PSM-500LT L-Band Satellite Terminal for VSAT/SCPC
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- Internal BUC Power Supply Options (24Vdc or 48Vdc)
- High Stability 10 MHz Reference
- Data rates of 1.2 kbps to 29.52 MHz
- Super Performance LDPC
- Performance within 0.3 dB of Theoretical
- DSP for fast acquisition of 315 ms at 9.6 kbps QPSK, 71 ms at 64 kbps QPSK
- Built-in 1:1 Redundancy
- Description
- Technical Specifications
- Support Documents
Overview
The PSM-500LT Satellite Terminal is the newest addition to the M500 Series of modems. This terminal is based on the popular PSM-500L modem, but supports an integrated 24Vdc or 48Vdc power supply for small and medium size BUC applications. The PSM-500LT maintains all the latest features and options of the M500 series while providing reliable power to both BUC and LNB, and a high stability 10 MHz reference, all in a self contained 1 RU chassis that is only 13 inches deep.
The PSM-500LT uses all of Datum Systems proprietary design implementations to achieve the best performance and reliability in the industry. Reliability is achieved by smartly using the latest FPGA devices to reduce part counts and very efficient high quality power supplies. These supplies have high MTBF figures and lower operating temperatures than the competition uses today. Datum Systems understands the need for highly reliable modems, especially in very remote locations where it is both difficult and expensive to reach. In situations where redundancy is required, the PSM-500LT comes standard with a built in 1:1 redundancy feature that only requires a few combiner/dividers. The modem takes care of switching the BUC/LNB power and the High Stability 10 MHz Reference. This L-Band modem terminal has it all.
Details
- Designed for Performance and Reliability
- Internal BUC Power Supply Options (24Vdc or 48Vdc)
- High Stability 10 MHz Reference
- Data rates of 1.2 kbps to 29.52 MHz
- Low Cost High Performance Turbo Products Codes
- Super Performance LDPC
- Firmware Upgradeable to 8PSK/TCM, 8QAM and 16QAM Modulation modes
- Performance within 0.3 dB of Theoretical
- Bridge or Router Ethernet IP Interface
- DSP for fast acquisition of 315 ms at 9.6 kbps QPSK, 71 ms at 64 kbps QPSK
- Asynchronous Overhead Channel, AUPC and Remote Modem Control
- Built-in 1:1 Redundancy
| System Specifications | |
|---|---|
| Operating Modes: | Rx and Tx Continuous (SCPC), Optional Tx Burst |
| Tx Tuning Range: | 950 to 1750 MHz, in 1 Hz Steps |
| Rx Tuning Range: | 950 to 1900 MHz, in 1 Hz Steps |
| Data Rate Selection: | 1 bps increments |
| Data Rate Minimum: | 1.2 kbps rate 1/2 BPSK |
| Data Rate Maximum: | 29.52 Mbps rate 3/4 8PSK |
| Data Rate Accuracy: | Accurate to 2 x 10 –12 of relative clock reference |
| Symbol Rate Range: | 2.4 ksps to 14.76 Msps in 1 bps step sizes |
| Available Modulation: | BPSK, QPSK, OQPSK, 8PSK, 8QAM, 16QAM |
| Available TPC Modes: | M5 Full, Short & Legacy, Comtech and Advanced |
| Concatenated RS: | Selectable N & K, IESS 308/309/310 and CT Comp |
| Reed Solomon Depth: | 4, 8 or 16 |
| FEC Options | |
| Viterbi - 1/2, 3/4, 5/6, 7/8 (k = 7) Trellis - 2/3 TPC-4K 1/2, 3/4, 7/8, 0.95, 21/44 TPC-16K 1/2, 3/4, 7/8, 0.922, 0.453 FlexLDPC 1/2 , 2/3, 3/4, 14/17, 7/8, 10/11, 16/17 Guaranteed Eb/No is 0.2 dB > Typical |
|
| Moddulator | |
| Transmit Output Power: | +5 to –35 dBm in 0.1 dB steps (max +3 dBm @ 50Ω) |
| IF Tx Impedance: | 50Ω (Type N) |
| Return Loss: | 14 dB typical, 10 dB minimum |
| Output Phase Noise: | Better than IESS-308/309 by 6 dB typical, 4 dB min |
| Level Stability: | ±0.5 dB, 0 ~ 50°C, MHz at 25°C |
| Level Accuracy: | Accurate ±0.5 dB, 950 ~ 1750 |
| Output Spurious: | < -55 dBc/4 kHz, Typical < - 65 dBc/4 kHz |
| Carrier on/off Isolation: | > 60 dB |
| Scrambler Types: | IBS, V.35, IESS, TPC, RS, LDPC, EFD |
