Kbps (4 x 128 KHz). The smallest sampling rate available is 5.3 μsec (approximately 192 KHz).

To prevent errors in transport, both ends of the circuit must be synchronized with each other. You can achieve synchronization either by locking each CTP node to a common reference or by enabling adaptive clocking on one end of the circuit.

 

Related Documentation

  • Transparent Encoding Applications and Support Overview
  • Using Phase-Correction FIFO Buffer with Transparent Encoding
  • Using Send Timing (ST) Clocking for Higher Speed Circuits with Transparent Encoding
  • Configuring Transparent Encoding for CTP Bundles (CTPView)
  • Configuring Transparent Encoding for CTP Bundles (CTP Menu)
 

Published: 2011-01-09


 
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