Symmetricom SyncServer S100 User Manual page 121

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The SETT The
Distrib Distributing GPS
Syn SyncSe
To To di dist strib ribut ute e GPS
1. 1. On
2. 2. (Rec
3. 3. Cli
4. 4. On
5. 5. On
6. 6. (O (Opti ptiona
CAUTION: NTP time is based on the UTC time scale. Distributing GPS time over NTP is CAUTION: NTP time is based on the UTC time scale. Distributing GPS time over NTP is
non-st no
This action should only be performed by a person who is knowledgable and authorized to do This action should only be performed by a person who is knowledgable and authorized to do
so. so.
About dist About distributing GPS
..........................................................................99 997-0
mm/dd/yyyy mm/dd/yyyy hh:mm:ss.x hh:mm:ss.x
yy yyyy yy ddd ddd hh: hh:mm: mm:ss ss.x .x
MON MON dd dd yyy yyyy y hh:mm hh:mm:ss. :ss.x x
hh:mm:ss.x hh:mm:ss.x
"x.y" y" form format: at:
x x = = UTC UTC sec seconds onds (0-59 (0-59) )
y y = = fra fract ctio ions ns of of a a se seco cond nd
the rem remai aini ning ng for forma mats ts: :
mm mm = = mo mont nth h 01 01 th thro roug ugh h 12 12
dd dd = = da day y 01 01 th thro roug ugh h 31 31
dd ddd d = = da day y of of ye year ar 00 001 1 th thro roug ugh h 36 366 6
yy yyyy yy = = fou four-dig r-digit it yea year r
MO MON N = = fi first rst thr three ee le lette tters rs of of th the e mo
hh hh = = ho hour urs s 00 00 th thro roug ugh h 23 23
mm mm = = mi minut nutes es 00 00 thr throug ough h 59 59
ss ss = = se seco conds nds 00 00 th throu rough gh 59 59
x x = = fra fract ctio ions ns of of a a se seco cond nd
SETTIM IMEOF EOFYEAR YEAR co comm
uting GPS Time Time
cServ rvers ers ca can n di dist strib ribut ute e GPS
GPS Ti Time me: :
On th the e
TI TIMI MING NG - HW - HW Cl Clock ock
. .
GPS Refe GPS Referen rence ce
(Recomm ommende ended) d) On On the the
deselectin desel ecting g the the ch chec eckb kbox ox nex
Enable Enable
Click ck the the button. button.
APPLY APPLY
On th the e pa page, ge, del
NTP - Config NTP - Config
ti tion on: : Kee Keep p NTP NTP as asso soci ciat atio ions ns tha
UTC.) UTC.)
On th the e
SERVICES - Startup SERVICES - Startup
button. button.
onal) l) Aft After er th the e Syn SyncSe
on on STATUS - ng pag page e wit
STATUS - Timi Timing
be be ah ahea ead d of of th the e UTC UTC or or st stan anda dard rd ti time
n-standard and ca andard and can have n have seriou
ributing GPS Time Time
month nth (e. (e.g., g., "J "JAN") AN")
mmand and doe does s not not se set t th the e Hard Hardware
GPS ti time me in in pl plac ace e of of UTC UTC ti time
page, , se sele lect ct the page the ch chec eckb kbox ox ne next xt to to
p page age, , di disa sabl ble e al all l th the e ref
TI TIMI MING NG - HW - HW Clo Clock ck
next t to to ea each ch on one. e.
delete ete al all l the the NTP NTP as asso soci ciat atio ions ns ex exce cept pt Hard
that t are are al also so co confi nfigur gured ed to to di dist strib ribute
pag page, e, unde under r
Syste System m Control Control
cServe rver r res restar tarts ts, , co comp mpare are th the e Hardware Clock Time
with h so some me ot other her ac accu curat
me di dis s pl play ay by by th the e va valu lue e of of th the e GP
serious s conseq consequences uences for systems that for systems that are
7-0152 1520-0 0-03 3 Rev Rev. . A A
Distrib Dis tributi uting ng GPS
ware Clo Clock ck to to
Free Run Free Run
me. .
Ignore Ign ore UTC UTC Correc Correctio
refere erenc nces es ex exce cept pt GPS
Hardware ware Clo
ute GPS GPS ti time me in inst stea ead d of
, , sel select ect and cl clic ick k the and
Reboot Reboot
Hardware Clock Time seconds
rate e ti time me di disp spla lay. y. The The GPS GPS ti time
GPS-UT S-UTC C Of Offs fset et. .
are syn synchron chronized to ized to UTC.
GPS Tim Time e
mode. mode.
tions ns from from
GPS by by
Clock ck. . (Ex (Exce cep- p-
of
the
APPLY APPLY
seconds
me sh shou ould ld
UTC.