Model: DDU-24/26
Doc. Ref. no. : - m06bom101
Issue no. 09
User’s Manual
Page 41 of 51
6. Connect master clock Ethernet output to RJ-45 Ethernet connector of DDU-24/26. The time should
appear on the display within 60 seconds of application of time code as DDU-24/26 synchronizes at
every Query Interval time seconds with time source. If the time code signal is lost or disconnected,
then DDU-24/26 will continue to display time based on its internal RTC, until the time code signal is
returned.
7.
RS232/485 Signal as Output:
If you are selected to transmit NMEA
-
0183[RMC] Format output frame only the Time and
Data field is Present and remaining Data Field transmitting as Zeros from the DDU24/26 with
help of selection in retransmitting configuration.
If you are selecting
and
option in retransmission configuration then it working as
output terminal.
NOTE: If DDU-24/26 is in sync using Serial [RS232/RS485] than do not use Serial
[RS232/RS485] for Retransmission.
8.
Wireless Output:
If you are selected to transmit Wireless output frame from the DDU-24/26 with help of selection
in retransmitting configuration.
If you are selecting
and
option in retransmission configuration then it Transmitting
Wireless output Frame.
Then you have to select RF transmit channel which for Transmitting Wireless Output Frame.
This unit work as Master Clock for other unit which is Synchronize with this Unit in the range of
it.
9. If the clock is unable to achieve a time code lock see the section entitled
Troubleshooting Tips
.
10. For Serial Communication time codes date must be encoded to the standard specification. These
specifications are also supported by
Masibus
Master Clock systems
[see Communication
Guidelines Section 8.2]
.
7.1.1 Lock/Unlock Indication for Time/Date Display
The colons of the clock display will flash if the time displayed is not locked to time code of GPS.
When time code is present and decoded properly the colons will remain steady-on.
You can enable or Disable blinking of colon‟s and DP in unlock condition using Key configuration as
shown in section 6.2.3.11.
-
In case of Date in place of colons “dp” after 2
nd
digit will provide lock/unlock information.
7.1.2 AM/PM Indication for Time Display
If the DDU-24/26 is configured for a 12-hour time display mode an AM/PM indicator will appear in the
top left corner of the display during the PM hours. You will find decimal point
ON
when clock will be
in PM hours in 12-hour mode.
7.1.3 Display Format
In DDU-24/26 , have 3 option configurable
1. Time Display
2. Date Display
3. Alternate Date & Time Display, which Display Both Time and Date Display. Date will
be displayed at 18-20 seconds, 38-40 seconds and 58-60 seconds. These Display
settings can be done by Key Configuration.
There are two Time Format selectable
1. 12 hour format
2. 24 hour format
There are 2 Date format given for Display
For DDU-24:
1. DD/MM
2. MM/DD
