Comtech EF Data CDM-625A Advanced Satellite Modem

Not Specified

L-Band Modems

Comtech EF Data

8.0 kg

COMTECH CDM-625A ADVANCED SATELLITE MODEM CDM-625A TYPICAL USERS Mobile Network Operators Telecom Operators Satellite Service Providers Government & Military Enterprise Offshore COMMON APPLICATIONS Mobile Backhaul G.703 Trunking IP Trunking Offshore & Maritime Communications Enterprise Communications on-the-Move Satellite News Gathering CDM-625A Specifications Data Rate 18 kbps to 25 Mbps, in 1...
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COMTECH CDM-625A ADVANCED SATELLITE MODEM

    CDM-625A TYPICAL USERS

    • Mobile Network Operators
    • Telecom Operators
    • Satellite Service Providers
    • Government & Military
    • Enterprise
    • Offshore

    COMMON APPLICATIONS

    • Mobile Backhaul
    • G.703 Trunking
    • IP Trunking
    • Offshore & Maritime Communications
    • Enterprise
    • Communications on-the-Move
    • Satellite News Gathering

      CDM-625A Specifications
      Data Rate 18 kbps to 25 Mbps, in 1 bps steps (modulation, FEC & data interface dependant)
      Symbol Rate 18 ksps to 12.5 Msps
      Operating Frequency 50 – 180 MHz (standard) and 950 – 2250 MHz (option) 100 Hz resolution, independent TX and RX operation
      Major Operating Modes
      (See User Manual For Details)
      Open network, per IESS-308 / 309 / 310 / 314 transparent, closed network per IESS-315
      LDPC / TPC Codec (option)
      VersaFEC Codec (option) with ACM or Constant Coding & Modulation (CCM) EDMAC Framed with/without AUPC
      RS Outer Codec
      High rate ESC / Enhanced ESC (ESC++)
      Drop & insert (D&I) /Enhanced D&I++ (option)
      Quad E1 drop & insert (QDI) (option)
      DoubleTalk Carrier-in-Carrier (option)
      FEC & Modulation
      None Uncoded BPSK/QPSK/OQPSK
      Viterbi: k=7, per IESS-308/309 Rate 1/2 BPSK/QPSK/OQPSK
      Rate 3/4 QPSK/OQPSK
      Rate 7/8 QPSK/OQPSK
      Viterbi with Reed Solomon Rate 3/4 16-QAM
      Rate 7/8 16-QAM
      Sequential See CDM-625A user manual for details
      Reed Solomon Open network and closed network modes
      TCM (Per IESS-310) 8PSK/TCM Rate 2/3
      Integrated LDPC and TPC (2nd Gen) Codec (Optional Plug-in Module) LDPC Code Rates
      Rate 1/2 BPSK/QPSK/OQPSK
      Rate 2/3 QPSK/OQPSK/8PSK/8-QAM
      Rate 3/4 QPSK/OQPSK/8PSK/8-QAM/16-QAM
      TPC Code Rates
      Rate 5/16 BPSK
      Rate 21/44 BPSK/QPSK/OQPSK
      Rate 3/4 QPSK/OQPSK/8PSK/8-QAM/16-QAM
      Rate 7/8 QPSK/OQPSK/8PSK/8-QAM/16-QAM
      Rate 0.95 QPSK/OQPSK/8PSK/8-QAM
      VersaFEC Codec (Option) BPSK Rate 0.488
      QPSK Rate 0.533, 0.631, 0.706, 0.803
      8-QAM Rate 0.576 (ECCM), 0.642, 0.711, 0.780
      16-QAM Rate 0.644 (ECCM), 0.731, 0.780, 0.829, 0.853
      BPSK 0.493 (ULL)
      QPSK 0.493, 0.654, 0.734 (ULL)
      VersaFEC-2 Codec (Option) Long Block:
      BPSK Rate 0.489
      QPSK Rate 0.489, 0.537, 0.586, 0.611, 0.635, 0.660, 0.684, 0.733
      8-QARY Rate 0.521, 0.537, 0.562, 0.586, 0.611, 0.635, 0.660, 0.684, 0.708, 0.733
      16-QARY Rate 0.586, 0.611, 0.635, 0.660, 0.684, 0.708, 0.733, 0.757, 0.782
      32-ARY Rate 0.660, 0.684, 0.708, 0.733, 0.757, 0.782, 0.801, 0.831, 0.855, 0.879

