User manual
Using the NTPTime Service
252
33002479 06 07/2008
Customizing 
Time Zone 
Parameters
If you want a time zone not listed in the time zone table:
Step Action Comment
1 Write the text rules for the custom time zone.
2 Using an FTP client, store your rules in the file:
/FLASH0/wwwroot/conf/NTP/customrules
user ID: ntpupdate
password: ntpupdate
Root directory to store 'customrules' is set by the FTP 
server as: 
/FLASH0/wwwroot/conf/NTP
3 When the rules are written, choose the drop down 
menu on the NTP Configuration web page, and 
configure (or reboot) the module by selecting
Time Zone = Custom
The NTP component looks for customrules, calls the 
tz compiler and generates a new file called 
'tz_custom'. This file is binary file and should not be 
edited.
If the tz compiler detects a syntax error in 
customrules, the error is logged in the file:
/FLASH0/wwwroot/conf/NTP/error.log
1. NTP component is not launched
2. NTP Status field in diagnostic web page displays 
NOT OK.
4 If you want more information, the syntax to write those rules along with a few examples are found in the 
module in:
/FLASH0/wwwroot/conf/NTP/instructions.txt










