Symmetricom SyncServer S100 User Manual page 47

Symmetri Symm
Also see Also
IM IMPO
than n 10 1000 00 se seco cond nds s of off f UTC tha
switchi swit
Ignore UTC Corrections from GPS Reference Ignore UTC Corrections from GPS Reference
When en th the e Har Wh
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When When
n n
n n
To us use e th this is se sett ttin ing, g, co cons nsul ult t To
Thi This s se sett ttin ing g ha has s no no ef effe fect ct whe
WARNING: The Free Run WARNING: The
have serio have se
should only be used by knowledgeable and authorized persons under carefully controlled con- should only be used by knowledgeable and authorized persons under carefully controlled con-
ditions. ditions.
Us Use e th the e
If If the the us user er in inte tends nds to to us use e UTC
n n
rent rent NTP NTP con config figurat uration
If If the the use user r int intends ends to to dis
n n
ing the ing the curre current nt NTP NTP con
See See
Setting the Time Manually Setting the Time Manually
(o (on n pa page ge 11 111) 1). .
Time Time
etricom com reco recomme mmends nds usi
see
Hardware Clock Hardware Clock
PORTA RTANT: NT: If If th the e us user er is is pr prep epar arin ing g to to s s wit
UTC ti time
ching ng to to . .
Auto Auto
Hardwa dware re Clo Clock ck is is lo loc c ke ked d to to th the e GP
to to th the e Ha
GPS-UTC GPS-UTC offs offset et
Ign Ignore ore UTC Corre UTC Correct ction ions s from
Uns Unsel elec ected ted, , th the e H H ard ardware ware Clo
NTP daem NTP daemon. on. (Reco (Recomme mmended
Sel Selec ecte ted, d, the the Hard Hardware ware Clo
NTP dae NTP daemo mon. n.
Distributing GPS Time Distributing GPS Time
when n th the e Hard
Free Run and
rious e us effects ffects up upon tim on timing netwo
but butto ton n to to ap appl ply y ch chang
APPLY APPLY
99 997-0 7-0152 1520-0 0-03 3 Rev Rev. . A A ..........................................................................
UTC ti time me, , Sym Symme metri trico com m rec
ion. .
distrib tribute ute non non-UTC -UTC tim time, e, Sym
config figurat uration ion by by del deleti eting ng all all sy synch
(o (on n pa page ge 10 108) 8) an and d
using ng the the Auto Auto setting. setting.
(o (on n pa page ge 12 128) 8). .
witch ch fr from om
me, , ma manua nuall lly y se set t it it wit withi hin n 100
GPS S re rece ceiv iver er, , th the e G G PS
Hard rdwa ware re Clo Clock ck. .
from GPS GPS Refe Referen rence ce
Clock ck us uses es th the e GPS GPS-UTC -UTC of offs fset et an and d pas
nded) ) (Fac (Factory tory Defau Default) lt)
Clock ck ig igno nores res th the e GPS GPS-UTC -UTC of offs fset et an and d pa pass sses es GPS
Hardware ware Clo Clock ck is is lo lock cked ed to to no non-G
and Ignore UTC Corrections from GPS Reference Ignore UTC Corrections from GPS Reference settings can
ing networks a rks and system nd systems s that expect U
anges es t t o o th the e confi configuration. guration.
..........................................................................
TI TIMI MING
recom omme mend nds s ke keepi
Symmet metric ricom om rec recomm ommends
nchroni ronizin zing g NTP NTP ass
Distributing Non-UTC Distributing Non-UTC
to to an and d th the e ti time
Free Run Free Run Auto Auto
1000 0 se seco conds nds of of UTC UTC ti time
PS re rece ceiv iver er pa pass sses es
set settin ting g is is: :
passe ses s UTC UTC ti time
GPS ti time
(on (on pag page e 10 109). 9).
n-GPS PS ref refere erenc nces es. .
settings can
that expect UTC TC tim time. e. These These settin
NG - - HW HW Cl Cloc ock k
eping ng the the cu cur- r-
ends cha chang- ng-
associ ociati ations ons. .
me is is mo more re
me be befo fore re
GPS S ti time GP me
me to to th the e
me to to th the e
settings gs
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