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TC3x Multiplexer User's Guide
9 Version Control
9.1 Introduction
The version control for the multiplexer protocol ensures, that TE and the MS side support the same
state of functionality. It ensures upward and downward compatibility of the TC35 and MC35 after the
enhancements.
A new version is introduced when the scope of the multiplexer functionality changes. The
implementation is a subset of the GSM 07.10 standards. New versions are introduced when new
features are implemented. In these cases the version number is increased.
When using the multiplexer protocol sources delivered by Siemens AG, the version check is included
implicitly. When you implement the multiplexer protocol yourself, you need to implement the version
check as well, if you want to use features which are included in later versions. When the multiplexer is
started, the MS and the application negotiate which MP version to use.
For each version of the multiplex protocol release notes are published, which:
•
demonstrate the exact protocol for the version check
•
mention the different release versions
•
document the changes in the protocol/feature set, which have led to the new release version
9.2 Multiplexer versions
The following multiplexer protocol versions exist:
1. No version check
State: multiplexer up to TC35 Release 3.00
2. First version including the version check
State: multiplexer included in TC35 Release 3.10 and higher
3. Additional Features: transparent signals DTR and RTS, escape sequence +++
TE
without version check
with version check
old version
with version check
new version
Figure 25: Possible combinations for version check
TC3x_UG_01_V03.10 - Released
1
without version check
with version check
2
with version check
3
new version
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MS
Multiplexer Protocol
old version
Version:
1
2
3
10.01.2002
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