Summary Of Specifications - Comtech EF Data CDM-710 Installation And Operation Manual

CDM-710 Broadcast Satellite Modem
Introduction
1.4

Summary of Specifications

Description
Type: DVB-S2
DVB-S
DVB-DSNG
Symbol Rate: DVB-S
DVB-S2
DVB-DSNG
Data Rate
Symbol Rate / Data Rate
Modulation/FEC:
DVB-S2
DVB-S
DVB-DSNG
Operating Modes
Transport Streams
Spectral Mask
M&C/Remote Port
Physical (PL) Layer
Scrambling
Pilot Insertion
Reflash
Frequency Reference
Internal Reference
External Clock
External Ref
1:1 Redundancy
Fault
Configuration
External Tx Carrier Off
Agency Approval
EN 302 307
EN 301 421
EN 301 210
1 to 45 Msps
1 to 45 Msps (QPSK, 8PSK), 35 Msps (16APSK), 28 Msps (32APSK)
1 to 45 Msps
Corresponds to symbol rate. See Sect. 1.5.7
See modulator/demodulator
QPSK 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 LDPC + BCH
8-PSK 3/5, 2/3, 3/4, 5/6, 8/9, 9/10 LDPC + BCH
16-APSK 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 LDPC + BCH
32-APSK 3/4, 4/5, 5/6, 8/9, 9/10
QPSK 1/2, 2/3, 3/4, 5/6, 7/8 Convolutional + Reed Solomon
8-PSK 2/3, 5/6, 8/9 Convolutional + Reed Solomon
16-QAM 3/4, 7/8 Convolutional + Reed Solomon
CCM only
Only Single Transport Stream supported
20%, 25%, or 35% (per DVB-S, DSNG, S2) – See Figure 1-7 and Table 1-1.
RS-232 and RS-485 2W/4W with Comtech EF Data protocol
10/100 Base-T Ethernet with HTTP, SNMP or Telnet
User specified value (one) of n = 0 to 262,141, per EN 302 307.
Selection for On or Off
Ethernet port
Selectable
10 MHz for data and IF, stability ± 1.5 ppm
For data interfaces only, not IF. Clock Input depends upon data interface module.
1, 2, 5, 10 or 20 MHz for IF, internally phase locked. Input is 50 or 75Ω compatible
with 0.5 to 4.0 Up-p sine or square wave. Requires high stability source.
Built in controller for operation with optional CRS-170A for L-Band and CRS-180 for
70/140 MHz
Form C, see connector pinout information and notes
Non-volatile for 1-year minimum and returns upon power up.
TTL low signal – path bypasses microprocessor (Alarm Conn)
Safety, conducted and radiated emissions and Immunity sufficient for CE certification
1–13
Requirements
Revision 11
MN/CDM710.IOM