      Short Block:
      BPSK Rate 0.489
      QPSK Rate 0.489, 0.537, 0.586, 0.611, 0.635, 0.660, 0.684, 0.733
      8-QARY Rate 0.521, 0.537, 0.562, 0.586, 0.611, 0.635, 0.660, 0.684, 0.708, 0.733
      16-QARY Rate 0.586, 0.611, 0.635, 0.660, 0.684, 0.708, 0.733, 0.757, 0.782
      32-ARY Rate 0.660, 0.684, 0.708, 0.733, 0.757, 0.782, 0.801, 0.831,
      Scrambling IDR Mode, no RS, - per ITU V.35 (Intelsat variant)
      IBS mode, no RS - per IESS-309, externally frame synchronized
      Transparent Closed Network mode, no RS or Turbo coding - per ITU V.35 (Intelsat variant)
      EDMAC mode, no RS coding - externally frame synchronized - proprietary
      Turbo Product Code/LDPC/VersaFEC modes - externally frame synchronized - proprietary
      All RS modes - externally frame synchronized per IESS-308/309/310
      Management 10/100Base-T Ethernet with SNMP, HTTP and Telnet support, EIA-232, EIA-485 (2- or 4-wire)
      Form C Relays Hardware fault, RX and TX traffic alarms, open network backward alarms
      External Reference
      (Input OR Output)
      BNC connector
      Input: 1, 2, 5, or 10 MHz, -6 dBm to +10 dBm, 50 Ω/75 Ω (nominal)
      Output: 10 MHz, 2.7 V peak-to-peak ± 0.4 V, low impedance output
      Data Interfaces
      EIA-422/-530 DCE , Up to 14 Mbps 25-pin D-sub (female)
      V.35 DCE , Up to 14 Mbps 25-pin D-sub (female)
      LVDS Serial , Up to 25 Mbps 25-pin D-sub (female)
      HSSI Serial , Up to 25 Mbps 25-pin D-sub (female)
      G.703 T1, 1.544 Mbps (Balanced 100 Ω) 9-pin D-sub (female) or BNC (female)
      G.703 T2, 6.312 Mbps (Unbalanced 75 Ω or balanced 110 Ω) 9-pin D-sub (female) or BNC (female)
      G.703 E1, 2.048 Mbps (Unbalanced 75 Ω or balanced 120 Ω) 9-pin D-sub (female) or BNC (female)
      G.703 E2, 8.448 Mbps (Unbalanced 75 Ω) 9-pin D-sub (female) or BNC (female)
      ASI , Up to 25 Mbps BNC (female)
      Additional 2.048 Mbps E1 Ports for Quad-E1 (Balanced 120 Ω) 9-pin D-sub (female)
      Overhead Data 44-pin High-density D-sub (male)
      Modem Alarms 15-pin D-sub (male)
      4-port 10/100Base-T Managed Ethernet Switch
      (Optional Packet Processor Available)
      4 x RJ-45
      Modulator
      Frequency Stability ± 0.06 ppm (± 6 x 10-8), 0° to 50°C (32° to 122°F) with internal reference
      Transmit Filtering Per IESS-308
      Alpha (Rolloff) 5%, 10%, 15%, 20%, 25%, 35%
      Harmonics and Spurious Better than -60 dBc/4 kHz (typically <-65 dBc/4kHz)
      Measured from 1 to 500 MHz (50-180 MHz band)
      Measured F0 ± 500 MHz (950-2250 MHz band)
      Transmit On/Off Ratio -60 dBc minimum
      Output Phase Noise (dB/Hz - Freq. Offset)
      < 0.480° rms double sided, 100 Hz to 1 MHz
      (Minimum 16 dB better overall than the Intelsat 
      IESS-308/309 requirements)
      -63.0 dB/Hz - 100 Hz
      -73.0 dB/Hz - 1 kHz
      -83.0 dB/Hz - 10 kHz
      -93.0 dB/Hz - 100 kHz
      Fundamental AC line spurious is -42 dBc or lower The sum of all other single sideband spurious, from 0 to 0.75 x symbol rate, is -48 dBc or lower
      Output Power 50-180 MHz: 0 to -25 dBm, 0.1 dB steps
      950-2250 MHz: 0 to -40 dBm, 0.1 dB steps
      Power Accuracy 50-180 MHz: 
      ± 0.5 dB over frequency, data rate, modulation type and temperature range of 15 to 35° C 
      ± 0.8 dB over frequency, data rate, modulation type and temperature range of 0 to 50° C
      950-2250 MHz:
      ± 0.7 dB over frequency, data rate, modulation type and temperature range of 15 to 35° C
      ± 1.0 dB over frequency, data rate, modulation type and temperature range of 0 to 50° C
      Output Impedance & Return Loss 50-180 MHz: 50 Ω/75 Ω, 16 dB minimum return loss (18 dB typical), BNC connector
      950-2250 MHz: 50 Ω, 19 dB minimum return loss (21 dB typical), Type-N connector
      Clocking Options Internal, ± 0.06 ppm (SCT)
      External, locking over a ± 100 ppm range (TT)
      Loop timing (RX satellite clock) – supports asymmetric operation
      External clock
