Ideal for optimizing satellite communications, the CDM-570L is designed to meet the needs of low-cost terminals with L-band interfaces to Low Noise Block Converters (LNBs) and Block Up Converters (BUCs). The CDM-570L includes synchronous EIA-530/422, V.35, EIA-232 and G.703 interfaces. An optional Internet Protocol (IP) Module is available with a 10/100 BaseT Ethernet interface for LAN and network applications. The architecture is firmware and FPGA-based, and the internal Flash memory allows easy updating via the serial port, or front panel USB port. The modem offers exceptional flexibility and cost-effective performance in a 1RU enclosure.

FEATURES

• Automatic Uplink Power Control (AUPC) and EDMAC
• Asymmetric Loop Timing
• Built-in 1:1 redundancy controller (Y-cables for data, simple and inexpensive external module for RF)
• Operation with LNB and BUC
• BUC 10 MHz reference and FSK communications and optional BUC Power Supplies
• LNB Power Supply and 10 MHz reference
• Backwards compatible with the CDM-500/CDM-550, CDM-550T and CDM-600 and CDM-600L
• Interoperable with SDM-300A, SDM-300L3
• Ethernet M&C interface
• IP Module option
• Vipersat Management System (VMS)

 SYSTEM SPECIFICATIONS

• Frequency Range 950 to 1950 MHz, 100 Hz frequency resolution
• Input/Output Impedance and connectors
• Transmit: 50. (female Type N connector)
• Receive: 50. (female Type N connector)
• Data Interfaces EIA-422/530, V.35, Sync EIA-232, G.703 T1, G.703 E1 balanced or unbalanced
  

Data Rate Range

(1 bps programmable, and fully independent Tx and Rx rates)

• Rate 1/2 BPSK 2.4 kbps to 1.25 Mbps
• Rate 1/2 QPSK/OQPSK 4.8 kbps to 2.5 Mbps
• Rate 3/4 QPSK/OQPSK 7.2 kbps to 3.75 Mbps
• Rate 7/8 QPSK/OQPSK 8.4 kbps to 4.375 Mbps
• Rate 0.95 QPSK/OQPSK TPC 9.1 kbps to 4.72 Mbps
• Rate 2/3 8-PSK TCM 4.8 kbps to 5 Mbps
• Rate 3/4 8-PSK TPC 10.8 kbps to 5 Mbps
• Rate 7/8 8-PSK TPC 13.6 kbps to 5 Mbps
• Rate 7/8 16-QAM TPC 16.8 kbps to 5 Mbps
• Uncoded 4.8 kbps to 5 Mbps
  (See the CDM-570L manual for details)

Scrambling Mode dependent - ITU V.35, or proprietary externally synchronized

FEC Options

Viterbi	Rate 1/2 BPSK, QPSK/OQPSK
Rate 3/4 and 7/8 QPSK/OQPSK
and 16-QAM w/RS
Pragmatic TCM	8-PSK 2/3
(CLOSED NETWORK - NOT IESS-310)
Turbo Product Coding	Rate 21/44 BPSK, 5/16 BPSK,
	Rate 1/2 QPSK/OQPSK
	Rate 3/4 and Rate 7/8 QPSK/OQPSK,
	8-PSK and 16-QAM
	Rate 0.95 QPSK/OQPSK and 8-PSK
Reed-Solomon	Proprietary 220/200 and 200/180
	modes available
Uncoded	BPSK, QPSK/OQPSK
M&C Interface	EIA-232, EIA-485 (2- or 4-wire),
	Ethernet 10/100 BaseT
Form C Relays	Tx, Rx traffic alarms and Unit faults

 

Download Comtech Modem Specification