Verilink DPRI 2922 (880-503142-001) Product Manual - Manual (Page 43)

Configuring the DPRI 2922 Via the NCM 2000 Craft Interface
Verilink DPRI 2922
3-13
If you enable “Receive Clock from Shelf” (which is what you should
do if you plan on using the module’s ISDN and dial-backup
features) the following options display:
Figure 3-7 Configuration Menu (Timing Options) for Receive Clock from Shelf Option
Following is a brief description of the additional timing parameters
shown for “Yes” for the “Receive Clock from Shelf” timing option:
Table 3-8
Configuration Menu (Timing Options), Receive Clock From Shelf
TA Tertiary Auto Restore: Indicate Yes to resynchronize to your clock preference
automatically if the clock in the node fails. Otherwise, choose No. Specifying
a tertiary source for clocking is useful when power loss results in failure of
the primary and secondary sources for automatic restore. Restoring from a
tertiary source may take up to 90 seconds.
Yes or No
(Y/N)
R Receive Clock from Shelf: Use this option to indicate the DPRI receives the
timing signal from another module in the shelf or from an on-board timing
source.
Note: Changing this option will change the Configuration Menu (Timing
Options) display the next time it is refreshed, Figure 3-6 and Figure 3-7.
Yes or No
(Y/N)
X Exit the Timing Options screen and return to the T1 Port Configuration
Menu, Figure 3-4, Table 3-5.
Command Description Options
-- DPRI 2922 CONFIGURATION MENU (TIMING OPTIONS)--
Current shelf timing source: Card 2, INTERNAL (PRIMARY)
Source Slot Number Synchronization Auto Restore
PRIMARY PC) 2 PS) NET1 PA) YES
SECONDARY SC) 2 SS) NET2 SA) YES
TERTIARY TC) 2 TS) INTERNAL TA) NO
R) Receive clock from shelf: YES
X) exit this screen
[1,2] DPRI 2922 >
Additional parameters because Receive Clock From Shelf
Option selected is YES.
Command Description Options
PC Primary Module Slot Number: This option selects the module providing the
primary timing source.
Enter module
(slot) number
SC Secondary Module Slot Number: This option selects the module providing
the secondary timing source.
Enter module
(slot) number
TC Tertiary Module Slot Number: This option selects the module providing the
tertiary timing source.
Enter module
(slot) number
R Receive Clock from Shelf: This option selects whether the DPRI will receive
its timing signal from another module in the shelf, or from an on-board
timing source.
Note: Changing this option will change the appearance of the
Configuration Menu (Timing Options) the next time it is displayed,
Figure 3-6 and Figure 3-7.
Yes or No
(Y/N)
X Exit the Timing Options menu and return to the T1 Port Configuration
Menu, Figure 3-4, Table 3-5.