CDM-625A Advanced Satellite Modem MN-CDM625A / CD-MN-CDM625A
Table of Contents Revision 4
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1.3 Features .............................................................................................................................1–4
1.3.1 Physical Description..................................................................................................................................1–4
1.3.2 Modem Compatibility ..............................................................................................................................1–4
1.3.3 Verification................................................................................................................................................. 1–4
1.3.4 Updating Modem Firmware....................................................................................................................1–4
1.3.5 Standard Data Interfaces ......................................................................................................................... 1–5
1.3.6 Optional Hardware and Accessories....................................................................................................... 1–5
1.3.7 Fully Accessible System Topology (FAST)...............................................................................................1–7
1.3.8 Supporting Hardware and Software.......................................................................................................1–9
1.3.9 Physical Features.....................................................................................................................................1–10
1.3.9.1 Dimensional Envelope .......................................................................................................................1–10
1.3.9.2 Front Panel Features..........................................................................................................................1–11
1.3.9.3 Rear Panel Features ...........................................................................................................................1–12
1.4 Summary of Specifications ................................................................................................1–13
1.4.1 Modulator................................................................................................................................................1–13
1.4.2 Demodulator ...........................................................................................................................................1–16
1.4.3 Data Interfaces ........................................................................................................................................1–22
1.4.4 Automatic Uplink Power Control (AUPC).............................................................................................1–22
1.4.5 DoubleTalk® Carrier- in-Carrier®(CnC)...................................................................................................1–23
1.4.6 Framing Summary...................................................................................................................................1–24
1.4.7 Data Rate Ranges ....................................................................................................................................1–25
1.4.8 VersaFEC Adaptive Coding and Modulation (ACM)............................................................................1–30
1.4.8.1 VersaFEC ACM ....................................................................................................................................1–30
1.4.8.2 VersaFEC-2 ACM.................................................................................................................................1–31
1.4.9 Miscellaneous..........................................................................................................................................1–34
1.4.10 Approvals .................................................................................................................................................1–34
CHAPTER 2. INSTALLATION.............................................................................................2–1
2.1 Unpack and Inspect the Shipment .......................................................................................2–1
2.2 Install the Modem Into a Rack Enclosure .............................................................................2–2
2.2.1 Install the Optional Rear-Mounting Support Brackets Kits ..................................................................2–4
2.3 Configure the Modem .........................................................................................................2–5
2.4 Verify Modem Operation ....................................................................................................2–5
2.5 Connect the External Cables ................................................................................................2–5
CHAPTER 3. REAR PANEL CONNECTORS AND PINOUTS ............................................3–1
3.1 Cabling Connection Types ...................................................................................................3–1
3.1.1 Coaxial Cable Connections.......................................................................................................................3–1
3.1.1.1 Type ‘BNC’ .............................................................................................................................................3–2
3.1.1.2 Type ‘TNC’ ............................................................................................................................................. 3–2
3.1.1.3 Type ‘N’.................................................................................................................................................. 3–2
