Comtech EF Data SDM-2020 User Manual
Page 16
SDM-2020 Satellite Demodulator
Revision 4
Preface
MN/SDM2020D.IOM
vi
CHAPTER 10. ECL/HSSI INTERFACE ................................................................... 10–1
10.1 ECL/HSSI Interface.............................................................................................................................10–1
10.1.1 Applicable Documents.......................................................................................................................10–2
10.1.2 Description.........................................................................................................................................10–2
10.1.3 Specifications.....................................................................................................................................10–2
10.1.4 Terrestrial
(User) Data Interface........................................................................................................10–3
10.1.4.1 Terrestrial
Transport Protocols .................................................................................................10–3
10.1.4.2 Terrestrial
Signal Definition .....................................................................................................10–6
10.1.4.3 Terrestrial
Extended Signal Definitions....................................................................................10–9
10.1.4.4 Terrestrial Data Rate .................................................................................................................10–9
10.1.4.5 Terrestrial
Electrical Characteristics .......................................................................................10–10
10.1.4.6 Terrestrial Timing ...................................................................................................................10–10
10.1.4.7 Terrestrial TX Clock Phase.....................................................................................................10–12
10.1.4.8 Terrestrial RX Clock Phase.....................................................................................................10–12
10.1.5 Monitor
and
Control Functions........................................................................................................10–12
10.1.5.1 System
Implementation...........................................................................................................10–12
10.1.5.2
Faults.......................................................................................................................................10–13
10.1.5.3 ECL/HSSI
Interface Front Panel Menus.................................................................................10–13
10.1.5.4 ECL/HSSI
Interface
Remote Control Commands...................................................................10–13
CHAPTER 11. G.703 INTERFACE.......................................................................... 11–1
11.1 G.703
Interface .....................................................................................................................................11–1
11.1.1 Applicable Documents.......................................................................................................................11–1
11.1.2 Description.........................................................................................................................................11–2
11.1.3 Specifications.....................................................................................................................................11–4
11.1.4 Receive
Specifications.......................................................................................................................11–5
11.1.4.1 Receive
Data
Rate
1.544 Mbps Specifications .........................................................................11–5
11.1.4.2 Receive
Data
Rate
2.048 Mbps Specifications .........................................................................11–6
11.1.4.3 Receive
Data
Rate
6.312 Mbps Specifications .........................................................................11–6
11.1.4.4 Receive
Data
Rate
8.448 Mbps Specifications .........................................................................11–6
11.1.4.5
Receive Data Rate 32.064 Mbps Specifications .......................................................................11–7
11.1.4.6
Receive Data Rate 34.368 Mbps Specifications .......................................................................11–8
11.1.4.7
Receive Data Rate 44.736 Mbps Specifications .......................................................................11–8
11.1.4.8
Receive Data Rate 51.840 Mbps Specifications .......................................................................11–9
11.1.5 Receive
Doppler/Plesiochronous Buffer Specification......................................................................11–9
11.1.5.1 Buffer Size ................................................................................................................................11–9
11.1.5.2 Frame Structures .......................................................................................................................11–9
11.1.5.3 Buffer Clock Sources ................................................................................................................11–9
11.1.5.4 Buffer Clock Backup ................................................................................................................11–9
11.1.5.5 Buffer Centering .....................................................................................................................11–10
11.1.5.6 General
Receive Specifications...............................................................................................11–10
11.1.6 Interface
Loop - Through.................................................................................................................11–11
11.1.7 Test Modes ......................................................................................................................................11–12
11.1.8 Terrestrial Interface Types...............................................................................................................11–13
11.1.8.1
Send Data (SD), Receive Data (RD), and External Clock Connectors J3, J4,& J6.................11–13
11.1.8.2 Auxiliary
Functions Connector, J5 .........................................................................................11–13
11.1.9 Environmental Requirements...........................................................................................................11–14
11.1.10 G.703
Interface Front Panel Menus .................................................................................................11–14
11.1.11 G,.703
Remote Interface Commands...............................................................................................11–14