Comtech EF Data CDM-760 - Page 9

Table of Contents Revision 4
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760/CD-CDM760
iv
1.2.2 Dimensional Envelope............................................................................................................... 1–4
1.2.3 Physical Features ....................................................................................................................... 1–5
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 ................................................................................................................................ 1–7
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 ....................................................................................................... 1–9
1.3.1 System Specifications ................................................................................................................ 1–9
1.3.2 Environmental and Physical .................................................................................................... 1–10
1.3.3 Base Unit Connectors .............................................................................................................. 1–10
1.3.4 Test Functions ......................................................................................................................... 1–10
1.3.5 Modulator (Dual IF) ................................................................................................................. 1–10
1.3.6 Demodulator (Dual IF) ............................................................................................................ 1–11
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) ..................................................................................... 1–16
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