Comtech EF Data CDM-625 - User Manual

Part Number MN-CDM625 Revision 13
IMPORTANT NOTE: The information contained in this document supersedes all previously published
information regarding this product. Product specifications are subject to change without prior notice.
CDM-
625
Advanced Satellite Modem (18 kbps – 25 Mbps)
Installation and Operation Manual
For Firmware Version 2.3.1 or higher

Summary

PREFACE

Warnings, Cautions, and Notes

Explains the meaning of warning and caution symbols.

Safety and Compliance

Covers electrical safety, compliance, and grounding requirements.

Electrical Installation

Details electrical installation requirements for AC and DC options.

Battery

Contains a lithium battery; warnings about replacement and disposal.

Fuses

Information on replacing fuses with the correct type and rating.

Operating Environment

Lists extreme operating conditions to avoid.

Warranty Policy

Details product warranty terms, repair, and return procedures.

Limitations of Warranty

Exclusions from warranty coverage and conditions.

Getting Help

Provides contact information for technical support and customer service.

Contacting Comtech EF Data

Contact details for technical support, customer service, and website.

Returning a Product for Upgrade or Repair

Step-by-step instructions for returning a product for service.

Chapter 1. INTRODUCTION

1.1 Overview

Provides a general introduction to the CDM-625 modem and its features.

1.2 Functional Description

Describes the modem's IF and data interfaces and signal processing.

1.3 Features

Details the physical and functional features of the CDM-625.

1.3.3 Ethernet;IP Interface Compatibility

Details compatibility between CDM-625 and CEFD IP Modem configurations.

1.3.5 Updating Modem Firmware

Instructions for updating modem firmware via Ethernet.

1.3.6 Standard Data Interfaces

Lists the standard data interfaces supported by the CDM-625.

1.3.8 Fully Accessible System Topology (FAST)

Explains the FAST system for on-location upgrade of features.

1.3.10.2 Front Panel

Describes the front panel features: LED Indicators, Keypad, and VFD.

1.3.10.3 Rear Panel

Details the rear panel connectors and pinouts for various interfaces.

1.4 Summary of Specifications

Provides a summary of the modem's technical specifications.

1.4.1 Modulator

Details the modulator specifications including modulation, symbol rate, and operating frequency.

1.4.2 Demodulator

Details the demodulator specifications including data rate, FEC, and acquisition.

1.4.3 Data Interfaces

Lists and describes the supported data interfaces.

1.4.4 Automatic Uplink Power Control (AUPC)

Details the AUPC operating mode and target Eb/No range.

1.4.5 DoubleTalk Carrier-in-Carrier (CnC)

Describes the CnC operating mode, PSD ratio, and latency.

1.4.7 Data Rate Ranges

Lists data rate ranges for various FEC and modulation modes.

1.4.8 VersaFEC Adaptive Coding and Modulation (ACM)

Details VersaFEC ACM specifications, including ModCods and latency.

Chapter 2. INSTALLATION

2.1 Unpacking and Inspecting the Shipment

Instructions for unpacking and inspecting the equipment shipment.

2.2 Installing Into a Rack Enclosure

Step-by-step guide for mounting the CDM-625 into a rack enclosure.

2.3 Configuring the CDM-625

Instructions for configuring the modem using the front panel interface.

2.5 Connecting the External Cables

Guidance on connecting all external cables after configuration.

Chapter 3. REAR PANEL CONNECTORS AND PINOUTS

3.1 CDM-625 Rear Panel Overview

Provides an overview of the modem's rear panel connections.

3.2 CDM-625 Cable Connections

Details the rear panel cabling connections grouped by service function.

3.2.2 Terrestrial Data Connection Group

Details the terrestrial data interface connectors and their functions.

3.2.2.1 Data Interface (DB-25 F)

Provides pinouts for the 25-pin Type 'D' female data interface connector.

3.2.2.2 G.703 Connectors

Describes the G.703 connectors including Balanced and Auxiliary DB-9F.

3.2.3 Utility Connections Group

Details the utility connections including Remote Control and Alarms.

3.3 CDM-625 Ground and Power Connections

Details grounding requirements and power connection options.

3.3.1 Chassis Ground Interface

Explains the chassis ground connection using a #10-32 stud.

3.3.2 Standard 100 V;240 V Alternating Current (AC) Power Interface

Describes the AC power interface, including specifications and accessories.

3.3.3 Optional 48 V Direct Current (DC) Power Interface

Details the DC power interface, including specifications and fuse requirements.

Chapter 4. UPDATING FIRMWARE

4.1 Updating Firmware via Internet

Instructions for downloading and updating firmware via the Internet.

4.3 Firmware Update Procedure

Step-by-step guide for updating the modem firmware.

