Datum PSM-4900 Satellite Modem

PSM-4900 Satellite Modem

The Datum Systems' PSM-4900 is used in thousands of locations around the world. It is manufactured for System Integrators and is available with private labeling for volume customers.

The PSM-4900 uses all of Datum Systems proprietary design technology implementing the best performance and reliability possible at one of the lowest costs on the market.

The PSM-4900 is a variable data rate programmable satellite modem with 70 MHz IF. This digital modem is programmable for either BPSK or QPSK operation and can be used in a wide variety of system configurations. The standard PSM-4900 includes integral Viterbi Forward Error Correction, programmable data interfaces and built-in 1:1 redundancy capability. It can be outfitted with a variety of options like an IBS Multiplexer with AUPC and a concatenated Reed-Solomon FEC codec. New options being developed include the high performance Turbo Product Codes FEC. External interface converters are available for Ethernet and G.703 T1 or E1.

View the data sheet in HTML format here 4900 Data Sheet, or
Download/View the data sheet in Adobe Acrobat (PDF) format here 4900 PDF Download

Key Benefits

	Lower cost than even the PSM-2100 or 512.
	Performance within 0.3 dB of theoretical.
	Low cost, high performance Turbo Products Codes FEC available. See performance in Tech Note 6
	Data rate programmable from 1200 bps to 4.92 Mbps in 1 bps increments.
	IF frequency programmable from 50 to 90 MHz in 1Hz increments. Optional 100 to 180 MHz IF Available.
	DSP for fast acquisition of 315 milli-seconds at 9.6 kbps QPSK, 196 milli-seconds at 16 kbps QPSK.
	Added programmability for compatibility with virtually any equipment complement.
	Eight user defined complete configurations can be stored and recalled.
	New Programmable IBS Multiplexer and Reed-Solomon Codec available
	Built-in independent transmit and receive BERT.
	Built-in 1:1 redundancy capabilities and logic requiring only an external splitter/combiner (for RF) and a "Y" cable for data.
	1 U rack mount unit with complete front panel and remote control.
	Designed to accept newer interfaces and options, like Turbo Product Codes FEC and Ethernet Data Interfaces.

Send mail to Mike (at) datumsystems.com with questions or comments about this web site.
Last modified: September 04, 2008