Each new generation of Datum Systems modems
represents both evolutionary and revolutionary technology enhancements. Most of
the evolutionary changes revolve around learning from past experience to enhance
usability, reliability and programmability. The revolutionary changes are
sometimes hidden technology enhancements that intend to create a superior
product manufactured to a reasonable price point. Some past revolutionary
changes were the introduction of extremely fast DSP based acquisition that has
yet to be matched in the market, and a fully zero IF design that others are just
now copying.
The PSM-500 Series of modems is no
exception. Five years of production of one of the most reliable, high
performance products on the market makes us strive to push further. Below are a
few of the new features introduced with the PSM-500 Series.
 | A 10 fold increase in the amount of
programmable logic allows the PSM-500 to incorporate sophistication, but more
importantly the ability to update and refine almost every aspect of this
modem's design. There are almost 2 million programmable gates available. |
| Many features can be field upgraded by
firmware without adding new hardware. |
| Moving all FEC technology to Field
Programmable Gate Arrays (except TPC). The FECs are also on a plug in card
that can be replaced or reloaded with new technology, and two card slots are
provided. |
| The FEC can be bypassed for raw
uncorrected data. |
| Extensive use of new Ball Grid Array
packages to reduce size and increase reliability. |
| Introduction of 8PSK and 16QAM
modulation modes. |
| Both Open and Closed model transmission
characteristics are selectable. |
| New data interface logic automatically
detects optimum clock and data settings. |
| Our built-in BER Test set can be switched to look
toward the "Line" side for external testing of cables and connections. |
| The data logic is capable of speeds up
to 20 Mbps, a 4 fold increase over the PSM-4900. |
| Sophisticated new smart logic to reduce
common problems with sensitive modulation modes likes 16QAM. |
| New true RMS RF level circuitry to
accurately control the complex waveforms occurring over multiple modulation
modes. |
| A new Satellite Network Interface
Processor, "SnIP", option containing a 32 bit processor powerful enough to
smoothly run open source Linux with all the routing facilities available
there. In addition it offers a hardware security engine. |
