Physical Description .................................................................................................................................. 1-3

1.3.2

Modem Compatibility .............................................................................................................................. 1-4

1.3.3

Ethernet/IP Interface Compatibility ........................................................................................................ 1-4

1.3.4

Verification ................................................................................................................................................. 1-4

1.3.5

Updating Modem Firmware .................................................................................................................... 1-5

1.3.6

Standard Data Interfaces ......................................................................................................................... 1-5

1.3.7

Optional Hardware and Accessories ....................................................................................................... 1-6

1.3.8

Fully Accessible System Topology (FAST) ............................................................................................... 1-7

1.3.9

Supporting Hardware and Software ....................................................................................................... 1-9

1.3.10

Physical Features ..................................................................................................................................... 1-10

1.3.10.1 Dimensional Envelope ....................................................................................................................... 1-10

1.3.10.2 Front Panel .......................................................................................................................................... 1-11

1.3.10.3 Rear Panel ........................................................................................................................................... 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 ........................................................................................................................................ 1-21

1.4.4

Automatic Uplink Power Control (AUPC) ............................................................................................. 1-22

1.4.5

DoubleTalk

1.4.6

Framing Summary ................................................................................................................................... 1-23

1.4.7

Data Rate Ranges .................................................................................................................................... 1-24

1.4.8

VersaFEC Adaptive Coding and Modulation (ACM) ............................................................................ 1-29

1.4.9

Miscellaneous .......................................................................................................................................... 1-30

1.4.10

Approvals ................................................................................................................................................. 1-30

CHAPTER 2.

INSTALLATION ............................................................................................. 2-1

2.1

Unpacking and Inspecting the Shipment .............................................................................. 2-1

2.2

Installing Into a Rack Enclosure ........................................................................................... 2-2

2.2.1

Installing the Optional Rear-Mounting Support Brackets Kits ............................................................. 2-4

2.3

Configuring the CDM-625A .................................................................................................. 2-5

2.4

Selecting the Internal IF Loop .............................................................................................. 2-5

2.5

Connecting the External Cables ........................................................................................... 2-5

REAR PANEL CONNECTORS AND PINOUTS ............................................ 3-1

CHAPTER 3.

3.1

CDM-625A Rear Panel Overview .......................................................................................... 3-1

3.2

CDM-625A Cable Connections ............................................................................................. 3-2

3.2.1

IF Connection Group ................................................................................................................................. 3-3

3.2.1.1

Rx IF Connectors ................................................................................................................................... 3-3

3.2.1.2

Tx IF Connectors ................................................................................................................................... 3-3

Carrier- in-Carrier

(CnC) ................................................................................................... 1-22

Revision 0

MN-CDM625A

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