Comtech CDM-710G DVB-S2 SNG High Speed Satellite Modem
Data rates up to 45 Msps, Fully supports 32-APSK Modulation
CDM-710G DVB-S2 SNG High Speed Satellite Modem
This product has been designated end of life by the manufacturer. Please contact us for info on a suitable replacement.
The Comtech EF Data CDM-710G High-Speed Satellite Modem provides transmission of data using the same powerful DVB-S21 techniques developed for video delivery in Digital Video Broadcast (DVB) applications. It operates over satellite links with programmable symbol / data rates up to 45 Msps.
The modulation types supported include DVB-S2 QPSK, 8PSK, 16APSK and 32APSK32APSK. Constant Coding and Modulation (CCM) operation with a single input stream is provided. The unit is available in modulator only, demodulator only, and modem configurations. The terrestrial data interfaces are field-removable to allow swap out of interface types.
The data interfaces include the CDI-10-1 with G.703 E3/T3/STS-1, CDI-60 HSSI and CDI-70 Gigabit Ethernet. DVB-S2 offers new opportunities for data transmission applications. With a broad range of modulation and coding formats, it permits the user to tailor a link for the available bandwidth and power to optimize
link performance. Whether a link is point-to-point or point-to-multipoint there is a format available to suit each application. The CDM-710G is designed for generic (non-MPEG2 format) data applications.
With a Gigabit data interface and either a 70/140 MHz or L-Band IF, the CDM-710G series is equipped with the configurations most frequently requested by users. This is ideal for data transmission formats that take advantage of the Ethernet packets for digital one-way, two-way and any network applications. The HSSI interface enables IP or other data formats via a serial interface, and telecom applications are supported with the G.703 interface.
Features
Spectral rolloff of 20, 25 or 35%
52 to 88 MHz or 104 to 176 MHz in 100 Hz steps
950 to 1950 MHz TX (L-Band option)
Generic data transmission (any non-MPEG2 data)
DVB-S2 per EN 302 307
1 to 45 Msps, QPSK and 8PSK
1 to 35 Msps, 16APSK
1 to 28 Msps, 32APSK
50 Ohm impedance (70/140 MHz)
50 Ohm impedance (L-Band)
Unit management: RS-232 / RS-485, 2-Wire / 4-Wire or 10/100Base-T Ethernet
SNMP, Telnet or HTTP
Flash upgrade
FAST options
Constant Coding and Modulation operation
Generic data transmission (DVB-S2)
CDI-10-1 G.703 E3/T3/STS-1 data rates
CDI-60 HSSI data interface up to 70 Mbps
CDI-70 Gigabit Ethernet over all data rates
FAST Field Upgradable
Enhancing the CDM-710G’s performance is easy. Additional features are added quickly on site, using FAST access codes purchased from Comtech EF Data. To enable these features, simply enter the code at the front panel. Other features are added with a simple module swap.
Unit Management
The operator may configure and monitor the modem from the front panel, or through the remote M&C port. Control and status is provided through the RS-232, RS-485 (2/4 wire) port or 10/100Base-T Ethernet port. The management Ethernet port supports SNMP, Telnet and HTTP (web browser) operation.
SpecificationsSymbol/Date Rate Range Programmable in 1 sps increments |
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DVB-S2 (Please refer to the manual for additional details) |
QPSK 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 to 45 Msps, 80.48 Mbps max. |
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8PSK 3/5, 2/3, 3/4, 5/6, 8/9, 9/10 to 45 Msps, 120.5 Mbps max. |
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16APSK 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 to 35 Msps, 124.8 Mbps max. |
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32APSK 3/4, 4/5, 5/6, 8/9, 9/10 to 28 Msps, 124.6 Mbps max. |
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FEC Frame |
Normal (64,800 bits) or Short (16,200 bits) |
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Pilots |
On or Off |
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Alpha (Rolloff) |
20%, 25% or 35% |
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M&C / Remote Interface |
RS-232 /485, or 10/100Base.T on the base modem, SNMP, Telnet, HTTP |
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Reflash |
Ethernet port base modem and Ethernet port of Gigabit Ethernet interface |
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Frequency Stability |
Internal, stability ± 1.5 ppm |
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External Reference (BNC Female) |
None, 1, 2, 5, 10, or 20 MHz for IF and data, internally phase locked |
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Form C |
Modulator, demodulator and unit fault |
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Spectral Inversion |
Normal and Inverted |
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Configuration Retention |
Non-volatile memory; returns upon power up |
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Redundancy Support |
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1:1 |
CRS-180 (70/140 MHz) & CRS-170A (L-Band) |
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1:N CRS-300 with CRS-280/280L (70/140 MHz / L-Band) Modulator70 / 140 MHz 52 to 88 and 104 to 176 MHz in 100 Hz steps |
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Impedance / Connector |
50 n or 75 _, BNC female |
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Output Power |
0 to -20 dBm, 0.1 dB steps (70/140 MHz) |
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Power Accuracy |
± 0.5 dB of nominal at 25 _C. Within ±0.5 dB of 25 _C value over frequency and temperature range. |
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L-Band |
950-1950 MHz in 100 Hz steps, modulator |
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Impedance / Connector |
50 ___ |