      External TX Carrier Off By TTL ‘low’ signal or external contact closure
      BUC Reference (10 MHz) Via TX IF center conductor, 10.0 MHz ± 0.06 ppm (with internal reference), selectable on/off, 0.0 dBm ± 3 dB
      BUC Power Supply (HW Option) 24 VDC, 4.17 Amps max., 90 W @ 50° C 48 VDC, 3.125 Amps max., 150 W @ 50° C (180 W @ 30° C)
      Supplied through TX IF center conductor and selectable on/off via M&C control
      Demodulator
      Input Power Range, Desired Carrier 50-180 MHz: -105 + 10 log (symbol rate) to -70 + 10 log (symbol rate) dBm
      950-2250 MHz: -130 + 10 log (symbol rate) to -80 + 10 log (symbol rate) dBm
      Max Composite Operating Level 50-180 MHz: 94 – 10 log (symbol rate, desired carrier) dBc, +10 dBm max., with the additional requirement that within ± 10 MHz of the desired carrier the composite power is ≤ +30 dBc
      950-2250 MHz: 102 – 10 log (symbol rate, desired carrier) dBc, +10 dBm max., with the additional requirement that within ± 10 MHz of the desired carrier the composite power is ≤ +30 dBc
      Absolute Maximum +20 dBm
      Adaptive Equalizer 5-tap design, selectable on/off
      Acquisition Range Programmable in 1kHz increments
      Below 64 ksymbols/sec ± 1 kHz to ± (Rs/2) kHz, where Rs = symbol rate in ksymbols/sec
      Between 64 and 389 ksymbols/sec ± 1 kHz to ± 32 kHz
      Above 389 ksymbols/sec ± 1 kHz to ± (0.1 * Rs) kHz, up to a maximum of ± 200 kHz
      Acquisition Time Highly dependent on data rate, FEC rate, and demodulator acquisition range. E.g. 120 ms average at 64 kbps, R1/2 QPSK, ± 10 kHz acquisition sweep range, 6 dB Eb/No
      Plesiochronous/ Doppler Buffer Selectable from 64 to 262,144 bits, in 16-bit steps (Additional limitations for G.704 frame boundaries)
      Receive Clock RX satellite, TX terrestrial, external reference
      Clock Tracking ± 100 ppm minimum
      LNB Reference (10 MHz) Via RX IF center conductor, 10.0 MHz ± 0.06 ppm (with internal reference), selectable on/off, -3.0 dBm ± 3 dB
      LNB Voltage Selectable on/off, 13 VDC, 18 VDC per DiSEq 4.2 and 24 VDC at 500 mA maximum
      Monitor Functions Eb/N0 estimate, corrected BER, frequency offset, buffer fill state, receive signal level
      DoubleTalk Carrier-in-Carrier
      Delay Range 0 to 330 ms 
      Power Spectral Density Ratio
      (Interferer to Desired)
      BSPK/QPSK/8PSK/8-QAM: –7 dB to +11 dB
      16-QAM: -7 dB to +7 dB
      Maximum Symbol Rate Ratio 3:1 (TX:RX or RX:TX)
      Eb/No Degradation 0 dB Power Spectral Density Ratio
      BPSK/QPSK/OQPSK: 0.3 dB
      8-QAM: 0.4 dB
      8PSK: 0.5 dB
      8-ARY: 0.4 dB
      16-QAM: 0.6 dB
      16-ARY: 0.6 dB
      32-ARY: 0.6 dB
      +10 dB power spectral density ratio
      Additional 0.3 dB
      Satellite Restrictions Satellite in “loop-back” mode (i.e., the transmit station can receive itself)
      “Non-processing” satellite (i.e., does not demodulate or remodulate the signal)
      Environmental and Physical
      Temperature Operating: 0 to 50°C (32 to 122°F)
      Storage: -25 to 85°C (-13 to 185°F)
      Power Supply 100 – 240 VAC, +6%/-10%, 50/60 Hz, auto sensing
      -24 VDC (HW option) -48 VDC (HW option)
      Dimensions (1RU) (height x width x depth) 1.75” x 19.0” x 17.65” (4.4 x 48 x 44.8 cm) approximate
      Weight 10.8 lbs (4.9 kg) maximum, with all option modules and 48 VDC BUC power supply installed
      CE Mark EN 301 489-1 (ERM)
      EN55022 (Emissions) 
      EN55024 (Immunity)
      EN 61000‐3‐2
      EN 61000‐3‐3 
      EN60950 (Safety)
      FCC FCC Part 15, Subpart B

      Returns Policy

      You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

      You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

      If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

      Shipping

      We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

      When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

      Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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