Radyne DMD20 Installation And Operation Manual page 10

DMD20/DMD20 LBST Universal Satellite Modem Table of Contents
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 DMD20 ____________________________ 3-21
3.14.2 Reed-Solomon Code Rate _______________________________________ 3-21
3.14.3 Interleaving___________________________________________________ 3-21
3.15 DMD20 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
Section 4 - User Interfaces
4.0 User Interfaces ___________________________________________________ 4-1
4.1 Front Panel User Interface __________________________________________ 4-1
4.1.1 LCD Front Panel Display __________________________________________ 4-2
4.1.2 Cursor Control Arrow Keys ________________________________________ 4-2
4.1.3 Numeric Keypad_________________________________________________ 4-2
4.1.4 Front Panel LED Indicators ________________________________________ 4-3
4.2 Parameter Setup __________________________________________________ 4-3
4.3 Front Panel Control Screen Menus____________________________________ 4-4
4.3.1 Main Menus ____________________________________________________ 4-4
4.3.2 Modulator Menu Options and Parameters _____________________________ 4-5
TM103 - Rev. 2.5 ix