Reference Stage Process - Viavi 8100 V2 Series User Manual

Chapter 7 FiberComplete Modules
Establishing References
nected from the test instruments and/or have been contaminated by dirt or dust, they
have to be re-inspected and referencing stage has to be redone.
Reference methods for insertion loss and ORL testing
Table 5 Reference methods for Insertion Loss and ORL Testing
Setup require-
ment
Description
Recommenda-
tions
Loss principle

Reference stage process

The Power Meter option is mandatory onto the 8000 V2/6000(A) Mainframe.
220
IL Loopback
Reference Method
No specific require-
ment
Each unit is performing
its own IL reference,
with its source from the
module port and pow-
ermeter from the base-
unit, this with one dedi-
cated jumper.
Easiest process.
Not recommended for
short links.
One the reference is
performed, do not dis-
connect jumper from
the source
Link ORL, including
link connectors.
Adapter Adapter
Link under test
User Manual
IL Side-by-side
Reference method
Units shall be at the same
location for references
Each unit is performing its
own IL reference, and
units are connected using
two jumpers and a bulk-
head adapter.
Most accurate setup, but
both units must be at the
same location for refer-
ences.
Once the reference is per-
formed, do not disconnect
jumper from units ports.
Link IL including one link
connector
Adapter Adapter
Link under test
78000010220 Rev. 024
Zero ORL
reference method
No specific require-
ment
Each unit is perform-
ing its own ORL ref-
erence, with its
source / powermeter
from the module,
this with one dedi-
cated jumper
Easy process.
Once the reference
is performed, do not
disconnect jumper
from the source.
Use of non reflective
terminator is manda-
tory for bend insen-
sitive jumper.
Link ORL measure-
ment after jumper,
for optimized test-
ing. Requires man-
drel wrap or non
reflective termina-
tion at link end.