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Output Power |
-5 to -25 dBm, 0.1 dB steps |
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Power Accuracy |
± 0.5 dB of nominal at 25 _C ± 0.5 dB from 25 _C value at same frequency |
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Harmonics and Spurs |
< 55 dBc/4kHz, modulated carrier Excludes spectral mask area |
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External TXCarrier Off |
TTL low signal |
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Quadrature Phase Error and Amplitude Imbalance Sideband 35 dB below unmodulated carrier Demodulator70 / 140 MHz 52 to 88 and 104 to 176 MHz in 100 Hz steps |
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Impedance / Connector |
50 n or 75 _, BNC female |
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Input Power, Minimum |
-58 + 10Log (symbol rate in Msps) dBm |
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AGC |
45 dB above minimum |
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L-Band |
950-1950 MHz in 100 Hz steps, demodulator |
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Impedance / Connector |
50 ___ |
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Input Power, Minimum |
-58 + 10Log (symbol rate in Msps) dBm |
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AGC |
45 dB above minimum |
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Es/No and Error rate (DVB-S2) |
Please refer to product manual. Within 0.3 to 1.0 dB of ideal, depending upon modulation and coding. |
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Base Unit Connector (Excluding Data Interface)Alarm Connector Form C: TX, RX and unit faults |
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(DB-15 Male) |
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External TX carrier off IQ test point |
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Unit Management |
DB-9 male with RS-232 and RS -485 2-Wire/4-Wire |
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RJ-45 Ethernet |
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TX & RX IF Connectors |
BNC-female (70 / 140 MHz) Type-N female (L-Band) |
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Test Functions |
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CW |
Modulation disabled and CW signal is transmitted |
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SSB Carrier |
Provides suppressed carrier and suppressed sideband |
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Loopback |
Full duplex only |
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Monitor Functions |
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Status Items – Available |
Fault log with fault type and time stamp |
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via Rear Panel |
Eb/No, Es/No, PER, BER (duplex or RX-only) |
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Data Interface Cards |
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CDI-10-1 |
G.703 (single TX/RX port): E3 (34.368 Mbps), T3 |
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(44.768 Mbps) or STS-1 (51.85 Mbps) |
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CDI-60 |
HSSI interface card, 188 byte or DVB-S2 generic to 70 Mbps |
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CDI-70 |
Gigabit Ethernet up to 1632 byte frame size (does not |
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support pro-MPEG COP3) |
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Environmental and PhysicalTemperature Operating: 0 to 50ºC (32 to 122ºF) |
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Storage: -40 to 70ºC (-40 to 158ºF) |
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Humidity |
95% maximum, non-condensing |
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Power Supply Input |
100 to 240 AC 50/60 Hz |
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Power Consumption |
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120 VAC at 60 Hz |
88 W, 93 VA maximum |
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230 VAC at 50 Hz |
88 W, 133 VA maximum |
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48 VDC |
87 W maximum |
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Weight |
15 lbs (6.8 kg) |
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Dimensions (1 RU) (height x width x depth) |
1.75” x 19” x 18.65” (4.4 x 48 x 47.4 cm) |
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Rack Slides |
Optional accessory |
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AC Receptacles |
Includes restraint for standard IEC-320 inlet |
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Agency Compliance |
CE Mark and FCC part 15 |
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OptionsType Option |
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FAST |
DVB-S2: QPSK, 8PSK, 16APSK, 32APSK |
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Hardware |
CDI-10-1 G.703 |
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(single TX/RX port E3/T3/STS-1) |
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Hardware |
CDI-60 HSSI data interface to 70 Mbps |
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Hardware |
CDI-70 Gigabit Ethernet interface all data rates |
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Hardware |
70 MHz or L-Band |
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Hardware |
TX-only, RX-only or duplex |
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Hardware |
Rack slides |
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Type |
Option |
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Enterprise, Broadband Interactive Services, Disaster Recovery & Emergency Communications, Enterprise, G.703 Trunking, High Speed Content Delivery
