length of sensing cable. Regions are dened by a low limit (starting distance) and a high
limit (ending distance). Regions can contain the entire circuit, or only a part of the circuit,
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H56874 4/03 www.tycothermal.com +1 (650) 474-7400 27
TTDM-128
User Manual
Example of a region setup for a 1,000 meter cable:
Region No. 1 2 3 4
Low Limit 0 m 251 m 501 m 751 m
High Limit 250 m 500 m 750 m 1,000 m
ID Room A Hall Room C Room D
Region relay 50-01 50-02 50-03 50-04
Trouble relay 50-06 50-06 50-06 50-06
Service relay 50-07 50-07 50-07 50-07
Events History Log
One extremely useful function provided by the TTDM is the ability to record a series of
events. The TTDM module keeps track of a list of up to 1,024 events (if 1,024 events
are already stored, the oldest event is discarded as a new event is recorded). Events
in the events history log may be specic to one SIM channel or may refer to the TTDM
itself (such as user interactions). For a full list of event types, please refer to “Appendix 1
- Events Glossary”.
ACCESSING THE EVENTS HISTORY LOG
► From the Current Events/Status display, press MENU
► Use the arrow keys to select Events History, then press ENTER.
► Use the UP and DOWN arrow keys to scroll through the events history log. The events will be
displayed in chronological order, with the most recent event displayed rst.
Hint: To quickly move to a view of the most recent event, press the LEFT arrow key. To move
to the oldest event, press the RIGHT arrow key.
TYPICAL TTDM EVENT DISPLAY
Events History
Alarm Silenced
HH:MM DD-MON-YYYY
TYPICAL SIM EVENT DISPLAY
Events History
CH01 USER_LABEL_0001
Leak 237 ft
HH:MM DD-MON-YYYY
An arrow at the bottom right-hand corner indicates that there are further events “below”
(occuring before) the one being displayed.