The Motorola DSR-4400MD is a powerful digital headend product, capable of simultaneous decryption of
up to 24 services. Whether your application is to feed a 256 QAM channel or a 64 QAM channel, the DSR4400MD is the answer. With the DSR-4400MD, you can output a full MPEG-2 multiplex at an information rate
of 38.8 Mbps or 26.97 Mbps, depending on your needs.
The Motorola DSR-4400MD comes equipped with industry standard interfaces that enable seamless
connection to DigiCipher II IRT-1000/2000, MPS Remultiplexer and other head-end equipment for cable
encryption and cable modulation.
The ASI and DHEI inputs provide additional flexibility for the Motorola DSR-4400MD by allowing loop-through
decryption capabilities when more than 24 services of decryption are required. They also provide a convenient
mechanism for monitoring and troubleshooting the signal as it passes through the cable headend.
The full range of DigiCipher II system symbol and code rates is supported, including the higher combined
symbol rate of 29.27 Msps, rate 3/4 to enable 40.46 Mbps information rate transmission. With the lower
SCPC rates, the DSR-4400MD becomes a flexible product that supports partial transponder utilization.
Packaged in a 1RU chassis, the DSR-4400MD offers local monitoring of a single service and the ability to step
through the authorization and encryption state of each service. In the event of a transport stream fault, or loss
of authorization for any of the provided services, the DSR-4400MD will trigger an alarm indication for the user.
TECHNICAL SPECIFICATIONS
Input
Input Signal Level: (-)60 dBm to (-)25 dBm
Input Frequency: 950 - 1550 MHz
Input Impedance: 75 Ω
Input Connectors: Two (2) F-type
LNB Power Out F-Connector: 16V DC min/450 mA
Digital Processing
Modulation Modes: OQPSK and QPSK
Symbol Rates: 3.25 to 29.27 Msps
FEC Rates: 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 7/8 (@3.25
to 29.27 Msps) 5/11 (@ 19.51 and
29.27 Msps)
Eb/No: 4.0 db @ 19.5 Msps (FEC=3/4)
Video
Frequency Response (NTSC): ±0.9 dB, p-p,1 kHz - 4.2 MHz
Frequency Response (PAL): ±0.9 dB, p-p, 1 kHz - 5.5 MHz
Signal/Noise Ratio: 57 dB (min)
Differential Gain: 4.5% p-p (max)
Difference Phase: 4.5 deg. p-p (max)
Output Impedance: 75 Ω
Output Level: 1.0 V p-p ± 10%
Audio
Output: 1 stereo pair or 2 mono
Output Level: ±18.0 dBm, ±1.0 dB into 600 Ω
balanced load, adjustable (0 to -15 dB)
Frequency Response: ±1.3 dB, 20 Hz to 20 kHz
Total Harmonic Distortion: 0.3% or better at 1 kHz
Signal/Noise Ratio: 85 dB or better at 1 kHz
Isolation, L/R: 80 dB at 1 kHz
Impedance: 600 Ω
Connector: Quick disconnect screw terminal
Data
Asynchronous Data Rate: 1.2, 2.4, 4.8, 9.6 and 19.2 kbps
ASI Input/Output
Format: Asynchronous serial interface
Standard: CENELEC EN 50083-9
DHEI Input/Output
Format: MPEG-2
Packet Clock Rate: 29.26 or 38.81 Mbps
Decryption
Number of Services: up to 24 independently encrypted services
Cue Tones
Signal Type: Differential output
Signal Level: -3 dBm, (600 Ω)/tone min
Connector: Quick disconnect screw terminal
Alarm Relay
Form C: Quick disconnect screw terminal
Physical
Operating Temperature: 0° to 40°C ambient
Humidity: 95%, relative maximum
Dimensions: 48 cm/18.90" (W) x 46 cm/18.11" (D)
x 4.2 cm/1.65" (H)
Weight: 5.0 kg/11 lbs (approx.)
Power Input: 90-250 VAC, 47-63 H, 25 W (max)