DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-848FIBER-LK (Fiber Link)
9
FIBER-LK (Fiber Link)
A fiber link consists of the endpoint boards that are connected via the optical
fiber, the lightwave transceivers or metallic connections on the endpoint boards,
and, if administered, the DS1 Converter (DS1 CONV) complex that exists
between the two fiber endpoints. The fiber endpoints are Expansion Interface (EI)
circuit packs and/or Switch Node Interface (SNI) circuit packs.
Three types of fiber links exist in G3r systems:
Fiber link errors and alarms are generated only on fibers that have at least one
SNI endpoint. Fiber errors for fibers that have EI s as both endpoints are
detected by the EI circuit pack, thus generating off-board EXP-INTF errors and
alarms. Fiber errors and alarms on EI-SNI fiber links generate FIBER-LK and/or
off-board EXP-INTF errors and alarms.
Fiber links are administered via
add fiber-link F
or
add fiber-link next
, where F
is the fiber-link number. The 2 endpoints of the fiber are administered (EI and EI,
EI and SNI, or SNI and SNI). In duplicated PNC configurations, both the a-pnc
fiber-link and the b-pnc fiber-link are administered to the same fiber link number.
The fiber links are designated by F P, where F is the fiber-link number and P is
the pnc, a-pnc or b-pnc. In addition, a DS1 converter complex may be
administered on the fiber link. In duplicated PNC configuration, the a-pnc and
b-pnc DS1 converter complexes are administered to the same fiber-link number.
DS1 facilities and parameters can be modified via change fiber-link F P.
An individual fiber link can be displayed with the display fiber-link F command.
All fiber links can be listed via the list fiber-link command.
MO Name (in
Alarm Log) Alarm Level Initial Command to Run
1
1. F is the fiber link number; pnc is “a-pnc” or “b-pnc” (always “a-pnc” in simplex
systems).
Full Name of
MO
FIBER-LK MAJOR test fiber
F pnc
s Fiber Link
FIBER-LK MINOR test fiber
F pnc
s Fiber Link
FIBER-LK WARNING test fiber
F pnc
s Fiber Link
EI-EI fiber This type of fiber is an EI to EI connection and is only used in
direct connect port network connectivity (PNC).
EI-SNI fiber This type of fiber is an EI to SNI connection and is only used
in Center Stage Switch (CSS) PNC.
SNI-SNI fiber This type of fiber is an SNI to SNI connection and is only
used in CSS PNC when two switch node carriers are
connected in a two or three switch node configuration.
