Datum Systems PSM-500L L-Band SCPC VSAT Satellite Modem
IP packet throughput over TCP/IP links via Ethernet IP interface option
PSM500L L-Band SCPC VSAT Satellite Modem
The Datum Systems high performance L-Band Satellite Modem, the PSM-500L, is the industry’s most reliable & flexible modem in its class with multiple external BUC supply options for easy field configurability. The PSM-500L is unmatched by any other modem for its BER performance, fast acquisition, low latency and total power/bandwidth optimization.
Advanced FlexLDPC
With unparalleled configuration flexibility and superior coding gain, FlexLDPC takes FEC technology innovation to the next level, bringing strong economic advantages to satellite service providers and their customers. Granular code rates and block sizes get you the most out of your available satellite bandwidth and spectral power, while keeping processing latency at the desired level.
SCPS TCP/IP Acceleration
Datum Systems provides an embedded protocol acceleration option based on the Space Communication Transport Specification (SCPS-TP). Our integrated optimization software provides increases in IP packet throughput over TCP/IP links via our Ethernet IP interface option.
BUC/LNB Power & Reference
The PSM-500L provides an optional external BUC capability for maximum power flexibility, swappable voltage and power options. LNB power is standard from an integrated power supply. A High Stability10 MHz reference is also provided through the modem Transmit (N-Type) and Receive (F-Type) connections at the rear. Reference, BUC and LNB power may be disabled via the front panel. Front panel voltage and current measurements are available for BUC and LNB monitoring.
Easy Feature Unlocks
The PSM-500LT can be easily upgraded via front panel key codes. Upgrades are simple to implement and are available in preconfigured software versions, offering a variety of options for modulation, FEC and data rates up to 29.5Mbps.
Redundancy
Built-in 1:1 redundancy comes standard on the PSM-500LT and supports BUC/LNB power and reference switching. It can be enabled through the front panel and requires only a few external cables and power splitters.
Key Highlights
• FlexWPC Multi Block Sizes & Code Rates
• External BUC Power Flexibility
• High Stability 10 MHz Reference
• 1.2 kbps to 29.5 Mbps
• BPSK,QPSK,OQPSK, 8PSK, 8QAM/16QAM
• TPC, Viterbi, TCM, Reed Solomon
• Most FEC Types and Modcods
• Std and Adv Ethernet IP Interfaces
• Bridge and Router Modes, QoS
• SCPS - TCP/IP Acceleration
• Dual G.703/E1, Full/Fractional D&I (N X 64)
• Lowest Latency, <15 ms at 64 kbps % QPSK
• Typical acquisition time, 71 ms at 64 kbps
• Async Channel, AUPC
• Remote Modem Control Channel
• Tx Output of 40 dB, +5 to -35 dBm
• Optional SNMP Remote Interface
• Web Browser GUI
Network Architectures
• Point-to-point
• Point-to-Multipoint
• Mesh
• Multicasting
• Uni-Directional
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/ o 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
Engineered and designed specifically for small low cost VSAT type earth stations.
