Datum Systems' latest satellite modem implementation represents state of the art enhancements to the popular PSM-4900 series of modems at the industry's lowest price. The new PSM-500 series incorporates all of the features of the PSM-4900, and adds 8PSK and 16QAM modulation modes, a standard Reed-Solomon and IBS multiplexer and higher data rates. The multiplexer's overhead channels provides the capability for orderwire, AUPC and Remote Modem Control to every modem. The PSM-500 series is available in IF versions for 70 MHz, I40 MHz and L-Band applications.
To provide capabilities consistent with customer needs, the PSM-500 may be purchased in 3 upgradeable versions or "Feature Sets", the M505, M511 and M523. Each offers a combination of modulation modes and data rates as shown below designed to match the needs of various users without paying for features not needed. In addition a user can upgrade a modem from one version to another at a very nominal cost when requirements change.
Upgrades from one version to another are accomplished by software/firmware loaded into the modem via a new USB connection on the modem rear panel.
There are currently two hardware options available for the PSM-500 series: TPC FEC cards and Ethernet Interface Cards. The TPC is a plug in card to the main modem board and can be either a 4k block Turbo Product Codes FEC (as in the PSM-4900) or a newer 16k block Turbo Product Codes FEC with higher performance (backward compatible with the PSM- 4900). The Ethernet interface can be either the current "SDMS" type card or a new Satellite Network Interface Processor, or "Snip", which is in development now.
PSM-500 Series Feature Matrix