Fre Q Uency Re Fe Rence T I Le - Viavi 3900 Series Operation Manual

Te st Se t U ti lity T iles
4 .7

FRE Q UENCY RE FE RENCE T I LE

Th e F req u en cy R ef ere nc e T ile loc ks th e Te st S et to th e inte rn al fre qu e nc y s ta nd ar d or to
an e xte rn al s ig na l fro m th e E x t R ef I/O co n ne ctio n .
Th e Re fe re nc e ( Inte rn al/ Ex te rna l) d ro p- do wn m e nu d efin e s th e ref ere n ce so ur ce as
int ern a l or ex ter na l. Wh en e xte rn al is s ele ct ed an e xte rn al so urc e m us t be c on ne ct ed to
th e Ex t Re f I/O C o nn ec to r o n th e R ea r Pa n el. In co rre ct R ef ere nc e s ettin g re su lts in e rro r
m es sa ge s ho w n b elo w .
F ig. 4-1 5 U TIL S Fr eq ue n cy Re fe re nc e T ile
F ig . 4- 16 R ef ere n ce U nlo ck ed E rro r M e ss ag e
4 - 13