Alcatel-Lucent 1643 AMS User's Operation Manual page 344

Timing provisioning
Signal type
The Signal Type for the station clock outputs is always 2 MHz.
Source selection
The station clock output timing can be derived from one of the system clock processes
or from the independent station clock output timing Source Reference Selector. This is
provisioned by the user. Two options are available:
• System Timing
• Independent Station Clock Timing.
STCLK output
The user can enable or disable the Station Clock Output. If it is disabled it forwards no
signal at all and cannot be used.
Switch request
Switch requests are shown in the table in order of priority, together with their
description.
Switch Request
No Request
Clear Switch
Forced Switch
Manual Switch
Switch status
This parameter indicates the latest switch request. When no protection reference is
provisioned, this parameter is not available. The possible values of this parameter are
listed in the table below:
Value
No Request
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7-42
Description
This is the default value. The system timing is operating
under normal conditions.
Replaces the status by the normal status (in case of a
previous switch).
Unconditional switch, issued by the user, even if it is
service degrading.
A conditional switch, which is issued by the user. The
switch will not be performed if it is service degrading.
If QL=Enabled, the switch will not be performed if it is
service degrading.
If QL=Disabled, the switch will be performed even if it is
service degrading.
Description
No switch request has been issued.
Alcatel-Lucent - Proprietary
See notice on first page
Parameters for provisioning station clock output
365-312-807R7.2
Issue 4, May 2007