User's Manual
Figure 64: Sample Televic protocol data
Televic is an extended two-direction protocol, which provides a number of protocol rules to
keep the communication secure; for example, through sequencing each packet, requesting
acknowledge string, handshake through clear-string, return of feedback on message delivery
through what is called terugmelding string, error detection through checksum, and so on. Refer
to the protocol specifications for details on Televic protocol.
Regarding configuration, the following details are important:
The datastream contains a pager indication. This pager indication is used as a group
indication.
Alarms can either be sent as type 1 (*SET of an alarm that has a *RESET type 0), type 0
(*RESET of an alarm that was previously *SET through code 1) and finally a type 2 (*SET of
an alarm that does receive a *RESET). As a result, messages can be *SET or *RESET with
remove after *SENT or remove after *RESET.
The DECT Messenger implements three distinct alarm descriptions.
1. The highest priority is assigned to alarm types that are configured through the
specified length L:xx of the alarm text (For example, L:03 : NUR, ASS, SAN, REA,
MUG, and so on). If this definition is found, the alarm attributes are fetched there.
2. When the first definition is unavailable, alarm types are fetched equal to the tone
code (0, 1, 2, 3, 4, 5, 6, 7, 8, 9). If this definition is found, the alarm attributes are
fetched there.
3. As the last option, the alarm types are fetched through *OTHER special value. If
this definition is found, alarm attributes are fetched there. In absence of any of the
three definitions, the alarms are ignored.
The alarm message is retrieved from the datastream (NUR PAL, POORT 100, and so on).
TELEVIC
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