User Manual

Boomer II User Manual & Integrator’s Guide
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Message Routing and Migration
BM210012WT09 95 Wavenet Technology
DataTAC
System Type
Header Fields
(Not Shown)
Data Header
Offset
Data Header Data
4000 . . . 03 TE1 Hello World
5000 . . . 03 TE1 Hello World
6000 . . . 03 TE1 Hello World
In this example the data header TE1 is a sample. The data header could
also have been RO3, TX4, SS2, or many others, depending on the
configuration of the network infrastructure.
The DataTAC 4000 and 6000 systems use 1 as a pointer to a
destination and TE to refer to an application ID. Conversely, the
DataTAC 5000 system uses TE as a pointer to a destination and 1 as an
extra byte, which only has meaning if active carrier management
(ACM) is used. Since SCR does not require ACM, this byte can be
ignored.
Note: Using this example, for cross compatible applications (to all
DataTAC systems), set a data header offset of 03 (ASCII) and set the
same data header for all three systems (in this example, TE1).
Consider another example. A DataTAC 4000 or 6000 system could use
a data header of XY3 for one message and a data header of AB3 for
another message. According to current system implementations of the
session ID feature, both SDUs would go to the same destination
because the third byte (the pointer to the destination) is the same.
SCR Header Charts
The charts in this section allow you to compare SCR syntax across all
three DataTAC systems. Each chart displays a different set of headers
based on message type. For example, the length prefix on the DataTAC
5000 system header and much of the DataTAC 4000 system header are
shaded in gray to highlight fields where differences exist. Two of the
data headers are shaded for the same reason, indicating that they differ
in unique ways from the DataTAC 5000 system data header.
Note: All header reserve fields must be set to ASCII 0 (0x30) or binary
NULL (0x00), depending on the format requirements of the field.
The following table shows the terminology of other communications
protocols (for example, Native Control Language), and the SCR header
types.
Other Protocol Terminology SCR Terminology
Command Message Host Request Message
Response Message Host Confirmation Message
Event Message Mobile Information Message.