Paradise P300 Wideband if Feature, Extension of the 50MHz 90MHz if range up to 50MHz 180MHz

P300 / P310 -IBS Additional Features

INTELSAT Reed-Solomon Feature

UAsync ESC Feature

A fully INTELSAT compliant Reed-Solomon Codec providing

Automatic selection of appropriate INTELSAT values of `n, k & t` and interleaving depth for data rate & service selected (n, k, t = 126, 112, 7 by default, switching to 225, 205, 10 or 219, 201, 9 with 4/8 deep interleaving as required for IDR & TCM/IDR)

Provides improved low Eb/No performance in framed mode due to use of extended threshold iframe sync algorithms

Enhanced capabilities with the `Custom Features` feature (see later)

Wideband IF Feature

The extension of the 50MHz - 90MHz IF range up to 50MHz - 180MHz

High Date Rate Feature

The extension of the data rate range to include rates above 512kbps up to 5.0Mbps (depending

Uon modulation and FEC modes)

The addition of a high rate async ESC channel, which may be internally linked to the M&C port to provide control of distant end equipment (in all overhead modes) without additional cabling. The Async ESC feature provides as follows:

Support for any async ESC rate in Closed Net Plus ESC mode, providing a scalable overhead which adds the minimum possible overhead to the satellite data to provide the baud rate selected (adding from <1% to 100% overhead). Closed Net Plus ESC mode also provides an optional backward alarm facility and above 32kbps a synchronous scrambler to replace the normal error multiplying V.35 self synchronising scrambler.

A high rate async ESC channel in IBS/SMS overhead, achieving 2400 Baud with a 64kbps carrier (requires IBS/SMS feature, standard on P300-IBS and above)

Async access to the IDR 8kbps synchronous ESC channel. (requires IDR option, standard on P300-IDR and above)

Software selectable RS232, RS485 or RS422 interface.

IBS/SMS Feature

Satellite Framing in accordance with IBS (to IESS 309) and SMS (EESS 501), including:

User assigned Tx, and corresponding Rx display of, Station ID, Channel ID & Spare ID within SMS overhead to aid carrier identification.

UA high rate async ESC channel in IBS/SMS overhead (see Async ESC above)

Drop/Insert Feature

The most sophisticated Drop/Insert functions of any satellite modem whilst still maintaining simplicity of configuration and operation. The Drop/Insert feature provides:

1544 kbps T1-D4 & T1-ESF and 2048 kbps G.732 operation Arbitrary & independent timeslot selection for Drop & Insert

Full support for CRC-4 in G.732 mode and CRC-6 in T1-ESF mode Terrestrial error monitoring based on Frame Alignment Words (FAW) or CRC G.732 `E bit` processing, allowing the display of the outbound terrestrial error rate Loopthrough or generation of local bearer onto which to insert the Rx data from any normal clock source (eg station clock, clock from satellite, internal clock)

Automatic generation of backup bearer so Rx traffic is not lost if Drop bearer into Tx fails and bearer is looped through to the Insert mux to pick up Rx data

Timeslot ID maintenance even with Closed Net Plus ESC carriers

iEnhanced features with the Extended D/I Feature (see later)

P300H P300 Series Modem Installation and Operating Handbook Page 13