Timing Options - Verilink DIDCSU 2912 Manual

Dual integrated data service unit/channel service unit
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Timing Options

Figure 3-7
Timing Options Menu
-- DIDCSU 2912 CONFIGURATION MENU (TIMING OPTIONS)--
-- DIDCSU 2912 CONFIGURATION MENU (TIMING OPTIONS)--
-- DIDCSU 2912 CONFIGURATION MENU (TIMING OPTIONS)--
-- DIDCSU 2912 CONFIGURATION MENU (TIMING OPTIONS)--
Current card timing source:
Current card timing source:
Current card timing source:
Current card timing source:
Source
Source
Source
Source
PRIMARY
PRIMARY
PRIMARY
PRIMARY
SECONDARY
SECONDARY
SECONDARY
SECONDARY
TERTIARY
TERTIARY
TERTIARY
TERTIARY
R) Receive clock from shelf:
R) Receive clock from shelf:
R) Receive clock from shelf:
R) Receive clock from shelf:
X) exit this screen
X) exit this screen
X) exit this screen
X) exit this screen
A [0.0.0.204] [1,2] DIDCSU 2912 >
A [0.0.0.204] [1,2] DIDCSU 2912 >
A [0.0.0.204] [1,2] DIDCSU 2912 >
A [0.0.0.204] [1,2] DIDCSU 2912 >
Enter "T" from the T1 Port Configuration Menu to display the
Timing Options Menu:
INTERNAL (PRIMARY)
INTERNAL (PRIMARY)
INTERNAL (PRIMARY)
INTERNAL (PRIMARY)
Synchronization
Synchronization
Synchronization
Synchronization
Auto Restore
Auto Restore
Auto Restore
Auto Restore
PS) INTERNAL
PS) INTERNAL
PS) INTERNAL
PS) INTERNAL
SS) INTERNAL
SS) INTERNAL
SS) INTERNAL
SS) INTERNAL
TS) INTERNAL
TS) INTERNAL
TS) INTERNAL
TS) INTERNAL
NO
NO
NO
NO
Use this menu to determine the transmit timing source of the
DIDCSU modules. This menu changes depending on the setting of
the Receive clock from shelf option. Either Card Timing
3-7) or Shelf Timing
(Figure
If the DIDCSU card derives its timing from another module in the
shelf, select Yes for the Receive clock from shelf option and then
enter the slot of the module to be the timing source. This includes
the option of setting the DIDCSU as the timing source for the shelf.
If the DIDCSU is to derive its timing from one of its own ports or its
internal oscillators, and ignores the shelf timing table, select No for
the Receive clock from shelf option.
Select the primary, secondary, and tertiary timing sources. The
secondary and tertiary timing sources provide a backup for the
primary source. The Auto Restore option determines which timing
source is used when the primary timing source fails, restores, and
then remains viable for a period of 60 seconds.
If the primary source fails, the secondary source becomes the
timing source. When the primary source resumes service—and the
Auto Restore option is set to Yes—it resumes as the DIDCSU
module's timing source. If the Auto Restore option is set to No, the
secondary source remains the timing source until you manually
reconfigure the primary source, or change the Auto Restore option
to Yes.
Verilink DIDCSU 2912 User Manual
PA) NO
PA) NO
PA) NO
PA) NO
SA) NO
SA) NO
SA) NO
SA) NO
TA) NO
TA) NO
TA) NO
TA) NO
3-8) applies.
DIDCSU T1 Version
(Figure
3-11

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