ZyXEL Communications GS3700 Series User Manual page 62

Table 12 Basic Set t ing > General Set up ( cont inued)
LABEL DESCRIPTION
Cont act Person's Type t he nam e of t he person in charge of t his Swit ch. You can use up t o 32 print able
Nam e ASCI I charact ers; spaces are allowed.
Use Tim e Server Type t he t im e service prot ocol t hat your t im eserver uses. Not all t im e servers support all
w hen Boot up prot ocols, so you m ay have t o use t rial and error t o find a prot ocol t hat works. The m ain
differences bet ween t hem are t he t im e form at .
When you select t he D a yt im e ( RFC 8 6 7 ) form at , t he Swit ch displays t he day, m ont h,
year and t im e wit h no t im e zone adj ust m ent . When you use t his form at , it is
recom m ended t hat you use a Dayt im e t im eserver wit hin your geographical t im e zone.
Tim e ( RFC- 8 6 8 ) form at displays a 4- byt e int eger giving t he t ot al num ber of seconds
since 1970/ 1/ 1 at 0: 0: 0.
N TP ( RFC- 1 3 0 5 ) is sim ilar t o Tim e ( RFC- 868) .
N on e is t he default value. Ent er t he t im e m anually. Each t im e you t urn on t he Sw it ch,
t he t im e and dat e will be reset t o 1970- 1- 1 0: 0.
Tim e Server I P Type t he I P address of your t im eserver. The Swit ch searches for t he t im eserver for up t o
Address 60 seconds. I f you select a t im eserver t hat is unreachable, t hen t his screen will appear
locked for 60 seconds. Please wait .
Current Tim e This field displays t he t im e you open t his m enu ( or refresh t he m enu) .
New Tim e Ent er t he new t im e in hour, m inut e and second form at . The new t im e t hen appears in t he
( hh: m in: ss) Cu r r e n t Tim e field aft er you click Apply.
Current Dat e This field displays t he dat e you open t his m enu.
New Dat e ( yyyy- Ent er t he new dat e in year, m ont h and day form at . The new dat e t hen appears in t he
m m - dd) Cu r r e n t D a t e field aft er you click Apply.
Tim e Zone Select t he t im e difference bet ween UTC ( Universal Tim e Coordinat ed, form erly known as
GMT, Greenwich Mean Tim e) and your t im e zone from t he drop- down list box.
Daylight Saving Daylight saving is a period from lat e spring t o early fall when m any count ries set t heir
Tim e clocks ahead of norm al local t im e by one hour t o give m ore dayt im e light in t he evening.
Select t his opt ion if you use Daylight Saving Tim e.
St art Dat e Configure t he day and t im e when Daylight Saving Tim e st art s if you select ed D a yligh t
Sa ving Tim e . The t im e is displayed in t he 24 hour form at . Here are a couple of
exam ples:
Daylight Saving Tim e st art s in m ost part s of t he Unit ed St at es on t he second Sunday of
March. Each t im e zone in t he Unit ed St at es st art s using Daylight Saving Tim e at 2 A.M.
local t im e. So in t he Unit ed St at es you would select Se con d, Su n da y, M a r ch and 2 :0 0 .
Daylight Saving Tim e st art s in t he European Union on t he last Sunday of March. All of t he
t im e zones in t he European Union st art using Daylight Saving Tim e at t he sam e m om ent
( 1 A.M. GMT or UTC) . So in t he European Union you would select La st , Su n da y, M a r ch
and t he last field depends on your t im e zone. I n Germ any for inst ance, you would select
2 :0 0 because Germ any's t im e zone is one hour ahead of GMT or UTC ( GMT+ 1) .
End Dat e Configure t he day and t im e when Daylight Saving Tim e ends if you select ed D a yligh t
Sa ving Tim e . The t im e field uses t he 24 hour form at . Here are a couple of exam ples:
Daylight Saving Tim e ends in t he Unit ed St at es on t he last Sunday of Oct ober. Each t im e
zone in t he Unit ed St at es st ops using Daylight Saving Tim e at 2 A.M. local t im e. So in t he
Unit ed St at es you would select Fir st , Sun da y, N ove m be r and 2 :0 0 .
Daylight Saving Tim e ends in t he European Union on t he last Sunday of Oct ober. All of
t he t im e zones in t he European Union st op using Daylight Saving Tim e at t he sam e
m om ent ( 1 A.M. GMT or UTC) . So in t he European Union you would select La st , Su n da y,
Oct obe r and t he last field depends on your t im e zone. I n Germ any for inst ance, you
would select 2 :0 0 because Germ any's t im e zone is one hour ahead of GMT or UTC
( GMT+ 1) .
Chapter 6 Basic Setting
GS3700/XGS3700 Series User's Guide
62