Verilink QPRI 2921 (880-503143-001) Product Manual - Manual (Page 46)

Configuring the QPRI 2921 Via the NCM 2000 Craft Interface
3-12 Verilink QPRI 2921
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
-- QPRI CONFIGURATION MENU (TIMING OPTIONS)-- -- QPRI CONFIGURATION MENU (TIMING OPTIONS)-- -- QPRI CONFIGURATION MENU (TIMING OPTIONS)-- -- QPRI CONFIGURATION MENU (TIMING OPTIONS)--
Current shelf timing source: Card 2, INTERNAL (PRIMARY)
Current shelf timing source: Card 2, INTERNAL (PRIMARY) Current shelf timing source: Card 2, INTERNAL (PRIMARY) Current shelf timing source: Card 2, INTERNAL (PRIMARY)
Source
Source Source Source Slot Number Slot Number Slot Number Slot Number Synchronization Synchronization Synchronization Synchronization Auto Restore Auto Restore Auto Restore Auto Restore
PRIMARY PRIMARY PRIMARY PRIMARY PC) 2 PC) 2 PC) 2 PC) 2 PS) NET1 PS) NET1 PS) NET1 PS) NET1 PA) YES PA) YES PA) YES PA) YES
SECONDARY SECONDARY SECONDARY SECONDARY SC) 2 SC) 2 SC) 2 SC) 2 SS) NET2 SS) NET2 SS) NET2 SS) NET2 SA) YES SA) YES SA) YES SA) YES
TERTIARY TERTIARY TERTIARY TERTIARY TC) 2 TC) 2 TC) 2 TC) 2 TS) INTERNAL TS) INTERNAL TS) INTERNAL TS) INTERNAL TA) NO TA) NO TA) NO TA) NO
R) Receive clock from shelf: YES R) Receive clock from shelf: YES R) Receive clock from shelf: YES R) Receive clock from shelf: YES
X) exit this screen
X) exit this screen X) exit this screen X) exit this screen
[1,2] QPRI >
[1,2] QPRI > [1,2] QPRI > [1,2] QPRI >
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.