Mike's PBX Cookbook

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:

  1. Check that the Fiber Rings operate correctly:

    LD 39to load the program
    STAT RING 0to check the status of Ring 0
    STAT RING 1to check the status of Ring 1

  2. If necessary, restore the Rings to Normal State:

    RSTRto restore both Rings to Normal state

  3. Check the status of the FIJI alarms:

    STAT ALRMto query the alarm condition for all FIJI cards in all Network Groups

Commands:

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

Example:

>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
Home » Meridian » Maint » Fijiring