Siemens AC43 Manuals

Manuals and User Guides for Siemens AC43. We have 1 Siemens AC43 manual available for free PDF download: User Manual

Siemens AC43 User Manual

Siemens AC43 User Manual (36 pages)

Multiplexer User's Guide  
Brand: Siemens | Category: Cell Phone Accessories | Size: 1.1 MB
Table of contents
Table Of Contents3................................................................................................................................................................
Document History5................................................................................................................................................................
Introduction6................................................................................................................................................................
Supported Products And Related Documents7................................................................................................................................................................
References7................................................................................................................................................................
Term And Abbreviations8................................................................................................................................................................
Multiplexer Protocol - An Overview9................................................................................................................................................................
Product Concept And Architecture9................................................................................................................................................................
Figure 1: Multiplexer Architecture9................................................................................................................................................................
Virtual Channels And At Commands10................................................................................................................................................................
Table 1: Comparison Of Multiplexer Channels10................................................................................................................................................................
Integrating Multiplexer Into The Customer Application11................................................................................................................................................................
Characteristics11................................................................................................................................................................
Basic Requirements11................................................................................................................................................................
Restrictions11................................................................................................................................................................
Dependencies Between Multiplexer Channels And Restrictions Of Use12................................................................................................................................................................
Functions Without Channel Dependencies12................................................................................................................................................................
Timing Conditions13................................................................................................................................................................
Operation Of A Second Physical Serial Interface Asc1 (if Applicable)13................................................................................................................................................................
Multiplexer Control And Signaling Lines14................................................................................................................................................................
Flow Control14................................................................................................................................................................
Figure 2: Logical Flow Control And Rts/cts Signaling Behind The Decoder15................................................................................................................................................................
Escape Sequence16................................................................................................................................................................
Power Saving16................................................................................................................................................................
Bandwidth Of Logical Channels16................................................................................................................................................................
Structure Of The Multiplexer Protocol17................................................................................................................................................................
Introduction Of The Multiplexer Protocol17................................................................................................................................................................
Data Link Layer17................................................................................................................................................................
Figure 3: Data Link Layer17................................................................................................................................................................
Flag Sequence18................................................................................................................................................................
Address Field18................................................................................................................................................................
Table 2: Address Field18................................................................................................................................................................
Table 3: Assignment Of The Dlci18................................................................................................................................................................
Table 4: Use Of The Command/response Bit18................................................................................................................................................................
Control Field19................................................................................................................................................................
Table 5: Coding Of The Control Field19................................................................................................................................................................
Length Indicator20................................................................................................................................................................
Information Field20................................................................................................................................................................
Frame Checking Sequence Field (fcs)20................................................................................................................................................................
State Diagrams21................................................................................................................................................................
Figure 4: Relationship Between The Customer µc And The Gsm Engine µc22................................................................................................................................................................
Figure 5: Mpi - Startup, Dlc Establishment And Information Transfer23................................................................................................................................................................
Figure 6: Mp - Dlc Release And Close Down24................................................................................................................................................................
Start-up Procedure25................................................................................................................................................................
Dlc Establishment25................................................................................................................................................................
Information Transfer25................................................................................................................................................................
Figure 7: Dlc Establishment25................................................................................................................................................................
Figure 8: Information Transfer25................................................................................................................................................................
Dlc Release26................................................................................................................................................................
Close-down Procedure26................................................................................................................................................................
Multiplexer Control Channel26................................................................................................................................................................
Figure 9: Dlc Release26................................................................................................................................................................
Figure 10: Multiplexer Control Channel26................................................................................................................................................................
Multiplexer Close Down (cld)27................................................................................................................................................................
Test Command (test)27................................................................................................................................................................
Modem Status Command (msc)28................................................................................................................................................................
Figure 11: Modem Status Command (msc)28................................................................................................................................................................
Power Saving Control (psc)30................................................................................................................................................................
Figure 12: Power Saving Control (psc)30................................................................................................................................................................
Non-supported Command Response (nsc)31................................................................................................................................................................
Example: Establishing Logical Channels Without Parameter Negotiation32................................................................................................................................................................
Figure 13: Establishing The Multiplexer Control Channel And The Logical Channel32................................................................................................................................................................
Multiplexer Protocol Version Control33................................................................................................................................................................
Multiplexer Protocol Versions34................................................................................................................................................................
Figure 14: Msc As Used In Version 334................................................................................................................................................................
Table 6: Version Differences For Msc34................................................................................................................................................................
Implementing Version Control35................................................................................................................................................................
Troubleshooting35................................................................................................................................................................
Coding Of "testcommand" Message36................................................................................................................................................................
Example Of "testcommand" Message36................................................................................................................................................................
Table 7: Iei Coding36................................................................................................................................................................
Table 8: Coding Of "testcommand" (example)36................................................................................................................................................................

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