Comtech EF Data CDM-760, Installation And Operation Manual

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Appendix G Revision 4
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760
G–31
G.6 ACM Summary of Specifications
ACM Operational Mode Functional in DVB-S2, DVB-S2-EB1/EB2, and DVB-S2X network specification modes
Symbol Rate Range 1 to 150 Msps
Interface
10/100/100BaseT Ethernet, with auto-sensing 10/100/1000 and auto-crossover detection or
optional Optical Gigabit Ethernet interface
Remote Es/No reporting Automatically reported from remote modem
Max span of data rate 0.1 to 314 Mbps (entire range of modem capability)
Switch point
(decreasing Es/No)
Corresponds to Es/No (plus impairments) at QEF (~PER = 10
-7
)
Switch point hysteresis Configurable via microprocessor switches only
Max fading rate Configurable Target Es/No margin from 0.0 to 4.5 dB
Max ModCod update rate
Updates to the MODCOD can happen up to 4 times per second (no restriction on distance
between MODCODs)
Configurable parameters
Minimum and Maximum ModCod
Remote Demodulator Unlock options:
• Maintain current ModCod
•
Go to minimum ModCod
Es/No Target Margin: 0.0 to 4.5 dB0 in 0.1dB steps
Modulation Type Impairment selection:
•
Impairment for QPSK, 8PSK, 16APSK and 32APSK: 0 to 9.9dB in 0.1dB steps
• Impairment for QPSK ≤ 8PSK ≤ 16APSK ≤ 32APSK
Monitored parameters
Tx and Rx ModCods
Local and Remote Es/No: (-3.0dB to +22.0dB, 0.1dB resolution)
Configuration and monitor menus displaying data rate, modulation and code rate update
dynamically with ModCod
Regulatory Compliance CE Mark, FCC Part 15 Subpart B, RoHS-compliant