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Comtech EF Data CDM-760 User Manual

Page 8

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Table of Contents

Revision 2

CDM-760 Advanced High-Speed Trunking Modem

MN-CDM760 / CD-CDM760

iv

1.2.3.1

Front Panel Features ....................................................................................................................... 1–5

1.2.3.2

Rear Panel Features ......................................................................................................................... 1–6

1.2.3.2.1

Rear Panel Standard Features .................................................................................................... 1–6

1.2.3.2.2

Rear Panel Optional Features .................................................................................................... 1–7

1.2.4

Verification ............................................................................................................................................... 1–8

1.2.5

On-site Firmware Updates ....................................................................................................................... 1–8

1.2.6

On-site Operational Upgrades ................................................................................................................. 1–8

1.2.7

Monitor and Control Interfaces ............................................................................................................... 1–9

1.3

CDM-760 Specifications ....................................................................................................................... 1–10

1.3.1

System Specifications ............................................................................................................................. 1–10

1.3.2

Environmental and Physical ................................................................................................................... 1–10

1.3.3

Base Unit Connectors ............................................................................................................................. 1–11

1.3.4

Test Functions ........................................................................................................................................ 1–11

1.3.5

Modulator (Dual IF) ................................................................................................................................ 1–11

1.3.6

Demodulator (Dual IF) ............................................................................................................................ 1–12

1.3.6.1

Es/No Performance ....................................................................................................................... 1–13

1.3.7

Adaptive Coding and Modulation (ACM) ............................................................................................... 1–15

1.3.8

DoubleTalk

®

Carrier-in-Carrier

®

(CnC) ..................................................................................................... 1–15

1.3.9

Regulatory Compliance .......................................................................................................................... 1–16

CHAPTER 2.

INSTALLATION ........................................................................................... 2–1

2.1

Unpack and Inspect the Equipment ....................................................................................................... 2–1

2.2

Install the Unit into a Rack Enclosure .................................................................................................... 2–2

2.2.1

Install the Optional Rear Support Brackets Kit ......................................................................................... 2–4

2.2.2

Install the Optional Bearingless Rack Slide Set ........................................................................................ 2–6

CHAPTER 3.

REAR PANEL CONNECTIONS ....................................................................... 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

3.1.1.4

Type ‘F’ ............................................................................................................................................ 3–2

3.1.1.5

Type ‘SMA’ (Subminiature Version ‘A’) ........................................................................................... 3–2

3.1.2

D-Subminiature Cable Connections ......................................................................................................... 3–3

3.1.3

RJ-45, RJ-48 Cable Connections ............................................................................................................... 3–3

3.2

CDM-760 Cabling Connections .............................................................................................................. 3–4

3.2.1

IF Connector Group .................................................................................................................................. 3–5

3.2.1.1

Rx Connectors .................................................................................................................................. 3–5

3.2.1.2

Tx Connectors .................................................................................................................................. 3–5

3.2.1.3

J10 | TX MON Connector, Type ‘SMA’ ............................................................................................. 3–5

3.2.2

Utility Connector Group ........................................................................................................................... 3–6

3.2.2.1

J1 | ALARM Connector, DB-15M ..................................................................................................... 3–6

3.2.2.2

J2 | REDUNDANCY Connector, DB-9F .............................................................................................. 3–7

3.2.2.3

J3 | REMOTE Connector, DB-9M ..................................................................................................... 3–7

3.2.2.4

J4 | MGMT Connector, RJ-45F......................................................................................................... 3–8