DMD2050 Universal Satellite Modem
Table of Contents
TM110 – Rev. 1.3
ix
3.9 Loop Timing ____________________________________________________ 3-12
3.9.1 Transmit (MIL-188-114A, RS-422)__________________________________ 3-13
3.9.2 G.703 Interface or Asymmetrical Data Rates__________________________ 3-13
3.9.3 Receive ______________________________________________________ 3-13
3.10 Drop and Insert (D&I) ____________________________________________ 3-13
3.10.1 Drop Only ____________________________________________________ 3-15
3.10.2 Insert Only ___________________________________________________ 3-15
3.11 Mode Selection _________________________________________________ 3-16
3.11.1 PCM-30 _____________________________________________________ 3-16
3.11.2 PCM-30C ____________________________________________________ 3-16
3.11.3 PCM-31 _____________________________________________________ 3-17
3.11.4 PCM-31C ____________________________________________________ 3-17
3.11.5 T1-D4/T1-D4-S________________________________________________ 3-17
3.11.6 T1-ESF/T1-ESF-S _____________________________________________ 3-17
3.12 Multidestinational Systems ________________________________________ 3-17
3.13 Drop and Insert Mapping__________________________________________ 3-18
3.14 Reed-Solomon Codec____________________________________________ 3-20
3.14.1 Reed-Solomon Operation in the DMD2050 __________________________ 3-21
3.14.2 Reed-Solomon Code Rate _______________________________________ 3-21
3.14.3 Interleaving___________________________________________________ 3-21
3.15 DMD2050 Automatic Uplink Power Control (AUPC Operation) ____________ 3-22
3.16 Asynchronous Overhead Operation (Framing/Multiplexer Capability) _______ 3-24
3.17 Standard IBS Mode______________________________________________ 3-25
3.18 Asynchronous Multiplexer Mode ___________________________________ 3-26
3.19 ESC Backward Alarms ___________________________________________ 3-26
3.19.1 To Disable the ESC Backward Alarms______________________________ 3-27
3.20 Satellite Control Channel (SCC) ____________________________________ 3-27
3.20.1 SCC Framing Structure _________________________________________ 3-27
3.20.2 Aggregate Data Rate ___________________________________________ 3-28
3.20.3 Overhead Rate Comparison _____________________________________ 3-28
3.20.4 Actual Overhead Rate Calculation _________________________________ 3-29
3.21 SCC OVERHEAD CHANNEL SETUP _______________________________ 3-30
3.22 Locating the DMD2050 ID Code Operational Procedure _________________ 3-31
Summary of Contents for DMD2050
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Page 16: ...Table of Contents DMD2050 Universal Satellite Modem xvi TM110 Rev 1 3...
Page 19: ...DMD2050 Universal Satellite Modem Introduction TM110 Rev 1 3 1 1...
Page 25: ...Installation DMD2050 Universal Satellite Modem 2 6 TM110 Rev 1 3...
Page 57: ...Theory of Operation DMD2050 Universal Satellite Modem 3 32 TM110 Rev 1 3...
Page 119: ...User Interfaces DMD2050 Universal Satellite Modem 4 62 TM110 Rev 1 3...
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Page 177: ...Technical Specifications DMD2050 Universal Satellite Modem 7 26 TM110 Rev 1 3...
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Page 196: ...DMD2050 Universal Satellite Modem Appendix D TM110 Rev 1 3 D 7...
Page 208: ...DMD2050 Universal Satellite Modem Appendix F TM110 Rev 1 3 F 7...