4.3.1 Getting Started: Preparing for the Firmware Download

Prepares the user PC and modem for firmware download.

4.3.2 Downloading and Extracting the Firmware Update

Instructions for downloading and extracting firmware files.

4.3.3 Executing the Ethernet FTP Upload Procedure

Procedure for transferring firmware files via FTP using the Ethernet interface.

Chapter 5. FRONT PANEL OPERATION

5.1 Introduction

Introduces the front panel features: LED Indicators, Keypad, and VFD.

5.1.2 Keypad

Describes the function of the front panel keypad keys.

5.1.3 Vacuum Fluorescent Display (VFD)

Details the VFD display characteristics and screen saver.

5.2 SELECT: (Main) Menu

Explains the main menu structure and navigation.

5.2.1 SELECT: Configuration Menus

Provides access to configuration submenus for modem parameters.

5.2.1.1 CONFIG: All

Guides through complete modem configuration on a step-by-step basis.

5.2.1.2 CONFIG: Mode

Used to select Frame Type and Data Format for Tx and Rx.

5.2.1.3 CONFIG: Tx

Defines the Tx configuration parameters on a basis.

5.2.1.4 CONFIG: Rx

Defines the Rx configuration parameters on a basis.

5.2.1.5 CONFIG: Clocks

Used to select Tx-Clocking, Rx-Buffer/Clock, or External Reference.

5.2.1.6 CONFIG: D&I (Drop & Insert)

Used to select (Quad) Drop & Insert options.

5.2.1.7 CONFIG: ACM (Adaptive Coding and Modulation) (IP-ACM Mode Only)

Used to configure ACM operating parameters.

5.2.1.8 CONFIG: CnC

Used to select DoubleTalk Carrier-in-Carrier (CnC) options.

5.2.1.9 CONFIG: EDMAC

Used to select EDMAC options.

5.2.1.10 CONFIG: Misc

5.2.1.11 CONFIG: Mask

5.2.1.12 CONFIG: Remote (Remote Control)

5.2.1.13 CONFIG: IP

5.2.2 SELECT: Test Menus

5.2.3 SELECT: Monitor Menus

5.2.5 SELECT: Store;Ld (Store;Load) Menus

5.2.6 SELECT: Utility Menus

5.2.8 SELECT: FAST Menus

Chapter 8. AUTOMATIC UPLINK POWER CONTROL (AUPC)

8.1 Introduction

8.2 Setting AUPC Parameters

Details parameters for AUPC: Target Eb/No, Max Range, Alarm, Demod Unlock.

8.4 Monitoring

Chapter 17. ADAPTIVE CODING AND MODULATION (ACM)

17.1 Introduction

17.3 Requirements for ACM

17.6 VersaFEC ACM

17.8 Configuring VersaFEC ACM in the CDM-625

Step-by-step guide for configuring VersaFEC ACM via the front panel.

17.9 Monitoring ACM performance

17.10 ACM Congestion Control

17.11 Notes and Recommendations

17.12 VersaFEC ACM - Summary of Specifications

Chapter 18. IP PACKET PROCESSOR OPTION

18.1 Introduction

18.2 IP Packet Processor Features

18.5 IP Packet Processor Field Upgrade Procedure

Describes the procedure for field upgrading the IP Packet Processor.

Chapter 19. CARRIER ID (METACARRIER)

19.1 Introduction

19.3 Functional Description

19.4 Configuring the CDM-625 for Carrier ID Operation

Steps to enable Carrier ID and create a MetaCarrier Custom Message.

Appendix C. FAST ACTIVATION PROCEDURE

C.1 FAST System Overview

C.2 FAST Activation Procedure

Details the procedure for activating FAST features.

C.2.1 FAST Activation via the CDM-625 Front Panel

Instructions for activating FAST features using the front panel.

C.2.2 FAST Activation via the CDM-625 Web Server (HTTP) Interface

Instructions for activating FAST features via the Web Server interface.

Appendix D. REMOTE CONTROL

D.1 Introduction

D.2 EIA-485

D.4 Basic Protocol

D.5 Remote Commands and Queries

Provides lists of remote commands and queries for modem control.

Appendix E. TELNET COMMAND LINE INTERFACE (CLI) OPERATION

E.1 Overview

E.2 Using the Telnet Command Line Interface (CLI)

Explains CLI menu system and common navigation features.

E.3 Command Line Interface Pages

E.3.1 Home (Main) Menu

E.3.2 Home > Administration Submenu

E.3.3 Home > Modem Submenu

E.3.4 Home > Network Submenu

E.3.5 Home > WAN Submenu

E.3.7 Home > Redundancy Submenu

E.3.8 Home > General Information Submenu

E.3.9 Home > Logs Submenu

Comtech EF Data CDM-625 Specifications