Verilink DIU2130 -- TIMING SOURCE --
The T command on the DIU2130 Configuration/Diagnostics menu is used to set the
master timing source for the DIU2130 card. The submenu looks like:
T1 timing source (1) port 1 (2) port 2 (3) csu >
In most cases the value CSU will be selected to let the timing source being used
by the associated CSU also time the DIU2130 card. In the less common case of
tail circuit timing, where a dataport is being connected via a crossover cable
to another DCE, a dataport may be selected as the input source for timing.
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