1 General
1.1 Abbreviations
2
Definitions of facsimile demodulation/remodulation in DCME
3
Functions of the facsimile module
4
Facsimile module structure
5
Facsimile frame assembler/disassembler blocks
5.1 Facsimile data channel
5.2 Facsimile module frame
5.2.1 Facsimile control channel
5.3 Facsimile blocks
5.3.1 FEC encoding
5.4 Facsimile transport channels
6
Facsimile module controller
6.1 Common control function
6.1.1 Communication with the ADF
6.1.2 Other communication functions
6.1.3 Capacity management
6.1.4 FCH management
6.1.5 Demodulator/remodulator pool management
6.2 Facsimile Channel Handler (FCH)
6.2.1 FCH requirements
6.2.2 FCH protocol
7
Use of the facsimile control channel
7.1 Message field structure
7.2 Message transmission procedure
7.3 Service channel
8
Timing and delay requirements
8.1 Clock difference compensation
8.1.1 Demodulator side
8.1.2
Remodulator side
8.2 Critical time gaps of the T.30 signals
8.2.1 Demodulator side requirements
8.2.2 Remodulator side requirements
8.3 Front-End Delay (FED) buffer
9
Multi-clique and
multi-destination operation
10 Facsimile module operation and
maintenance
10.1 Facsimile module statistics
10.2 Facsimile module configuration data
10.3 Error count
10.4 FEC activation
11 Required DCME modifications
11.1 Facsimile data handling
11.2 Changes in the DCME processes
Annex A – Examples of FCH protocol exchanges
A.1 SF-T.30 cases with matched capabilities
A.2 NSF-T.30 proprietary cases with matched capabilities
A.3 SF-T.30 cases with unmatched capabilities
A.4 NSF-T.30 proprietary cases with unmatched capabilities
Annex B – Formal description of the facsimile module controller
B.1 Introduction
B.2 FMC interfaces
B.3 Internal structure of the FMC
B.4 Common control function (CCF)
B.5 FCH
Supplement No. 1 – Dimensioning example for facsimile compression
S.1 Introduction
S.2 Assumptions
S.3 Method