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Comtech EF Data CDM-570L L-Band Satellite Modem

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  • Data Rates 2.4 kbps to 9.98 Mbps
  • Fast Acquisition demodulator
  • Turbo Product Coding
  • EDMAC and AUPC operation


SKU: SATRES-286

CDM-570/L & CDM-570/L-IP Specifications
Frequency Range CDM-570 & CDM-570-IP: 50 to 90 or 100 to 180 MHz, 100 Hz resolution

CDM-570L & CDM-570L-IP: 950 to 2000 MHz, 100 Hz resolution
Data Interfaces EIA-422/-530 DCE, V.35 DCE, Sync EIA-232, 10/100Base-T Ethernet (option), G.703 T1 balanced (option), G.703 E1 balanced or unbalanced (option)
Data Rate Range (See user manual for details) 2.4 kbps to 9.98 Mbps (depending on modulation, FEC and framing), 1 bps step with fully independent TX and RX rates
Modulation & FECData Rate Range
5/16 BPSK TPC 2.4 kbps to 0.937 Mbps
21/44 BPSK TPC 2.4 kbps to 1.430 Mbps
1/2 BPSK 2.4 kbps to 1.500 Mbps
1/2 QPSK/OQPSK 4.8 kbps to 3.000 Mbps
3/4 QPSK/OQPSK 7.2 kbps to 4.500 Mbps
7/8 QPSK/OQPSK 8.4 kbps to 5.250 Mbps
2/3 8-PSK TCM 8.7 kbps to 4.400 Mbps
21/44 QPSK/OQPSK TPC 4.8 kbps to 2.860 Mbps
3/4 QPSK/OQPSK TPC 7.2 kbps to 4.500 Mbps
7/8 QPSK/OQPSK TPC 8.4 kbps to 5.250 Mbps
0.95 QPSK/OQPSK TPC 9.1 kbps to 5.666 Mbps
3/4 8-PSK/8-QAM TPC 10.8 kbps to 6.750 Mbps
7/8 8-PSK/8-QAM TPC 13.6 kbps to 7.875 Mbps
0.95 8-PSK/8-QAM TPC 15.3 kbps to 8.500 Mbps
3/4 16-QAM TPC 14.4 kbps to 9.000 Mbps
7/8 16-QAM TPC 16.8 kbps to 9.980 Mbps
Uncoded BPSK 4.8 kbps to 3.000 Mbps
Uncoded QPSK/OQPSK 9.6 kbps to 5.000 Mbps
Note: Data rate specifications reflect CDM-570/L or CDM-570/L-IP modem operating in non-Vipersat mode
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
TCM 8-PSK 2/3 (Closed network – not IESS-310)
Turbo Product Coding Rate 21/44 BPSK, 5/16 BPSK,

Rate 21/44 QPSK/OQPSK

Rate 3/4 and Rate 7/8 QPSK/OQPSK, 8-PSK/8-QAM and 16-QAM

Rate 0.95 QPSK/OQPSK and 8-PSK/8-QAM
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 10/100Base-T (dependent on operational mode)
Input/Output Impedance CDM-570 & CDM-570-IP: matched for 50/75 Ω, BNC connector

CDM-570L & CDM-570L-IP: transmit and receive 50 Ω, female Type N connector
External Reference Input 1, 2, 5, 10 or 20 MHz, BNC connector
Form C Relays TX, RX traffic alarms and unit faults
Modulator (CDM-570 & CDM-570-IP)
Frequency Stability ±1 ppm, 0º to 50ºC (32º to 122ºF)
Output Power 0 to –25 dBm, 0.1 dB steps
Accuracy ± 0.5 dB over frequency and temperature
Phase Noise < 0.75 degrees RMS double-sided, 100 Hz to 1 MHz
Output Spectrum/ Filtering Meets IESS-308/-309 power spectral mask
Harmonics and Spurious < -55 dBc/4 kHz (typically < -60 dBc/4 kHz)
Transmit On/Off Ratio 55 dB minimum
External TX Carrier Off By TTL LOW signal, or RTS
TX Clock Options Internal (SCT), external (TT), loop timing with symmetric or asymmetric operation (data interface dependent)
Modulator (CDM-570L & CDM-570L-IP)
Frequency Stability ±0.06 ppm, 0º to 50ºC (32º to 122ºF)
Output Power 0 to –40 dBm, 0.1 dB steps
Accuracy ± 1.0 dB over frequency and temperature
Phase Noise < 1.2 degrees RMS double-sided, 100 Hz to 1 MHz
Output Spectrum/ Filtering Meets IESS-308/-309 power spectral mask
Harmonics and Spurious < -55 dBc/4 kHz (typically < -60 dBc/4 kHz)
Transmit On/Off Ratio 55 dB minimum
External TX Carrier Off By TTL LOW signal, or RTS
TX Clock Options Internal (SCT), external (TT), loop timing with symmetric or asymmetric operation (data interface dependent)
Demodulator (CDM-570 & CDM-570-IP)
Input Power Range -30 to -60 dBm
Max Composite Level +35 dBc, up to -5 dBm absolute max.
Acquisition Range ± 1 to ± 32 kHz, 1 kHz step
Acquisition Time Highly dependent on data rate, FEC rate, and demodulator acquisition range. Example: 120 ms average at 64 kbps, Rate 1/2 QPSK, ± 10 kHz acquisition sweep range, 6dB Eb/No
Receive Buffer 512, 1024, 2048, 4096, 8182, or 16384 bits
Receive Clock Options Buffer disabled (RX satellite), buffer enabled (symmetric or asymmetric operation) (data interface dependent)
Clock Tracking ± 100 ppm minimum
Monitor Functions Eb/No, frequency offset, BER, buffer fill status, RX signal level
Demodulator (CDM-570L & CDM-570L-IP)
Input Power Range -130 + 10 log symbol rate, dBm (minimum) -90 + 10 log symbol rate, dBm (maximum)
Max Composite Level +40 dBc, up to -10 dBm absolute max.
Acquisition Range ± 1 to ± 32 kHz, 1 kHz step, symbol rate <= 625 ksps