| Data Clock Sources: | Internal, Terminal Timing, External, Rx Recovered |
| Internal Stability: | 1 x 10 –8 OCXO (Standard) |
| External Reference: | 1, 2,5 or 10 MHz input on rear panel |
| Transmit BUC Power: | Nominal 24 VDC, 100 Watts (Or 12/36/48 VDC) Max 60 VDC/6A up to 250 Watt |
| Transmit BUC Reference: | 10 MHz at nominal – 3 dBm internal or external |
| Reference Stability: | 1 x 10-8 OCXO, 2 x 10-7/ year aging (L-Band) |
| Reference Phase Noise: | -110 dBc @ 10 Hz, -130 dBC @ 100 Hz, -140 dBc @ 1 kHz, -150 dBc @ 10 kHz, -155 dBc @ 100 kHz |
| Demodulator | |
| Rx Carrier Input Range: | -20 to -70 dBm, scales to -101 dBm at lower rates (minimum = 10 log(symbol rate) – 135 dBm) |
| IF Tx Impedance: | 75Ω Type F -Connector |
| Return Loss: | 10 dB minimum |
| Max Composite Input: | - 5 dBm or +40 dBc, whichever is lower power |
| Input Phase Noise: | Better than Intelsat by 6 dB typical, 4 dB min |
| Rx Acquisition Range: | Programmable from ± 100 Hz to ± 1.25 MHz |
| Descrambler Types: | IBS, V.35, IESS, TPC, RS, LDPC, EFD |
| Fast Receive Lock Performance | |
| Example: FEC ½, EB/N0 = 6.0 dB, Acquisition Range of ± 30 kHz | |
| • 315 ms at 9.6 kbps QPSK • 175 ms at 9.6 kbps BPSK • 71 ms at 64 kbps QPSK |
|
| Plesiochronous or Doppler Buffer Store | |
| Receive Buffer Range: | 4 bits to 524,280 bits, in 1 bit steps or delay time |
| Receive Clock Options: | Internal, External, Mod Clock, Receive Clock |
| Terrestrial Interfaces | |
| Standard Synchronous: | Serial RS232, RS422, V.35, V.36, EIA-530(A) |
| Optional: | HSSI Ethernet IP 10/100 Base-T (Bridge & Router, QoS) TCP/IP Acceleration (Software Only) -Supports Up to 5 Mbps Aggregate throughput and 200 Continuous Sessions Advaned Ethernet IP, GigE, High PPS Throughput, Vyatta Bridge/Router Dual G.703/E1 (D&I), Dual Bal Inputs (RJ-45), UnBal (BNC) Opt Full E1, PCM-30 (CAS), PCM-31 (CCS), N X 64, N = 1 to 31 Time Slots |
| Multiplexer and Overhead Features | |
| IBS Multiplexer: | Built-in IBS Overhead Channel with standard and enhanced variable rate RS232 and RS485. Supports Automatic Uplink Power Control (AUPC), Remote Modem Control Interface and 2 Form-C Backward Alarms |
| Monitor and Control | |
| Front Panel: | LCD and Keyboard for easy control and status |
| Terminal Mode: | Full screen interactive display of all parameters |
| Remote Packet Mode: | Packet driven RS232/RS485 control and status |
| Optional Web Browser: | Available through the Ethernet Interface SnIP SNMP Available through the Ethernet Interface SnIP |
| Diagnostics | |
| Loopback Modes: | IF, bi-directional terr and sat data loopbacks |
| BER Test Pattern: | 2047 or 2 23-1 |
| BERT: | Built-in bi-directional bit error rate test set |
| Carrier: | Pure carrier and sideband |
| Form C Relays: | Assignable faults to Form C rear alarm connector |
| Environmental and Physical | |
| Prime Power Input: | 90 to 264 VAC, 50/60 Hz, -48 VDC (HW Option), < 30 watts, 220 Watts Max fully loaded including internal BUC and LNB power |
| BUC Power Options: | 24 VDC @ 160 Watts, 5A max w/PFC 48 VDC @ 160 Watts, 3.2A max w/PFC |
| LNB Output Power: | Selectable: Off, 13 or 18 VDC |
| Power Factor Correction: | Optional at all power levels |
| Operating Conditions: | 0 to 50°C, to 95% humidity, non-condensing |
| Storage Temperature: | - 20 to +70° C, 99% humidity, non condensing |
| Size: | Rack mount - 1 RU (19”W x 12”D x 1.75”H) |
| Weight: | Approximately 7 lbs fully configured |
| Certifications and Compliance: | CE Certified for: EN55022 Class B (Emissions) EN50082-1 Part 1 (Immunity) Can/CSA C222 No. 950-95 (Safety) UL-1950 (Safety) |
| RoHS Compliant: | Meets RoHS lead-free standards |
PSM-500LT L-Band Satellite Terminal for VSAT/SCPC Datasheet PDF
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