Datum PSM-500LT L-Band Satellite Terminal combines the performance and reliability of our M500 Series modems with an integrated Power Supply and High Stability 10 MHz reference for most BUC and LNB system applications. The PSM-500LT is based on the industry’s most reliable & sophisticated modems in its class, the PSM-500 and the PSM-500L.
Internal BUC and LNB Power (24Vdc or 48Vdc)
Standard High Stability 10 MHz Reference
New Flexible LDPC with Multiple Block Sizes
1.2 kbps to 29.5 Mbps, 1 bps steps
Viterbi, TCM, Reed Solomon, Turbo Product Codes
Most TPC Code Rates and Block Sizes Available
Compatible with other Modem Manufacturers
Ethernet IP Data Interface with Linux based SnIP provides Bridge or Router IP Modes
Lowest Latency, <15 ms at 64 kbps ¾ QPSK
Standard IBS Multiplexer, Async Overhead Channel, AUPC and Remote Modem Control
Typical acquisition time of 315 ms at 9.6 kbps QPSK, 71 ms at 64 kbps QPSK.
Tx Output Power Range of 40 dB, +5 to –35 dBm
Optional Ethernet Remote Interface
Legacy PSM-4900 Compatible
Built-in 1:1 Redundancy (BUC Power & Reference)
Internal BUC/LNB Power & Reference
The PSM-500LT provides BUC and LNB power from an integrated power supply. A High Stability 10 MHz reference is also provided through the modem Transmit (N-Type) and Receive (F-Type) connections at the rear. Reference, BUC and LNB power can be disabled via the front panel. Front panel voltage and current measurements are available for BUC and LNB monitoring.
FEC types include Viterbi, Trellis, Reed Solomon, Turbo Product Codes (both 4K & 16K block sizes) and the most Flexible LDPC on the market today. In addition, the PSM-500LT has the largest selection of code rates and block sizes. Available LDPC block sizes include 256, 512, 1k, 2k, 4k, 8k & 16k.
Sophisticated digital signal processing eliminates all on board physical adjustments and provides performance within 0.3 dB of theoretical. Datum’s unique DSP design also delivers the world’s fastest SCPC carrier acquisition.
Key Enabled Upgrades
The PSM-500LT can be upgraded via front panel key codes. Upgrades are simple to implement and are available in preconfigured software versions, which offer a variety of options for modulation, FEC and data rates up to 29.5Mbps.
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.
Front Panel & Diagnostics
The modem front panel provides a backlit LCD display, full keypad and LED indicators for monitor and control of all modem parameters. The PSM-500LT also has advanced monitor and BERT functions available to the user for quick field diagnostics.
For more details see Data Sheet: Datum PSM-500LT_Datasheet Dist 01-07-09 Rev 1 3
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