Radyne DMD20 - Page 48

Table of ContentsTable of Contents Revision 14
DMD20/DMD20LBST Universal Satellite Modem MN-DMD20-20LBST
xii
H.1.2 Insert Only ...................................................................................................................... H–3
H.1.3 Mode Selection ............................................................................................................... H–4
H.1.3.1 PCM-30 ...................................................................................................................... H–4
H.1.3.2 PCM-30C .................................................................................................................... H–4
H.1.3.3 PCM-31 ...................................................................................................................... H–4
H.1.3.4 PCM-31C .................................................................................................................... H–4
H.1.3.5 T1-D4/T1-D4-S ........................................................................................................... H–5
H.1.3.6 T1-ESF/T1-ESF-S ....................................................................................................... H–5
H.1.4 Multidestinational Systems .............................................................................................. H–5
H.1.5 Drop and Insert Mapping ................................................................................................. H–6
H.2 Configuring the Modem for Drop and Insert ...................................................................... H–8
H.2.1 Data Rate ........................................................................................................................ H–8
H.2.2 Operational Network Specification .................................................................................. H–9
H.2.3 Terrestrial Framing - Drop Mode/Insert Mode ................................................................. H–9
H.2.3.1 Insert Terrestrial Frame Source .................................................................................... H–9
H.2.4 D&I Sample Configurations and D&I Clock Setup Options ........................................... H–10
H.3 D&I Maps and Map Editing ............................................................................................... H–13
APPENDIX I. EFFICIENT DROP AND INSERT (D&I).................................................I–1
I.1 Introduction ............................................................................................................................I–1
I.2 Prerequisite .............................................................................................................................I–1
I.3 Efficient Drop & Insert Mode ................................................................................................I–2
I.3.1 Calculating the Required Satellite Bandwidth ........................................................................ I–3
I.3.2 Calculating the Basic Efficient D&I Rate .............................................................................. I–3
I.3.3 Calculating the Efficient D&I Rate with E1 Signaling ........................................................... I–3
I.3.4 Calculating the Efficient D&I Rate with Enhanced Asynchronous Overhead ......................... I–3
I.3.4.1 Summary and Examples: ............................................................................................... I–4
APPENDIX J. ETHERNET DATA INTERFACE SETUP ............................................. J–1
J.1 Configure the modem to use the Ethernet Data Interface (Optional) .................................. J–1
J.1.1 Ethernet Flow Control ...........................................................................................................J–1
J.1.1.1 Half-Duplex Flow Control .............................................................................................J–2
J.1.1.2 Full-Duplex Flow Control..............................................................................................J–2
J.1.2 Ethernet Daisy Chain ............................................................................................................J–2
J.1.3 Ethernet QOS Type ...............................................................................................................J–2
J.1.4 Ethernet QOS Queue .............................................................................................................J–2
J.1.5 Set up the Ethernet Bridge to operate like a FIFO ..................................................................J–3
J.1.6 Packet Statistics ....................................................................................................................J–4