Introduction Revision 4
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760
1–8
During IF loopback, all of the receive configuration parameters are temporarily changed to
match those of the transmit side, and an internal IF switch connects the modulator output to
the demodulator input. When normal operation is again selected, all of the previous values are
restored.
1.2.5 On-site Firmware Updates
Chapter 4. UPDATING FIRMWARE
Field update of the operating system firmware is possible through file upload via satellite or the
Ethernet port.
1.2.6 On-site Operational Upgrades
Chapter 5. FAST ACTIVATION PROCEDURE
Field activation of software-based options is possible through Comtech’s FAST (Fully Accessible
System Topology) Feature upgrade process.
Table 1-1. FAST and FAST-accessible Hardware Options
Description and Comments Option Installation Method
ACM (Advanced Coding and Modulation) Point-to-Point
FAST
AUPC (Automatic Uplink Power Control)
150 Msps Rx symbol rate
150 Msps Tx symbol rate
Rx QPSK Demodulation
Rx 8-PSK Demodulation
Rx 16APSK Demodulation
Rx 32APSK and 64APSK Demodulation
Tx QPSK Modulation
Tx 8-PSK Modulation
Tx 16APSK Modulation
Tx 32APSK and 64APSK Modulation
DVB-S2 Efficiency Boost version X (DVB-S2-EBx)
DVB-S2 Extended (DVB-S2X)
Carrier-in-Carrier (CnC)
FAST & Hardware
K4 GZip Lossless Compression
Optical Gigabit Ethernet Interface
G.703 Data Interface E3/T3/STS-1 (34.368/ 44.768/51.84 Mbps)
Hardware
STM-1 Copper Data Interface (155.52 Mbps)
OC-3 Single Mode Data Interface (155.52 Mbps)
OC-3 Multi Mode Data Interface (155.52 Mbps)
High-Speed Packet Processor
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