MASTERseries Release 6.01 - Quick Start Guide
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Basic
Configuration
Configuring System Timing
15. The Portspeed field displays the speed in cells per second based on the values set in the other
fields.
16. Commit (save) and Activate your changes from the Configuration > Options window. (For
more information see
Saving the Configuration on page 36
.)
Configuring System Timing
Configure the system timing to specify which links to use as the timing source. You can configure one
primary and one or more secondary external timing sources, or an internally generated timing source.
Access the system timing configuration option from the Setup menu.
To set timing:
1. Select a Clock Mode.
Internal - The timing source is the internal crystal of the module (±25ppm). This is the default.
External - The timing source is derived from the network using loop timing.
2. Select the links to be used as timing sources. A primary source must be selected if the clock
mode is set to external.
No - (Default) Indicates that this link is not a timing source.
Pr (primary) - Sets the selected link as the primary timing source for the chassis. You can select
only one primary source.
Se (secondary) -Sets the selected link as an alternate timing source that can be used if the
primary source fails. There is no limit to the number of secondary timing sources that can be
used.
3. Click
Save
.
Setup >
System Timing
