Comtech CDM-570A-IPEN & CDM-570AL-IPEN 3xDES Encryption Satellite Modems

Frequency Range

CDM-570A-IPEN & CDM-570AL-IPEN: 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 & FEC

Data 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 8PSK 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 8PSK/8-QAM TPC

10.8 kbps to 6.750 Mbps

7/8 8PSK/8-QAM TPC

13.6 kbps to 7.875 Mbps

0.95 8PSK/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

FEC Options Viterbi

Rate 1/2 BPSK, QPSK/OQPSK Rate 3/4 and 7/8 QPSK/OQPSK and 16-QAM w/RS

TCM

8PSK 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, 8PSK/8-QAM and 16-QAM Rate 0.95 QPSK/OQPSK and 8PSK/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 n, BNC connector CDM-570L & CDM-570L-IP: transmit and receive 50 n, 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

CDM-570A-IPEN & CDM-570AL-IPEN

CDM-570L & CDM-570L-IP

Frequency Stability

±1 ppm, 0º to 50ºC (32º to 122ºF)

±0.06 ppm, 0º to 50ºC (32º to 122ºF)

Output Power

0 to –25 dBm, 0.1 dB steps

0 to –40 dBm, 0.1 dB steps

Accuracy

± 0.5 dB over frequency and temperature

± 1.0 dB over frequency and temperature

Phase Noise

< 0.75 degrees RMS double-sided, 100 Hz to 1 MHz

< 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)

CDM-570 & CDM-570-IP

CDM-570L & CDM-570L-IP

Input Power Range

-30 to -60 dBm

-130 + 10 log symbol rate, dBm (minimum) -90 + 10 log symbol rate, dBm (maximum)

Max Composite Level

+35 dBc, up to -5 dBm absolute max.

+40 dBc, up to -10 dBm absolute max.

Acquisition Range

± 1 to ± 32 kHz, 1 kHz step

± 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

Temperature

Operating: 0 to 50°C (32 to 122°F)

Storage: -25 to 85°C (-13 to 185°F)

Power Supply

100 to 240 VAC, 50/60 Hz -24 VDC (HW option) -48 VDC (HW option)

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