Canopy T1/E1 Multiplexer  | September 2004  | |
  | T1/E1 Multiplexer FPGA Version 3.4  | |
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Desired Action | Syntax, Response, and Description  | 
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Get the timing mode  | Enter get clock source | 
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  | The system responds  | 
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  | Clock source set to [loopback/recovered] | 
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  | Gets the T1 timing mode. This timing mode applies for all four T1 lines.  | |
  | Loopback mode means to take the T1 Tx clock and loop it back to the  | |
  | T1 Rx. Recovered mode means to recover the T1 clock from the  | |
  | incoming T1 over Ethernet bit stream, in other words to recover the  | |
  | clock from the far end T1.  | 
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Get the master  | Enter get master clock reference line | 
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clock reference line  | 
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  | The system responds Clk ref line: [1/2/3/4] | 
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  | NOTE: [1/2/3/4] represents T1/E1 ports 1 through 4.  | 
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  | Displays the T1 master clock reference line. This clock reference  | |
  | applies for all four T1 lines.  | 
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Get the secondary  | Enter get secondary clock reference line | 
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clock reference line  | 
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  | The system responds Backup clk ref line; [1/2/3/4] | |
  | NOTE: [1/2/3/4] represents T1/E1 ports 1 through 4.  | |
  | Displays the T1/E1 secondary or backup clock reference line. This  | |
  | clock reference is the backup clock reference for all four T1/E1 lines.  | |
  | The backup clock reference will become active only when the master  | |
  | clock reference line is unavailable.  | 
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Issue 3  | Page 69 of 73  |