Model: DDU-TM-44/46 or DDU-44/46
Doc. Ref. no. : - m06c/om/101
Issue no. 04
Page 29 of 36
User’s Manual
7. OPERATION INFORMATION
7.1 Operation as Time/Date Display [DDU-TM-44/46 or DDU-44/46]
1. Insert the power cord into an appropriate connector inside the clock.
2. Upon Power up of DDU-TM-44/46 or DDU-44/46, The Unit display Slave id Then if unit is wireless
input model then it display the RF receive channel and transmit channel that you are set. Then it will
start displaying time/date from internal RTC otherwise it will start displaying time/date from internal
RTC. After synchronization with master clock, it will take & display the time/date of master device.
DDU-TM-44/46 or DDU-44/46 clock will start display RF receive channel 0 and then start from
00:01:00 and 01/01/15, during first time Power ON & run on internal RTC until synchronizes with
master clock.
3.
RS232/485 Signal as Input:
There is auto frame detection mode is given in DDU-TM-44/46 or DDU-44/46, so no configuration is
required for frame input selection. Connect a source of Serial Communication of GPS to the input
serial connector of DDU-TM-44/46 or DDU-44/46.The time should appear on the display within 60
seconds of application of time code. If the time code signal is lost or disconnected, then DDU-TM-
44/46 or DDU-44/46 will continue to display time based on its internal RTC, until the time code signal
is returned.
4.
Wireless Input:
Set RF receive channel in DDU-TM-44/46 or DDU-44/46, on which channel Wireless master
transmitting the time code signals. You can set receive channel between 0-9 and auto. Auto
option will scan automatically on which channel wireless transmitter transmitting the time
code frames.
If you are select Auto mode in RF receive channel and then after unit power on it will display
RF receive channel which unit previous lock in auto mode.
DDU-TM-44/46 or DDU-44/46 will catch the signal from around 100 meters area with
obstacles in case of master to slave communication or 50 meters in case of DDU-TM-44/46
or DDU-44/46 to DDU-TM-44/46 or DDU-44/46 slave communication.
DDU-TM-44/46 or DDU-44/46 has option of Re-transmission of received signals, set RF
transmit channels between 0 to 9, and DDU-TM-44/46 or DDU-44/46 will transmit the
received signals on set channel, for increasing the Range. If you do not want to re-transmit
then set no option in RF-T key configuration menu.
For Wireless Input Refer
[see Communication Guidelines Section]
5.
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 DDU-TM-44/46
or DDU-44/46 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-TM-44/46 or DDU-44/46 is in sync using Serial [RS232/RS485] than do not use
Serial [RS232/RS485] for Retransmission.
6.
Wireless Output:
If you are selected to transmit Wireless
output
frame from the DDU-TM-44/46 or DDU-44/46
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.
7. If the clock is unable to achieve a time code lock see the section entitled
Troubleshooting Tips
.
8. 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]
.
