Overview .................................................................................................................................................... L–8

L.5.2

Requirements for Field Upgrade ............................................................................................................. L–8

L.5.3

Field Upgrade Procedure ......................................................................................................................... L–9

APPENDIX M. VERSAFEC / VERSAFEC-2 ACM (ADAPTIVE CODING AND MODULATION)

OPTION

.................................................................................................................... M–1

M.1

Overview .......................................................................................................................... M–1

M.2

Background ...................................................................................................................... M–2

M.3

Requirements for ACM ...................................................................................................... M–3

M.4

An Existing Satellite ACM Scheme ...................................................................................... M–5

M.5

Disadvantages of DVB-S2 .................................................................................................. M–5

M.6

VersaFEC ACM .................................................................................................................. M–6

M.6.1

VersaFEC ACM Latency .......................................................................................................................... M–8

M.6.2

Configuring VersaFEC ACM in the CDM-625A ..................................................................................... M–9

M.7

VersaFEC-2 ACM .............................................................................................................. M–12

M.7.1

VersaFEC-2 ACM latency ...................................................................................................................... M–15

M.7.2

Configuring VersaFEC-2 ACM in the CDM-625A ............................................................................... M–16

M.8

Monitoring ACM Performance .......................................................................................... M–18

M.9

ACM Congestion Control .................................................................................................. M–18

M.10

Using ACM with AUPC .................................................................................................. M–19

M.11

Notes and Recommendations ....................................................................................... M–20

M.12

Summary of Specifications ............................................................................................ M–22

M.12.1

VersaFEC ACM ....................................................................................................................................... M–22

M.12.2

VersaFEC-2 ACM ................................................................................................................................... M–23

M.13

Field Upgrade Procedure – VersaFEC-2 Option Card ...................................................... M–25

M.13.1

Overview ................................................................................................................................................ M–25

M.13.2

Requirements for Field Upgrade ......................................................................................................... M–25

M.13.3

Field Upgrade Procedure ..................................................................................................................... M–26

APPENDIX N. IP SUB-MUX ................................................................................................ N–1

N.1

Overview ........................................................................................................................... N–1

N.2

Available Ratios ................................................................................................................. N–1

MN-CDM625A / CD-MN-CDM625A

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