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Comtech Radyne DMD50 Universal Satellite Modem
- Data rates from 2.4 kbps to 52 Mbps
- Optional DVB to EN301-210 & EN300-421
- Turbo FEC
- High stability reference
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Comtech Radyne DMD-50 Universal Satellite Modem
The DMD50 Satellite Modem breaks new ground in
flexibility, operation and cost. With standards including
IDR, IBS and DVB, and covering data rates up to 52
Mbps, this 1RU duplex modem covers virtually all of your
Satellite IP, Telecom, Video and Internet applications.
Switch between spur-free 70/140 MHz operation to LBand
without any configuration changes. It's all in the
same box!
DMD-50 Highlights
- BPSK/QPSK/OQPSK/8PSK/16QAM Operation
2.4 Kbps to 52 Mbps, 1 bps Steps
- FEC - Viterbi, Reed-Solomon, Sequential, Trellis,
Turbo Product Code
- Configuration, Monitor and Control Features Fully
User-Programmable
- Excellent Spurious Performance
- Fully Compliant with IESS 308/309/310/314/315
- Optional DVB to EN301-210 and EN300-421
- Industry-Standard Universal Interface Module
- Fast Acquisition
- 50 to 90 MHz and 100 to 180 MHz IF, and
950 to 2050 MHz L-Band in 1 Hz Steps
- Standard Features Include: Reed-Solomon,
Asynchronous Overhead, Automatic Uplink Power
Control (AUPC), and CM701 Compatible Satellite
Control Channel
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Hardware Options
- Turbo FEC
- Sequential FEC
- DC Input Power 48 VDC
- High-Stability Reference
Software Options
- Data Rate Upgrades
- L-Band Operation
- IDR, IBS
- 8PSK
- 16QAM
- Drop and Insert
- DVB-S
Interface Options
- Ethernet (10/100)
- Gigabit Ethernet (10/100/1000)
- HSSI Interface
- HSSI/Ethernet
- HSSI/G703 Interface
- DVB ASI/SPI Interface
- G703/IDR/ESC
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The extensive list of software options allows for budgeting
the modem for today's needs while covering tomorrow's
plans. These options can be purchased and then
activated in seconds via the front panel. Additional
hardware options such as Turbo, Interface Expansion,
High-Stability and DC Operation complete the modem's dynamic feature coverage. Stock this modem at its
minimum configuration (and cost) locally for immediate
distribution, then configure on-site by the installer,
allowing huge savings in time and dollars with just-in-time
feature installation.
The DMD50's impressive remote accessibility surpasses
all others in the field. Remote control via the RLLP
(Radyne Link LevelProtocol) or 10 Base-T SNMP
Ethernet or Web Browser which includes control of all the
modem's features plus software maintenance.
Additionally, the two-line backlit LCD can be
supplemented with terminal software running on a PC or
laptop. The modem now presents its entire monitor and
control (M&C) functions on the big screen.
Supported by an extensive line of redundancy switches,
converters, encoders and decoders, the DMD50 can be
built into any satellite requirement. Compatibility with
current modems, such as the DMD20, DMD2050,
DMD2401 and DMD15, are maintained for seamless
substitution and addition to your existing systems.
| DMD50 Performance |
|
Modulator |
| Modulation |
BPSK, QPSK, and OQPSK (8PSK, 16QAM Optional) |
| IF Tuning Range |
50 to 90 and 100 to180 MHz in 1 Hz Steps |
| L-Band Tuning Range |
950 to 2050 MHz in 1 Hz Steps |
| Impedance |
IF: 75 Ohm (50 Ohm Optional)
L-Band: 50 Ohm |
| Connector |
BNC: 75 Ohm
SMA: 50 Ohm, L-Band |
| Return Loss |
IF: 14 dB Minimum
L-Band: 10 dB Minimum |
| Output Power |
0 to -25 dBm |
| Output Stability |
IF: ±0.5 dB Over Frequency and Temperature
L-Band: ±1.0 dB Over Frequency and Temperature |
| Output Spectrum |
Meets IESS 308/309/310/DVB-S Power Spectral Mask |
| Spurious |
