FIJI Ring Status
A Dual Ring Fiber Network replaces the older IGS (intergroup switching) cards and module, and expands an Option 81/81C from 5 to 8 network groups, or from 160 to 256 loops. A NTRB33 FIJI card is installed in each Core/Net or Network module.
A ring of NTRC48 fiber optic cable links the FIJI cards for the Network shelf 0's, and another ring links the Network shelf 1's.
The FIJI cards in each 0 and 1 shelf pair are directly connected by a NTRC47 FIJI to FIJI Synch cable (except for Group 0).
With two rings, if there's a fault in one, the other can automatically take over. No calls are lost during the cutover.
Check Ring Status:
- Check that the Fiber Rings operate correctly:
LD 39 to load the program STAT RING 0 to check the status of Ring 0 STAT RING 1 to check the status of Ring 1
- If necessary, restore the Rings to Normal State:
RSTR to restore both Rings to Normal state
- Check the status of the FIJI alarms:
STAT ALRM to query the alarm condition for all FIJI cards in all Network Groups
FIJI Ring maintenance is performed in LD 39:
|STAT ALRM x y||Query alarm condition for FIJI card in group x, side y|
|STAT FIJI x y [FULL]||Get status of FIJI card in group x, side y (full: firmware and SONET status)|
|STAT RING x||Get status of FIJI cards on side x (0 or 1)|
|DIS FIJI x y||Disables FIJI in group x, side y|
|DIS RING x||Disables all FIJI cards on side x|
|ENL FIJI x y [FDL]||Enables FIJI in group x, side y (forced download)|
|ENL RING x||Enables all FIJI cards on side x|
|SWRG y||Switch call processing to ring y (0 or 1). No calls are lost during the cutover.|
|RSTR||Restore both Rings to Normal state|
|IDC x y||Get card id of FIJI card in group x, side y|
|TEST ALL||Perform FIJI diagnostic test|
|TEST FIJI x y||Self-test FIJI card in group x (0-7), side y (0-1)|
|END||Stop current operation or test|
|ARCV ON/OFF||Enable/disable auto-recovery operation for ring|
>LD 39 . stat ring 0 RING STATE: DRIVES HALF (000 - 479) RING AUTO RECOVERY IS ON FIJI 0 0 ENBL FIJI 1 0 ENBL FIJI 2 0 ENBL FIJI 3 0 UNEQ FIJI 4 0 UNEQ FIJI 5 0 UNEQ FIJI 6 0 UNEQ FIJI 7 0 UNEQ . stat ring 1 RING STATE: DRIVES HALF (480 - 959) RING AUTO RECOVERY IS ON FIJI 0 1 ENBL FIJI 1 1 ENBL FIJI 2 1 ENBL FIJI 3 1 UNEQ FIJI 4 1 UNEQ FIJI 5 1 UNEQ FIJI 6 1 UNEQ FIJI 7 1 UNEQ