± 1 to ± 200 kHz, 1 kHz step, symbol rate > 625 ksps
Acquisition Time Highly dependent on data rate, FEC rate, and demodulator acquisition range. Example: 120 ms average at 64 kbps, Rate 1/2 QPSK, ± 10 kHz acquisition sweep range, 6dB Eb/No
Receive Buffer 512, 1024, 2048, 4096, 8182, or 16384 bits
Receive Clock Options Buffer disabled (RX satellite), buffer enabled (symmetric or asymmetric operation) (data interface dependent)
Clock Tracking ± 100 ppm minimum
Monitor Functions Eb/No, frequency offset, BER, buffer fill status, RX signal level
Low-Noise Block Converter (LNB) Support (CDM-570L & CDM-570L-IP Only)
LNB Voltage +13, +18, and +24 VDC @ 500 mA maximum
LNB Reference 10 MHz via RX center conductor, -3 dBm ± 3 dB
Block Up Converter (BUC Support (CDM-570L & CDM-570L-IP Only)
BUC Voltage 24 VDC, 90 W @ 50°C, 100 W @ 30°C (internally fitted option) 48 VDC, 150 W @ 50°C, 180 W @ 30°C (internally fitted option)
BUC Reference 10 MHz via TX center conductor, 0 dBm ± 3 dB
FSK Support Via TX center conductor with FSK BUCs
Environmental & Physical
Temperature

    Operating

    Storage


0 to 50ºC (32 to 122ºF)

-25 to 85ºC (-13 to 185ºF)
Power Supply 100 to 240 VAC, 50/60 Hz
Power Consumption

(See Manual)
CDM-570: 29 W typical (32 W max.)

CDM-570-IP: 37 W typical

CDM-570L: 29 W typical (32 W max.) w/o BUC

CDM-570L-IP: 37 W typical w/o BUC
Dimensions

(height x width x depth)
CDM-570-IP: 1.75” x 19” x 12”

(4.4 x 48.3 x 30.5 cm)

CDM-570L-IP: 1.75” x 19” x 16”

(4.4 x 48.3 x 40.6 cm)
Weight CDM-570 & CDM-570-IP: 6 lbs (2.7 kg)

CDM-570L: 7 lbs (3.2 kg) (without BUC P/S)

CDM-570L & CDM-570L-IP: 16 lbs (7.2 kg) including 150 W BUC power supply
Operations & Maintenance
Configuration and Management Front panel

Remote port – EIA-232 or EIA-485 (2- or 4-wire)

SNMP with MIB II and private, modem-specific MIB

Telnet

Web browser (HTTP)

Console interface (EIA-232, RJ-12 connector)
Software/firmware upgrade via FTP
IP traffic statistics
Faults and alarms
Configuration backup and restoral
Accessories
CRS-170A CDM-570L & CDM-570L-IP: 1:1 Modem Redundancy IF Switch
CRS-180 CDM-570 & CDM-570-IP: 1:1 Modem Redundancy IF Switch
CRS-280 CDM-570: 1:N Modem Redundancy IF Switch Module
CRS-280L CDM-570L: 1:N Modem Redundancy IF Switch Module
CRS-300 CDM-570 & CDM-570L: 1:10 Modem Redundancy Switch
Regulatory
CE Mark EMC, Safety (CDM-570 & CDM-570-IP)

EN55022 Class B (Emissions)

EN50082-1 Part 1 (Immunity)

EN60950 (Safety) (CDM-570L & CDM-570L-IP)
FCC Approval FCC Part 15 Class B (CDM-570L & CDM-570L-IP)
Available Options
How EnabledOption
FAST Variable rate to 2.048 Mbps
FAST Variable rate to 5 Mbps
FAST Variable rate to 9.98 Mbps
FAST 8-PSK, 8-QAM modulation (8-QAM with TPC only)
FAST 16-QAM modulation
FAST G.703 clock extension (requires G.703 E1/T1 interface option)
Hardware G.703 E1/T1 interface
Hardware Reed-Solomon Codec board
Hardware Turbo Codec board
Hardware E1 RAN Optimization (Requires G.703 E1/T1 interface option)
Hardware Power supply, AC input
Hardware Power supply, -48 VDC input
Hardware 24 VDC, 90 W @ 50°C (100 W @ 30°C) BUC power supply, AC input or -48 VDC input
Hardware 48 VDC, 150 W @ 50°C (180 W @ 30°C) BUC power supply, AC input or - 48 VDC input
Hardware IP Module
Networking Protocols
RFC 768 – UDP RFC 2045 – MIME
RFC 791 – IP RFC 2236 – IGMP v2
RFC 792 – ICMP RFC 2474 – Diffserv
RFC 793 – TCP RFC 2475 – Diffserv
RFC 826 – ARP RFC 2578 – SMI
RFC 856 – Telnet RFC 2597 – AF PHB
RFC 862 – Ping RFC 2598 – Expedite Forwarding
RFC 894 – IP RFC 2616 – HTTP
RFC 959 – FTP RFC 2821 – SMTP
RFC 1112 – IP Multicast RFC 3412 – SNMP
RFC 1213 – SNMP MIB II RFC 3416 – SNMPv2
RFC 1812 – IPv4 Routers RFC 3418 – SNMP MIB

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