-55 dBc In-Band (50 to 90 MHz, 100 to 180 MHz, 950 to 2050 MHz)
-45 dBc Out-of-Band |
| On/Off Power Ratio |
>60 dB |
| Scrambler |
CCITT V.35 or IBS (Others Optional) |
| FEC |
Viterbi, K=7 at 1/2, 3/4 and 7/8
Trellis 2/3
Turbo Product Code (Optional)
BPSK 21/44
QPSK/OQPSK 1/2, 3/4, 7/8
8PSK/16QAM 3/4, 7/8
Legacy Turbo Rates: 0.495, 0.793 |
| Outer Encoder Options |
Reed-Solomon INTELSAT (DVB Optional)
Custom (N, K) Reed-Solomon |
| Data Clock Source |
Internal, External, Rx Recovered |
| Internal Stability |
1 x 10-6 Typical (Optional to 5 x 10-8 |
Demodulator |
| Demodulation |
BPSK, QPSK, and OQPSK (8PSK, 16QAM Optional) |
| IF Tuning Range |
50 to 90 and 100 to 180 MHz in 1 Hz Steps |
| L-Band Tuning Range |
950 to 2050 MHz in 1 Hz Steps |
| Impedance |
IF: 75 Ohm (50 Ohm Optional)
L-Band: 50 Ohm |
| Connector |
BNC: 75 Ohm
SMA: 50 Ohm, L-Band |
| Return Loss |
IF: 14 dB Minimum
L-Band: 10 dB Minimum |
| Spectrum |
INTELSAT IESS 308/309/310/DVB-S Compliant |
| Input Level |
-55 to +10dBm |
| Total Input Power |
-5 dBm or +40 dBc (the lesser) |
| FEC |
Viterbi, K = 7 at 1/2, 3/4 and 7/8 Rate
Rate Sequential 1/2, 3/4, 7/8 (Optional)
Trellis 2/3
Turbo Product Code (Optional)
<20Mbps
BPSK 21/44
QPSK/OQPSK 1/2, 3/4, 7/8
8PSK/16QAM 3/4, 7/8
Legacy Rates: 0.495, 0.793
>20Mbps
8PSK/16QAM
TPC 0.750
TPC 0.875 |
| Decoder Options |
Reed-Solomon INTELSAT (DVB-S Optional)
Custom (N, K) Reed-Solomon |
| Descrambler |
CCITT V.35 or IBS (Others Optional) |
| Acquisition Range |
Programmable ±1 kHz to ±255 kHz |
| Sweep Delay Value |
100 msec to 6000 seconds in 100 msec Steps |
Plesiochronous Buffer |
| Size |
0 msec to 64 msec |
| Centering |
Automatic on Overflow/Underflow |
| Centering Modes |
IBS: Integral Number of Frames
IDR: Integral Number of Multi-Frames |
| Clock |
Transmit, External, Rx Recovered or SCT (Internal) |
Monitor and Control |
| Ethernet 10 BaseT/Remote RS-485/Terminal RS-232, Web Browser |
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DMD50 Drop and Insert (Optional) |
| Terrestrial Data |
1.544 Mbps or 2.048 Mbps, G.732/733 |
| Line Coding |
AMI or B8ZS for T1 and HDB3 for E1 |
| Framing |
D4, ESF and PCM30 (PCM 30C) or PCM31 (PCM 31C) for E1 |
| Time Slot Selection |
n x 64 contiguous or arbitrary blocks for Drop or Insert |
| D&I Open Network Satellite Overhead 6.6% |
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| Time Slots |
TS1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31 |
| EFFICIENT D&I Closed Network, Satellite Overhead 0.4% |
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| Time Slots |
1-31 Any Combination |
Terrestrial Interfaces |
DVB, ASI/SPI, HSSI, Ethernet 4 Port 10/100 Base-T, Gigabit Ethernet (10/100/1000), G703
T3/E3/STS1, HSSI/Ethernet 4 Port 10/100 Base-T, HSSI/G703 T1/E1/T2/E2 |
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IDR/ESC Interface (Optional) |
| G.703 T1 (DSX1) |
1.544 Mbps, 100 Ohm Balanced, AMI and B8ZS |
| G.703 E1 |
2.048 Mbps, 75 Ohm Unbalanced and 120 Ohm Balanced, HDB3 |
| G.703 T2 (DSX2) |
6.312 Mbps, 75 Ohm Unbalanced and 110 Ohm Balanced, B8ZS and
B6ZS |
| G.703 E2 |
8.448 Mbps, 75 Ohm BNC, Unbalanced, HDB3 |
| G.703 E3 |
34.368 Mbps, 75 ohms BNC, Unbalanced, HDB3 |
IBS/Synchronous Interface (Standard) |
| RS-422/-530 |
All Rates, Differential, Clock/Data, DCE |
| ITU V.35 |
All Rates, Differential, Clock/Data, DCE |
| RS-232 |
(DCE up to 200 Kbps) |
Environmental |
| Prime Power |
100 to 240 VAC, 50 to 60 Hz, 60 Watts Maximum
48 VDC (Optional) |
| Operating Temperature |
0 to 50° C, 95% Humidity, Non-Condensing |
| Storage Temperature |
-20 to 70° C, 99% Humidity, Non-Condensing |
Physical |
| Size |
19"W x 19.5"D x 1.75"H
(48.26 cm x 48.89 cm x 4.45 cm) |
| Weight |
8.0 Lbs (3.64 Kg) |
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