Provisioning The Control Value For The Clock Module - Symmetricom TSG-3800 Series User Manual

where
{number}
25 to 1000 for Stratum 3E
100 to 5000 for Stratum 2 (quartz)
500 to 10000 for Stratum 2E (Rubidium)
MIN for minimum or MAX for maximum loop time constant
Example
Purpose: Set Clock A's time constant to 550.
Command:
CLK A TC 550
A typical display is:
->CLK A TC 550
«date» «time» «oper» Set Clk A Time Constant to 550, was 100
>
Note: The TSG-3800 sends an error message asking for a
time constant (tau) within the proper range if an invalid
number is entered.

Provisioning the Control Value for the Clock Module

The Control Value for the clock control loop is a digital number that is applied to the
Direct Digital Synthesizer (DDS) circuit, which sets the clock's output frequency.
This number is generated by the clock control loop algorithm and is applied to the
Clock module. You can display this number using the CLOCK CV command. You
can change this number only when the control loop is in the USER HALT mode.
Changes to the Control Value directly affect the output frequency by 2.2 x 10E
per step.
To display the current digital control value of the clock:
CLOCK A|B CV
A typical display is:
->CLK CV
The Current Time is «date» «time»
The Control Value for Clk A is -168 (49%)
The Control Value for Clk B is -1558 (49%)
->
12778474-002-2 Revision F – March 2004
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is:
then press Enter
Operating the TSG-3800
Provisioning the Clock Modules
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TSG-3800 User's Guide 99